B. No, the reduced row echelon form of the augmented matrix is which is an inconsistent system. In this case, the vector u is [0 26 8] and the matrix A is [5 -3 1; -3 7 1].
To check if u is in the plane spanned by the columns of A, we can form the augmented matrix by appending u to A, and attempt to reduce it to the reduced row echelon form.
If the resulting augmented matrix is an inconsistent system (i.e. the last row has a non-zero coefficient in the last column and a zero in the right-hand side), then u cannot be written as a linear combination of the columns of A, and thus it is not in the plane spanned by the columns of A.
In this case, the reduced row echelon form of the augmented matrix is an inconsistent system, which means that u cannot be written as a linear combination of the columns of A, and thus it is not in the plane spanned by the columns of A.
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2. The CPI was 255.657 in the year 2019 and 292.655 in the year 2022. Calculate the rate of inflation to
the nearest hundredth of a percent. Show your work.
The rate of inflation to the nearest hundredth of a percent is 14.473%
What is rate of inflation?
Rate of Inflation is the rate of increase in prices over a given period of time. Inflation is typically a broad measure, such as the overall increase in prices or the increase in the cost of living in a country.
To calculate the rate of inflation, we use the following formula:
Rate of inflation = (CPI 2022 - CPI 2019)/ CPI 2019 x 100
Putting the parameters in the question
Rate of inflation = ( 292.655 - 255.657)/ 255.657 x 100
Rate of inflation = 37/255.657 x 100
Rate of inflation = 14.473%
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let x represent the number of occupants in a randomly chosen car on a certain stretch of highway during morning commute hours. a survey of cars showed that the probability mass function of x is as follows. k 1 2 3 4 5 p(x
the table's depiction of the probability distribution for X And section an asks us to calculate the likelihood that X equals two. When X = 2, the chance of X = 2 is 0.15, and for B, we need to determine the likelihood of more than 3.
There are only two ways that X might be greater than three: X is equal to four, or X is equal to five, increasing the likelihood that X is greater than three. Therefore, the likelihood of being more than three is equal to the likelihood of being four. Additionally, the likelihood of being five, These probability are.03 and.02, which equals C. We are asked to determine the likelihood that X is equal to one. When X is, the probability that X will be one is.7, and we want to know the likelihood that X will be less than four. The options for X being one, two, or three or fewer than four.
Therefore, these have odds of.1,.15, and.7.The chance is 95 percent. Since you were asked to determine the mean for X for discrete random variables like this one, the mean is equal to the total of all possible values of X multiplied by the probability associated with each one. Therefore, that is once. 2 times 7 plus. Three times 15 plus. 1 and onward. And this equals 1.52; to find f, we must determine the discrete random variable X's standard deviation.
This formula, which also has this form for the standard deviation, can be used to represent the latter version of the standard deviation, which is the square root of one squared times. 7Thus, that is two times squared. 15 and onward. After completing the square root procedure, we deduct the principal squared, and the result is approximately 2.93–5. The goal of having X equal to at least two has not been achieved for G, as evidenced by the fact that the typical number of occupants for cars is 1.52.
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What is the product of this expression? −14(8x−34)
Answer:
Step-by-step explanation:
-14(8x-34)
First multiply -14 through the entire equation -14*8=-112 and -34*- (-14) =476
Now the equation is -112x + 476 and then subtract 476 from both sides to be able to solve for x
-112x = -476 and finally divide both sides by -112 to isolate x and find the answer
x= 4.25
May I have help on This I’ll give you brainliest
Answer:
p=0.83 g/cm3
Step-by-step explanation:
Density = Mass ÷ Volume
So,
Density = 25 g ÷ 30 cm³ = 0.83 g/cm³ (rounded to the nearest hundredth place).
Cindy is buying a car from Robert for $4,500. Robert has agreed to accept a down payment of $500 and 16 consecutive monthly payments of $250 from Cindy to pay the car off. In agreement, Cindy writes up the following contract: “I agree to pay Robert a down payment of $500 in addition to 16 payments of $225 in exchange for this car.” Robert does not sign the contract, saying there are mistakes Cindy should correct. Which of the following is not a correction Cindy should make?? a. Cindy needs to change the monthly payment amount to $250 as agreed. b. Cindy needs to include the word “monthly” to describe the frequency of her payment. c. Cindy needs to change the number of payments to 17 to include the down payment. d. Cindy needs to include Robert’s last name and her full name.
Cindy needs to correct the following: a. Raise the monthly payment to the previously agreed-upon $250. Although the contract specifies a payment of $225, Robert and Cindy instead decided on a monthly bill of $250.
a. Just use word "monthly" to indicate how frequently the payment will be made. This makes it obvious that the payments must be made on a regular basis and specifies the agreement's conditions. c. Increase the total payments to 17 in order to account for the down payment. This makes sure that every expense, including the down payment, is taken into consideration. Cindy does not need to change Option d, which includes Robert's last name plus her complete name, in the contract. Even though it's a good concept in general It is not a change to the payment terms stated in the agreement to provide both parties' real identities in an agreement for clarification and identification reasons.
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Answer: C: Cindy needs to change the number of payments to 17 to include the down payment
Step-by-step explanation: good Bye :)
An airplane travels 1,800 miles in 3.6 hours, going with the wind. The return trip takes 4 hours and is against the wind. Find the rate of the airplane with no wind. Find the rate of the wind.
The rate of the airplane with no wind is; 475 mph
The rate of the wind is; 25 mph
How to find the rate of speed?The "rate" at which something travels can be referred to as velocity.
Thus;
Velocity(V) = displacement / time
So using the given parameters we can say that the speed going with the wind is;
Vp + Vw = 1800/3.6
Vp + Vw = 500 mph ------(1)
In a similar fashion, the speed going against the wind, is expressed as;
Vp - Vw = 1800/4
Vp - Vw = 450 mph ------(2)
Add equation 1 and 2 to get;
2Vp = 950 mph
Vp = 950/2
Vp = 475 mph
Similarly;
475 - Vw = 450 mph
Vw = 25 mph
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he chart below shows the number of resource units the countries of gamma and omega must use to produce one unit of food or one unit of clothing. which of the following statements is true according to the chart above?
The statement which true according to the chart is: Since Omega can produce both food and clothing using fewer resources than Gamma, it cannot benefit from trade with Gamma. The correct option is D.
What is trade and why it is important?Trade is important for keeping a competitive global economy and lowers the prices of goods internationally as it establishes innovation and encourages markets to become specialized. The ability to trade also permits access to goods and services which might be of higher quality and lower cost than its domestic alternative. Because countries are provided with different assets and natural resources, some may produce the same good more efficiently and sell it more cheaply than the others. Countries which trade can take advantage of the lower prices available in other countries.
In this case, while Gamma is using 10 resources units to produce one unit of food, Omega is only using 5 resources units. And, while Gamma is using 9 resources units to produce one unit of clothing, Omega is only using 3 resources units. This means Omega can produce both food and clothing using fewer resources than Gamma, so, it cannot benefit from trade with Gamma.
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Although part of your question is missing, you might be referring to this full question: The chart below shows the number of resource units the countries Gamma and Omega must use to produce one unit of food or one unit of clothing. Which of the following statements is true according to the chart above? (Chart is attached).
A. Trade should take place, with Gamma specializing in clothing production and Omega specializing in food production.
B. Trade should take place, with Gamma specializing in food production and Omega specializing in clothing production.
C. Each country should devote half of its resources to food production and half to clothing production and not trade.
D. Since Omega can produce both food and clothing using fewer resources than Gamma, it cannot benefit from trade with Gamma.
E. Since Gamma can produce both food and clothing using fewer resources than Omega, it cannot benefit from trade with Omega.
A chef uses 2 cups of olive oil and n cups of
for the total
corn oil. Write an expression
number of cups used.
2+n is the expression used to represent the number of cups used.
What is Expression?An expression is combination of variables, numbers and operators.
Given that chef uses 2 cups of olive oil and n cups of for the total corn oil.
We have to find the expression number of cups used.
The expression for the total number of cups used would be 2 cups of olive oil + n cups of corn oil, which can be written as:
2 + n
Hence, 2+n is the expression used to represent the number of cups used.
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ashlee makes beaded jewelry. she charges 6 for a bracelet and 12 for a necklece. suppose the earned 168 selling her jewery. let b be the number of braclets she sold and n be the necklece she sold.
The number of bracelets Ashley sold in terms of the number of necklaces sold is b = (168 - 12n) / 6
Let's represent the number of bracelets Ashley sold as "b" and the number of necklaces as "n".
The total amount earned can be expressed as the sum of the revenue from bracelets and necklaces:
6b + 12n = 168
To solve for the number of bracelets, we can isolate b by subtracting the revenue from necklaces and dividing by the price per bracelet:
6b = 168 - 12n
b = (168 - 12n) / 6
This gives us the number of bracelets Ashley sold in terms of the number of necklaces sold.
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consider an experiment that consists of determining the type of job - either blue-collar or white collar- and the political affiliation -republicans, democratic or independent - of the 15 members of an adult soccer team. how many outcomes are in the event that at least one of the team members is a blue-collow worker?
We rule up the team members, say by Social Security number. We now ask each in turn her/his job explanation and political affiliation and data the information.
For any person, the information can be recorded as an instruct pair (x ,y) where x is one of B or W, and y is one of R, D, or I. So, there are for any person 6 possible records. The team conclusion is a sequence of such records, of length 15. Thus, for our team there are 6^15 possible results.
How many of these results have at least one blue-collar worker? How many have no blue-collar worker? Then x=W, and y can still take on any of 3 values, for a total of 3^15 possibilities. Thus, the number of possible summaries with at least one B is 6^15−3^15.
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Find an equation for the line that passes through the points (-6, -6) and (4,2).
Answer:
y-(-6)=8/10(x-(-6)
Step-by-step explanation:
Using slope point formula (y-y1=m(x-x1)) we can sue the given coordinates to fill in the equation.
y1=-6 x1=-6
Substitute into the equation: y-(-6)=m(x-(-6))
Next we have to find slope using slope formula (y2-y1/x2-x1) 2-(-6)/4-(-6)=8/10
Substitute in for m: y-(-6)=8/10(x-(-6))
You now have the completed equation!
-Hope this helped
Please Help ASAP - 100pts + Brainliest if correct!!
The function f(x) = 4x - 11/(x - 2) cannot be written in the form g(x) = a/(x - h) + k because the denominator of f(x) is not linear. The denominator is a quadratic equation and cannot be written in the form x - h. The form g(x) = a/(x - h) + k is only applicable to linear functions.
According to a report from the United States Environmental Protection Agency, burning one gallon of gasoline typically emits about 8.9 kg 8.9 kg8, point, 9, start text, space, k, g, end text of CO 2 CO 2 start text, C, O, end text, start subscript, 2, end subscript. A fuel company wants to test a new type of gasoline designed to have lower CO 2 CO 2 start text, C, O, end text, start subscript, 2, end subscript emissions. Here are their hypotheses: � 0 : � = 8.9 kg � a : � < 8.9 kg H 0 H a :μ=8.9 kg :μ<8.9 kg (where � μmu is the mean amount of CO 2 CO 2 start text, C, O, end text, start subscript, 2, end subscript emitted by burning one gallon of this new gasoline). Which of the following would be a Type II error in this setting?
A Type II error in this setting would be failing to reject the null hypothesis when it is actually false.
What is the hypothesis?In statistics, hypothesis testing is the process by which an analyst tests an assumption about a population's parameter. Using sample data, hypothesis testing is performed to examine the plausibility of a theory.
Here are their hypotheses:
H0:μ=8.9 kg
Ha:μ<8.9 kg
(where μ is the mean amount of CO2 emitted by burning one gallon of this new gasoline).
In this case, a Type II error would be failing to reject the null hypothesis when it is actually false.
In other words, accepting that the mean amount of CO₂ emitted is equal to 8.9 kg when it is actually less than 8.9 kg.
Thus, reject the null hypothesis.
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If the resistance in an electrical circuit is held constant, the amount of current flowing through the circuit varies directly as the amount of voltage applied to the circuit. When 8 volts are applied to a circuit, 160 milliamperes (mA) of current flow through the circuit. Find the new current if the voltage is increased to 9 volts.
The new current if the voltage is increased to 9 volts is given as follows:
0.18A = 180 mA.
What is Ohm's First Law?Ohm's First Law states that a circuit's voltage is obtained as the multiplication of the resistance and of the current, as follows:
V = RI.
In which:
V is the voltage.R is the resistance.I is the current.When 8 volts are applied to a circuit, 160 milliamperes (mA) = 0.16 A of current flow through the circuit, hence the resistance is obtained as follows:
8 = 0.16R
R = 8/0.16
R = 50 ohms.
Then the new current if the voltage is increased to 9 volts is given as follows:
9 = 50I
I = 9/50
I = 0.18A = 180 mA.
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The two functions shown below do not intersect in the doman shown in the table. If both functions exist in the domain of all real numbers, what is hte linear function that can be written of f(x)
The linear function in the graph is y = -x + 2
How to determine the graphed functionFrom the question, we have the following parameters that can be used in our computation:
The graph (see attachment)
On the graph, we can see that the first curve is a quadratic function,
Also, it has an open circle at x = 1
So, we have:
x² + 2 if x < 1
Next, we have a linear equation with a closed circle at x = 1
So we have:
y = -x + 2 for x ≥ 1
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Pizza Shack offers the following pizza deals.
• A 16-inch diameter round pizza for $16
• Two 12-inch diameter round pizzas for $17.50
• A 15-inch square pizza for $17
Which of these options is the best deal? Explain your reasoning in detail, using complete sentences, and if any calculations are involved, show the calculations.
Best deal for the round pizza is,
''Two 12-inch diameter round pizzas for $17.50.''
What is Division method?Division method is used to distributing a group of things into equal parts. Division is just opposite of multiplications. For example, dividing 20 by 2 means splitting 20 into 2 equal groups of 10.
We have to given that;
Pizza Shack offers the following pizza deals.
• A 16-inch diameter round pizza for $16
• Two 12-inch diameter round pizzas for $17.50
• A 15-inch square pizza for $17
Now, For first deal;
• A 16-inch diameter round pizza for $16
Hence, The cost of 1 inch diameter round pizza = $16/16
= $1
For second deal;
• Two 12-inch diameter round pizzas for $17.50
Hence, Cost of 1 round pizza for 1 inch diameter = $17.50 / 2×12
= $0.73
For third deal;
• A 15-inch square pizza for $17
Hence, The cost of 1 inch diameter round pizza = $17/15
= $1.13
Thus, The best deal is,
Two 12-inch diameter round pizzas for $17.50
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Help please! The functions f(x)=−3/4x+2 1/4 and g(x)=(1/2)^x+1 are shown in the graph. What are the solutions to −3/4x+2 1/4=(1/2)^x+1? Select each correct answer. −1 1 0 1 2 3
The solution of the functions [tex]f(x) = \frac{3}{4}x + 2\frac{1}{4}[/tex] and [tex]g(x) = (\frac{1}{2})^x + 1[/tex]
is (1.286, 1.41).
What is a function?A function can be defined as the outputs for a given set of inputs.
The inputs of a function are known as the independent variable and the outputs of a function are known as the dependent variable.
Given, Are two functions [tex]f(x) = \frac{3}{4}x + 2\frac{1}{4}[/tex] and [tex]g(x) = (\frac{1}{2})^x + 1[/tex].
We know the solution to f(x) and g(x) is where the two functions intersect.
The graph of the functions intersects at (1.286, 1.41) and hence it is the solution.
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the rectangle below has been divided into unit squares. find the total area of the blue shaded region, in square units. [asy] fill((0,0)--(0,5)--(1,5)--(5,0)--cycle,lightblue); fill((7,0)--(1,5)--(7,5)--cycle,lightblue); for (int i
Angle ECD will therefore be complementary to this and equal 15°
Angle DAQ will be supplementary to this as BAC = 23, which is 90 - 23 = 67.
Additionally, QDA = 90 - DAQ = 23
And because DP = PC, the angle DCP in the triangle DPC equals the angle PDC.
However, since transverse AC parallelizes DC and AB, angle BAC = angle DCP = 23.
PDC also equals 23.
So....
QDA plus PDC is 23 + 23 = 46°.
Keep in mind that the square's side equals the side of the equilateral triangle.
Thus, draw EC
EB = CB in the triangle ECB, and angle CBE is equal to 30°.
However, because EB = CB, ECB, and CEB's opposing angles will be equal.
Both will be equal to = (180 - 30) / 2 = 150 / 2 = 75°.
Thus, angle ECB = 75°.
Angle ECD will therefore be complementary to this and equal 15°.
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UN caballo jala una carreta con una fuerza de 500N y se dezplaza por una pista circular de 10 metros de radio
The angular acceleration of the cart would be (50/m) rad/s².
What is relation between linear velocity (v) and angular velocity (ω)?The relation between the linear and angular velocity is -
v = rω
Given is a cart with a force of 500N and moves along a circular track with a radius of 10 meters
We can write the tangential force as -
F{t} = 500
m a{t} = 500
m dv{t}/dt = 500
m d/dt (rω) = 500
mr dω/dt = 500
dω/dt = 500/10m
dω/dt = 50/m
α = 50/m
Therefore, the angular acceleration of the cart would be (50/m) rad/s².
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{Question in english -
A horse pulls a cart with a force of 500N and moves along a circular track with a radius of 10 meters.}
Two variables, x and y, were measured for a random sample of 25 subjects and two separate regression models were fit to the data. Least squares estimation of the parameters in Model A yielded the following equation and residual plot. Least square estimation of the parameters in Model B yielded the following equation and residual plot. Which of the following conclusions is correct?
Model B is appropriate since the relationship between x and log y is linear. Hence, option E is the correct answer to this question.
The conclusion can be made based on the residual plot of Model B, which shows a linear pattern, indicating a good fit between the model and the data.
On the other hand, the residual plot of Model A shows a non-linear pattern, suggesting that the relationship between x and y may not be well-represented by a linear model.
By taking the logarithm of one or both of the variables, it may be possible to linearize the relationship and obtain a better model fit. Here, Model B, which models the relationship between x and log y, appears to be the more appropriate model.
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The complete question is -
Two variables, x, and y, were measured for a random sample of 25 subjects, and two separate regression models were fit to the data. The least squares estimation of the parameters in Model A yielded the following equation and residual plot. The least squares estimation of the parameters in Model B yielded the following equation and residual plot. Which of the following conclusions is correct?
(a) Model A is appropriate since the relationship between x and y is linear.
(b) Model B is appropriate since the relationship between x and y is linear.
(c) Model A is appropriate since the relationship between log x and log y is linear.
(d) Model A is appropriate since the relationship between log x and y is linear.
(e) Model B is appropriate since the relationship between x and log y is linear.
HELP PLS ASAP WILL MARK BRAINLIEST
Answer:
Below
Step-by-step explanation:
Find AE using similar triangle ratios
AB is to 9 as 6 is to 8
AB / 9 = 6/8
AB = 6.75 AE = AB + EB = 6.75 + 6 = 12.75 cm
Charles McCoy is a manager at a coffee shop, and he has to decide how many workers to hire. One worker can make 20 drinks that sell for $3 on average in one hour. A second worker can make another 18 drinks in one hour. The marginal benefit of each additional worker decreases by two drinks, with each additional hire. Given that workers are paid $15 per hour and have eight-hour shifts, how many employees should Charles hire for each hour?
Charles should hire 20 workers for each hour.
To determine the optimal number of workers to hire, Charles needs to compare the marginal cost and marginal benefit of each additional worker.
The marginal benefit of each worker is the additional number of drinks they can produce multiplied by the average selling price per drink. The marginal cost is the hourly wage of each worker multiplied by the number of hours they work.
Initially, the marginal benefit of the first worker is 20 drinks * $3/drink = $60.
The marginal cost is $15/worker * 8 hours = $120.
The second worker has a marginal benefit of 18 drinks * $3/drink = $54.
The marginal cost is still $120.
For each additional worker hired, the marginal benefit decreases by 2 drinks * $3/drink = $6, while the marginal cost remains constant at $120.
Charles should hire workers as long as the marginal benefit is greater than the marginal cost.
Once the marginal benefit is equal to or less than the marginal cost, it is no longer profitable to hire more workers.
Therefore, Charles should hire workers until the marginal benefit is equal to the marginal cost, which occurs when the marginal benefit is $120.
To find out how many workers will provide a marginal benefit of $120, we set the marginal benefit equal to $120 and solve for the number of workers:
$6 * n = $120
$n = 20
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find the values of x and y.
As per the above given triangles the value of x is 45°.
What is triangle?Three-line segments joined end to end form the geometric shape of a triangle, which exists in two dimensions. These line segments are each referred to as a side, and the three locations where the sides converge are known as vertices. The type of triangle is determined by the angles between the sides and their lengths. Triangles can be classified as being equilateral, isosceles, scalene, right, or acute. The fact that a triangle's internal angles always add up to 180 degrees is just one of the intriguing characteristics of triangles. Triangles are a crucial idea in geometry and mathematics because they can provide the foundation for more complicated shapes and structures.
According to question:
[Since angles made by same chord on circumference are equal]
Sum of angles of triangle is 180°
47°+88°+x=180°
135+x=180
x=45°
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Graph the equation y = |x| +5. Let x = -3, -2, -1, 0, 1,
2, and 3.
X
Find the following y-values. Then choose the correct
graph of the equation to the right.
y
- 3
DEER OPER
ME
Han ASI E
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stbeta Pla
GREEMENT
****
The graph of the equation y = |x| + 5 is given below.
What is Function?A function is a relation from a set A to a set B where the elements in set A only maps to one and only one image in set B. No elements in set A has more than one image in set B.
The given equation is y = |x| + 5.
Set the given values for x and find the corresponding values of y.
When x = -3, y = |-3| + 5 = 8
When x = -2, y = |-2| + 5 = 7
When x = -1, y = |-1| + 5 = 6
When x = 0, y = |0| + 5 = 5
When x = 1, y = |1| + 5 = 6
When x = 2, y = |2| + 5 = 7
When x = 3, y = |3| + 5 = 8
Graph of the equation is given below.
Hence the graph of the equation is found.
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y=2x+c where the coordinate is (k,10) and c is a constant find the value of k
Answer:
k= (10-c)/2
Step-by-step explanation:
y = 2x + c
put x = k and y = 10 in equation
10 = 2k+c
10-c = 2k
(10-c)/2 = k
Use the formula V=s^3 to find the volume of a cube with the sides of length s= 2 1/4 inches
The volume of a cube with sides of length 2(1/4) inches is 11.4 inches³.
What is a cube?It is a polygon having six faces.
The volume of a cube is a side³
We have,
V = s³
s = 2(1/4) inches
s = 9/4 inches
Now,
V = s³
V = (9/4)³
V = 729/64
V = 11.4 inches³
Thus,
The volume of the cube is 11.4 inches³.
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What is the least common denominator of the
four fractions listed below?
20.7
10
203
4
18,000
2018
25
Least common denominator is 100.
What is fraction?Fractions in Math, represent a numerical value that expresses a part of a whole. The whole can be any number, a specific value, or a thing.
Given fractions are,
20 7/10 = 207/10
20 3/4 = 83/4
18 9/10 = 189/10
20 18/25 = 518/25
Common Denominator is 10 × 4 × 10 × 25
= (5 × 2) × (2 × 2) × (5 × 2) × (5 × 5)
Common factor among three numbers are 5 , 2.
Uncommon factors are 5 , 2
Least common denominator = 5 × 2 × 5 × 2 = 100
Hence, 100 is least common denominator of the given fractions.
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What conclusion can you make about quadrilateral ABCD? Why?
The quadrilateral ABCD is a parallelogram as the opposite sides are equal but not a rectangle because all the interior angles are not right angles.
What is a quadrilateral?A quadrilateral is a closed object in geometry that is created by connecting four points, any three of which are not collinear. There are 4 sides, 4 angles, and 4 vertices in a quadrilateral.
To make any conclusion about the quadrilateral we have to look at the lengths of each side by the distance formula [tex]D = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2[/tex].
AB = [tex]\sqrt{(4 - 0)^2 + (2 - 8)^2[/tex].
AB = [tex]\sqrt{16 + 36[/tex].
|AB| = √52.
Similarly, |DC| = √52.
So, AB = DC.
Now, |AD| = √85 and |BC| = √85.
So, AD = BC.
Therefore, The lengths of the opposite sides are equal so it is a parallelogram.
Now, To be a rectangle DC ⊥ CB.
Slope(DC) = 6/- 4 = - 3/2.
Slope(CB) = - 6/ - 7 = 6/7.
So The quadrilateral ABCD is a parallelogram.
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Kyle needs 42 mL of 20% acid solution for a science experiment he has available a 24% solution and 18% solution how many milliliters of the 24% solution how many milliliters of the 18% solution should he mix to make 20% solution 
HELP PLEASE
Kyle needs 0 mL of the 24% solution and 42 mL of the 18% solution to make 20% acid solution.
What is Percentage?percentage, a relative value indicating hundredth parts of any quantity.
Let's call the amount of 24% solution used x, and the amount of 18% solution used y.
We can set up two equations to represent the concentration of the mixture and the total volume of the mixture:
Concentration equation: (0.24 x + 0.18 y) / (x + y) = 0.20
Volume equation: x + y = 42 mL
we can substitute 42 mL for y in the volume equation and solve for x:
y = 42 mL
x = 42 - y = 42 - 42 = 0 mL
So, Kyle needs 0 mL of the 24% solution and 42 mL of the 18% solution to make 20% acid solution.
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Please help asap!!
Try ur best <3
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ITS JUST YES OR NO for the function
Only the third case of an example of a relation being a function.
How to determine if a relation is also a function
Relations are referred to all relationships between two sets, an input set called domain and an output set called range. Relation is also a function, when each element of the domain is related only to one element of the range, that is to say:
If x → f(x₁) and x → f(x₂), then x₁ = x₂.
Now we proceed to determine if each relation is a function:
Case 1 - The relation is not a function since x = 5 is related both to y = 19 and y = 20.
Case 2 - The relation is not a function since x = 7 is related both to y = 15 and y = 10.
Case 3 - The relation is a function.
Case 4 - The relation is not a function since x = - 2 is related both to y = - 2 and y = 3.
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