The unit kilowatt-hour measures the amount of energy used or produced, whereas the rate at which energy is transformed is measured in kilowatts.
The unit kilowatt-hour (kWh) is a measure of energy, not power. Energy is a measure of the amount of work that can be done, and is usually measured in joules. Power, on the other hand, is a measure of the rate at which energy is transformed, and is usually measured in watts.
A kilowatt-hour is the amount of energy used or produced when a power of one kilowatt is used for one hour. For example, if a 100-watt light bulb is left on for 10 hours, it will have used
100 * 10 = 1000 watt-hours or 1 kilowatt-hour of energy.
So to summarize, the unit kilowatt-hour measures the amount of energy used or produced, whereas the rate at which energy is transformed is measured in kilowatts.
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in the middle school band, there are 5 flutes for every 2 tubas. write the ratio of flutes to tubas, in three different ways. ; 2 to 5; 2:5 ; 5 to 2; 5:2 ; 2 to 5; 2:5 ; 5 to 2; 5:2
The ratio of flutes to tubas in a middle school band is 5 to 2, which represents the number of flutes for every 2 tubas in the band. This ratio can be written in three different ways to express the same relationship between the number of flutes and tubas:
5:2 - This is the fraction form of the ratio, where the number of flutes is written before the colon and the number of tubas is written after the colon.
5/2 - This is the fraction form of the ratio, where the numerator represents the number of flutes and the denominator represents the number of tubas.
2.5 flutes per tuba - This is the rate form of the ratio, where the number of flutes is written as the number of flutes per tuba. This way of expressing the ratio is commonly used to show the average number of flutes for every 1 tuba in the band.
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the following is a geometric sequence, find the missing number? 14, ???, 7406, 170338
Answer:
your pattern is multiply by 23 and your missing number is 322
unos amigos hicieron dos pizzas y se las repartieron en partes iguales y sin que sobre nada a cada uno le toco 2/7 de pizza, entre cuantos amigos se repartieron las pizzas?
El número de amigos que reciben 2/7 de la pizza es de 7 personas.
Por cierto dividimos 2 pizzas con 2/7 = 2 : 2/7 = 7 personas
Definición de comparaciónLas comparaciones en matemáticas también pueden denominarse proporciones.
Entonces, ¿qué es una comparación o razón?
La comparación (razón) es una técnica o forma de comparar dos cantidades.
Escribir proporciones o comparaciones se puede escribir como a : b o a/b donde a y b son dos cantidades que tienen las mismas unidades.
A continuación se explicarán ejemplos de aplicación de comparaciones en la vida cotidiana.
Comparaciones en la vida cotidiana
Hay muchas aplicaciones de la comparación en la vida cotidiana. Escribir la escala en un mapa es una aplicación de la comparación.
Luego, cuando vamos a hacer pan suele haber una mezcla de masa de harina de trigo y harina de tapioca.
Por ejemplo, la proporción es de 2:1, lo que significa que para hacer el pan necesitas 2 partes de harina de trigo y 1 parte de harina de tapioca.
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Koalas sleep for up to 22 hours a day. If a koala went to sleep at 9:40 pm, what time will it probably wake up
Answer:
7:40 PM
Step-by-step explanation:
what is the correct answers
a) The inequality that models this situation is given as follows: 24x ≤ 250.
b) The solution to the inequality is given as follows: x ≤ 10.41.
c) The number of baseballs that can be purchased is of at most 10.
What is a proportional relationship?A direct proportional relationship is defined as follows:
y = kx.
In which k is the constant of proportionality.
As the cost of each baseball is of $24, the constant is given as follows:
k = 24.
The equation giving the total cost of purchasing x baseballs is given as follows:
y = 24x.
The budget to spend is of $250, hence the inequality is given as follows:
24x ≤ 250.
The solution is given as follows:
x ≤ 250/24
x ≤ 10.41.
As the number of baseballs is a countable amount, at most 10 baseballs can be purchased, rounding down the amount.
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4 times the difference of x and 2
Answer:
The answer can be written in multiple forms
[tex]4 \left(x-2 \right)[/tex] or [tex]4x-8[/tex]
Step-by-step explanation:
Given "4 times the difference of x and 2".
"Times" is multiplication and can be expressed as *
"the difference of x and y" can be expressed as (x -y)
Therefore in this example we can write
[tex]4 \left(x-2 \right)[/tex]
We can leave it as is or simplify it further.
We can simplify it by applying the distributive property.
Distribute the 4.
[tex](4*x)-(4*2)[/tex]
[tex]4x-8[/tex]
which of the following is true about graphical data? question 9 options: a) all graphs should start at the origin. b) an equation of the best-fit line of data can be used to estimate untested values. c) graphical correlations always have a positive relationship. d) the x-values of a graph can be estimated based on the y-values. e) all data on a graph should be linear.
The correct answer is B) an equation of the best-fit line of data can be used to estimate untested values.
The equation of the best-fit line of data can be calculated by determining the slope (m) and the y-intercept (b) of the line. It is calculated by using the linear regression equation: y = mx + b, where m is the slope and b is the y-intercept. The slope is determined by the equation: m = (Σxy)/(Σx2). The y-intercept is determined by the equation: b = (Σy - mΣx)/n. Once these values are determined, it is possible to estimate untested values with the equation of the best-fit line. For example, if we have a graph with data points (2, 3) and (4, 7), the equation of the best-fit line would be y = 2x + 1. This equation can be used to estimate the value of y when x = 6; in this case, y = 11.
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how many different prime numbers are factors of the positive integer n ? (1) four different prime numbers are factors of 2n (2) four different prime numbers are factors of n2
A prime number doesn't have sequence so, it cannot be model with sequence.
Prime numbers are number that can only be divided by itself and 1.
E.g 2,3,5,7,11,13,17,19,23,29 etc.
So, note that this sequence doesn't have a pattern, it is neither Geometry Progression nor Arithmetic Progression.
Now, let take look at the model given
If n is prime, then 2n-1 is prime
Let take 5 for
n=5 is a prime number
2n-1=2(5)-1=10-1=9
9 is not a prime number so the model doesn't work
A prime number doesn't have sequence so, it cannot be model with sequence.
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A caterpillar eats 1400%, percent of its birth mass in one day. The caterpillar's birth mass is m grams.
Which of the following expressions could represent the amount, in grams, the caterpillar eats in one day? (Choose 2 answers)
A) 140m B)1400m C)14m D)1400/100m E)1.4m
The expression that represents the amount in grams the caterpillar eats in one day is C) 14m
What is the percentage?A percentage is a value per hundredth. Percentages can be converted into decimals and fractions by dividing the percentage value by a hundred.
Let, The birth mass of the caterpillar be 'm'.
Given, It eats 1400%, percent of its birth mass in one day.
Therefore, The equation representing the amount, in grams, the caterpillar eats in one day is,
= (1400/100)×m.
= 14×m.
= 14m.
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can the method of equivalent pipes be used to find a single hypothetical pipe that is equivalent to the pipe system of problem 3.12.6? if your answer is yes, determine an equivalent pipe. if your answer is no, explain your answer.
No, the method of equivalent pipes cannot be used to find a single hypothetical pipe that is equivalent to the pipe system of problem 3.12.6.
This is because the method of equivalent pipes is used to combine two or more pipes into one pipe to simplify a system. In problem 3.12.6, the given system already consists of only one pipe. Therefore, it is not possible to use the method of equivalent pipes to determine an equivalent pipe.The method of equivalent pipes is used to calculate the head losses for a system of pipes with multiple branches and junctions, using the Loss Coefficient Method and Hazen-Williams Equation. The method of equivalent pipes allows us to convert a complex pipe network into an equivalent pipe with a single diameter and length. However, this method cannot be used for a pipe system with no branches and junctions, such as the one in problem 3.12.6.
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Answer the following questions for
f(x) = -x^4 + x^3 - 7x^2 + 9x + 18
A.) How many total zeros does this function have? Explain how you know. (1 point)
B.) Using p/q, list all possible rational zeros. (3 points)
C.) Using Descartes' Rule of Signs, how many possible positive, negative, and complex (imaginary) zeros are possible... list all possibilities. It would be helpful to make a table (4 points)
D.) Describe the end behavior of this graph. (2 points)
All the possible values of the polynomial are given below, with the complete explanation.
What is a polynomial?An expression that consists of variables, constants, and exponents that is combined using mathematical operations like addition, subtraction, multiplication, and division is referred to as a polynomial.
Given:
We have a function polynomial,
f(x) = -x⁴ + x³ - 7x² + 9x + 18.
A). The degree of the polynomial is 4.
That means, it has 4 zeros.
B). Using p/q:
The factor of constant term 18 are ±2, ±3, ±6, ±9, ±18.
The factor of leading coefficient -1 are ±1.
Now, by p/q,
all possible rational zeros = ±2, ±3, ±6, ±9, ±18.
C). Using Descartes' Rule of Signs,
There are 3 times the sign changes for the positive and negative both times.
So, the possible positive number of roots are 3 or 3-2 = 1.
The possible negative number of roots are 3 or 3-2 = 1.
And the complex roots comes in the pair.
So, there are 2 possible complex roots if there is only a negative and a positive roots.
D). From the attached graph,
the end behavior of the polynomial is negative infinity.
Therefore, all the required values are given above.
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-19 + ? = -48 Determine the unknown addend
Answer:
? = -29
Step-by-step explanation:
-19 + x = -48
x= -48 + 19
x = -29
Answer:
? = -29
Step-by-step explanation:
To figure out the unknown value, start by adding -19 to both sides to leave the unknown by itself.
? = -48 + 19
Negative numbers count down, so -48 + 19 = -29
I hope this helped!! :)
Marco wants to invest his savings in a bank for 3 years. He has $15000 to invest and receives offers from two banks
The solution is, the Bank of Peace will pay Marco more in interest over the 3-year period, Marco should choose the Bank of Peace to get the most interest, the total amount of interest that Marco will earn from the Bank of Trust over the 3-year period is, = £870.
What is interest?Interest is the price you pay to borrow money or the cost you charge to lend money. Interest is most often reflected as an annual percentage of the amount of a loan. This percentage is known as the interest rate on the loan.
here, we have,
To determine which bank will give Marco the most interest over the 3-year period, we need to calculate the total amount of interest that each bank will pay Marco over the 3 years.
First, let's consider the Bank of Peace.
Since the interest rate is 2.5% per year and is compounded annually, Marco will earn 2.5/100 * £15000 = £375 in interest in the first year. In the second year, the interest will be calculated on the original £15000 plus the £375 of interest earned in the first year, for a total of £15000 + £375 = £15375.
So Marco will earn 2.5/100 * £15375 = £383.44 in interest in the second year. In the third year, the interest will be calculated on the original £15000 plus the £375 of interest earned in the first year and the £383.44 of interest earned in the second year, for a total of
£15000 + £375 + £383.44 = £15728.44.
So Marco will earn 2.5/100 * £15728.44 = £391.71 in interest in the third year.
Therefore, the total amount of interest that Marco will earn from the Bank of Peace over the 3-year period is £375 + £383.44 + £391.71 = £1150.15.
Now let's consider the Bank of Trust. In the first year, Marco will earn 3.8/100 * £15000 = £570 in interest.
In the second year, the interest rate is 1%, so Marco will earn 1/100 * £15000 = £150 in interest. In the third year, Marco will also earn £150 in interest.
Therefore, the total amount of interest that Marco will earn from the Bank of Trust over the 3-year period is £570 + £150 + £150 = £870.
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y=−2x+2
4x+2y=4
Substitute the resulting expression in the other equation
Answer:
In this section we will discuss the method of graphing an equation in two variables. In other words, we will sketch a picture of an equation in two variables.
Step-by-step explanation:
the probability of rolling a 6 on a biased dice is 1/5
The probability of rolling two sixes is 1/25.
What is the probability?Probability can be defined as the ratio of the number of favourable outcomes to the total number of outcomes of an event.
We know that, probability of an event = Number of favourable outcomes/Total number of outcomes
Given, the probability of rolling a 6 on a biased dice is 1/5.
Since the probability of rolling a six on the first roll is 1/5, then probability of not rolling a six on first roll is;
P(not 6) = 1 - 1/5
P(not 6) = 4/5
A) Please find attached the completed tree diagram
B) First Roll:
P(6) = 1/5
P(not 6) = 4/5
Second Roll:
Now,
P(6 | 6) = 1/5 × 1/5
= 1/25
P(6 | not 6) = 1/5 × 4/5
= 4/25
So, P(not 6 | 6) = 4/5 × 1/5
= 4/25
P(not 6 | not 6) = 4/5 × 4/5
= 16/25
Therefore, the probability of rolling two sixes is 1/25.
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"Your question is incomplete, probably the complete question/missing part is:"
The probability of rolling a 6 on a biased dice is 1/5
1) complete the tree diagram.
2) Work out the probability of rolling two sixes.
WILL GIVE BRAINLIST!! please show all work
What is the arc length of an arc with a central angle of 11r/6 radians in a circle with a radius of 18cm? Round to the nearest whole number
[tex]\textit{arc's length}\\\\ s = r\theta ~~ \begin{cases} r=radius\\ \theta =\stackrel{radians}{angle}\\[-0.5em] \hrulefill\\ \theta =\frac{11\pi }{6}\\[1em] r=18 \end{cases}\implies s=18\cdot \cfrac{11\pi }{6}\implies s=33\pi \implies s\approx 104~cm[/tex]
Astronomers study radio waves to learn about the universe. Why might radio waves be used to study objects in space?(1 Point)
They are sound waves that cause vibrations in stars and planets.
They are electromagnetic waves, so they don't require a medium.
They are mechanical waves that pass through interstellar particles.
They are longitudinal waves, which create compressions in the fabric of space.
a high school has 44 44 players on the football team. the summary of the players' weights is given in the box plot. approximately, what is the percentage of players weighing less than or equal to 233 233 pounds?
The percentage of players weighing less than or equal to 233 pounds is 88.04%.
Percentage
A percentage is a number or ratio that can be expressed as a fraction of 100. If we have to calculate percent of a number, divide the number by the whole and multiply by 100. Hence, the percentage means, a part per hundred. The word per cent means per 100. It is represented by the symbol “%”.
See attachment for box plot,
From the box plot, the maximum is ,
Max = 244
the maximum is.
Min = 152
Percentage less than 233 is calculated as:
percentage = (233 - min)/ max - min
percentage = (233 - 152)/ 244 - 152
percentage = 81/92
express as percentage,
= 81/92 *100
= 8100/92
= 88.04%
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Answer: 75%
Step-by-step explanation: got it right
The graph of f(x) is shown on the grid below.
Sketch a graph of f (2x) on the same set of axes.
State the domain of the two functions:
Domain of f(x):
Domain of f(2x):
The domains of the functions are [-8, 6] and [-16, 12]
Sketch a graph of f (2x) on the same set of axes.See attachment for the graph of the function f(2x)
State the domain of the two functionsFrom the graph, we have the following parameters that can be used in our computation:
The x values of f(x) start from -8 and ends at 6
This means that
Domain of f(x): [-8, 6]
For f(2x) after the dilation. the domain is
Domain of f(2x):[-16, 12]
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Who can help me solve:
10*2^n>1000+500n
The solution to the inequality 10 x 2^n > 1000 + 500n is given as follows:
n < -1.995 or n > 9.119.
When a function is positive?The intervals for which a function is positive are the intervals for which the function graph lies above the x-axis.
The inequality for this problem is given as follows:
10 x 2^n > 1000 + 500n
Moving everything on the expression to the left side, the inequality is given as follows:
10 x 2^n - 1000 - 500n > 0.
Hence the function that we must obtain where it is positive is given as follows:
f(n) = 10 x 2^n - 1000 - 500n.
From the image given at the end of the answer, the interval is given as follows:
n < -1.995 or n > 9.119.
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Short answer needed ASAP
The surface area of the prism is 142 square in
How to determine the surface areaFrom the question, we have the following parameters that can be used in our computation:
The net of a rectangular prism
The surface area of the prism is the sum of the individual shapes that make up the net
Using the above as a guide, we have the following:
Surface area = 2 * 7 * 3 + 2 * 5 * 3 + 2 * 5 * 7
Evaluate the sum of products
Surface area = 142
Hence, the surface area is 142 square in
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Please help me really fast need to answer fast
PLSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS HELP
Answer:
MN = 9
Step-by-step explanation:
You want MN if KL : LM : MN = 2 : 3 : 1 and KN = 54.
FractionThe fraction of the total length that is segment MN is ...
MN/KN = 1/(2+3+1) = 1/6
Multiplying by KN, we have ...
MN = 1/6·KN = 1/6·54 = 9
The length of MN is 9.
markov chain eventually, the process will end up in state 2. what is the probability that when the process moves into state 2, it does so from state 1?
I need to turn a quadratic equation into standard form, but it looks weird. The equation is y = 11 (3x^2 + 5). I'm trying to turn it into y = ax + bx + c format. I understand that concept in general, but how do I deal with the squared 3 in the place of b? Help me.
Answer:
y = 33X^2 + 55
Step-by-step explanation:
by expanding the equation you provided, we will get the answer
be reminded, the general form of a quadratic equation us,
y =ax^2+bx+c
A triangular pathway in a park is shown below. what is the approximate total length of the path ( the perimeter of the triangle)? Round answer to the nearest hundreth
The perimeter of the triangle is given by the equation P = 42.588 m
What is a Triangle?A triangle is a plane figure or polygon with three sides and three angles.
A Triangle has three vertices and the sum of the interior angles add up to 180°
Let the Triangle be ΔABC , such that
∠A + ∠B + ∠C = 180°
The area of the triangle = ( 1/2 ) x Length x Base
For a right angle triangle
From the Pythagoras Theorem , The hypotenuse² = base² + height²
if a² + b² = c² , it is a right triangle
if a² + b² < c² , it is an obtuse triangle
if a² + b² > c² , it is an acute triangle
Given data ,
Let the perimeter of the triangle be represented as P
Let the right triangle be represented as ABC
Now , the hypotenuse of the triangle is AC = 18m
And , the measure of ∠ACB = 30°
From the trigonometric relations ,
Let the angle be θ , such that
sin θ = opposite / hypotenuse
Substituting the values in the equation , we get
sin 30° = AB / 18
On simplifying the equation , we get
Multiply by 18 on both sides of the equation , we get
sin 30° = 1/2
AB = 18/2
The opposite side of the triangle AB = 9 m
Now , the base of the triangle BC is calculated from Pythagoras theorem
hypotenuse² = base² + height²
So , base BC² = ( 18 )² - ( 9 )²
The base of the triangle BC = √ ( 324 - 81 )
The base of the triangle BC = 15.588 m
Now , the perimeter of the triangle P = opposite side of the triangle AB + base of the triangle BC + hypotenuse of the triangle AC
The perimeter of the triangle P = 18 + 9 + 15.588
The perimeter of the triangle P = 42.588 m
Hence , the perimeter of the triangle is 42.588 m
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Draw a diagram and explain how you can use it to find 3 ÷ 1/5
Answer:
15
--- = 15
1
Step-by-step explanation:
keep change flep
Complete the table for the function and its inverse.
1. f(x) = 3x + 2
2.f^-1(x)=1/3(x)-2/3
Compare the domain and range for the two tables above.
The domain and the range of the function and its inverse is increasing.
How to complete the table?In order to use the given linear function to complete the table, we would have to substitute each of the values of x (x-values) into the linear function and then evaluate as follows;
When the value of x = -1, the linear function is given by;
f(x) = 3x + 2
f(-1) = 3(-1) + 2
f(-1) = -1.
When the value of x = -2/3, the linear function is given by;
f(x) = 3x + 2
f(-2/3) = 3(-2/3) + 2
f(-2/3) = 0.
When the value of x = -1/3, the linear function is given by;
f(x) = 3x + 2
f(-1/3) = 3(-1/3) + 2
f(-1/3) = 1.
When the value of x = 1/3, the linear function is given by;
f(x) = 3x + 2
f(1/3) = 3(1/3) + 2
f(1/3) = 3.
When the value of x = -1, the inverse function is given by;
f⁻¹(x) = 1/3(x) - 2/3
f⁻¹(-1) = 1/3(-1) - 2/3
f⁻¹(-1) = -0.9999
When the value of x = 0, the inverse function is given by;
f⁻¹(x) = 1/3(x) - 2/3
f⁻¹(0) = 1/3(0) - 2/3
f⁻¹(0) = -2/3.
When the value of x = 1, the inverse function is given by;
f⁻¹(x) = 1/3(x) - 2/3
f⁻¹(1) = 1/3(1) - 2/3
f⁻¹(1) = -1.
When the value of x = 3, the inverse function is given by;
f⁻¹(x) = 1/3(x) - 2/3
f⁻¹(3) = 1/3(3) - 2/3
f⁻¹(3) = 1/3.
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HELP PLEASE ASAP!!!!!!!!
The experimental probability that Dave works will be in a wedding in next week is 7 / 22.
What is experimental probability?Actual experiments and sufficient documentation of the occurrence of occurrences serve as the foundation for experimental probability, sometimes referred to as empirical probability. A number of real experiments are carried out in order to ascertain the likelihood of any event. Random experiments are studies that don't have a predetermined outcome. The results of such experiments are unpredictable. The likelihood of random experiments is calculated repeatedly. A trial is a repeating of an experiment that is performed a certain number of times.
The probability that Dave will work in a wedding is given as:
P = Working in wedding / Sum of total work
P = 14 / 44
P = 7 / 22
Hence, the experimental probability that Dave works will be in a wedding in next week is 7 / 22.
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a fair, six-sided die is rolled repeatedly until either two prime numbers or two even numbers are rolled. what is the expected number of ones that are rolled?
The probability number of times to roll the number cube to result in a prime number 12 times is 24
How to determine the number of times?
The given parameters are:
Number cube = 6 sides
Number of times= 12
The probability of obtaining a prime number in a six-sided die is:
P(Prime) = 3/6
The number of times (n) is then calculated as:
p * n = 12
Substitute known values
3/6 * n = 12
Evaluate the fraction
1/2 * n = 12
Multiply both sides by 2
n = 24
Hence, the number of times is 24
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