The height that will minimize the amount of tin that will be required to construct is 4 inches.
Given that,
It is necessary to build a cylindrical, open-top container with a 167 cubic inch volume.
To find : What height will result in the least amount of tin being used to make the can? ?
V = πr^2h. Eq1. And. A =2πr^2 +2πrh. Eq2
From Eq1 h = V/πr2. Eq3
Sub Eq3 into Eq2
Then A = 2πr^2 + 2πr ×(V/πr^2). And V =16π
So A = 2πr^2 + 32π/r
dA / d r = 4πr - 32π/r^2 = 0 at max/ min
r^3 -8 =0
r^3 =8
r= 2. sub into Eq3
h = 16π/ π×2^2
h=4 inches
Therefore, 4 inches is the height that will require the least amount of tin to build.
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HELP PLEASEEE
The right rectangular prism in Figure 6 has been sliced with a plane
perpendicular to BCEH. The resulting slice is a rectangular region
with a height equal to the height of the prism.
a.Label the vertices of the rectangle defined by the slice as WXYZ
b. To which other face is the slice perpendicular?
c. What is the height of rectangle WXYZ
d. Joey looks at WXYZ and thinks that the slice may be a parallelogram that is not a rectangle. Based on what is known about how the slice is made, can he be right? Justify your reasoning.
(picture is below)
The slice was made perpendicular to the face BCEH.
What is a right rectangular prism?The right rectangular prism has four rectangle-shaped lateral faces and two parallel end faces that are perpendicular to each of the bases. Parallelograms make up the faces of an oblique prism, a non-right rectangular prism. Another name for a right rectangular prism is a cuboid.
Given, The right rectangular prism in Figure has been sliced with a plane perpendicular to BCEH.
a. Labeled vertices of the rectangle defined by the slice as WXYZ is shown in the attached picture.b. The slice is perpendicular to the face ADFGc. the height of rectangle WXYZ is:ZY = 6 inch
d. The slice was made perpendicular to the face BCEH. Then we know that the angles in the slice, angles ∠X and ∠Y, formed by the slicing plane and face BCEH, are right angles.If we focus on ∠X of the slice, since it is a right angle, we know that WX must be perpendicular face to BCEH. Wx lies in face of ABCD, which is perpendicular to both BCEH and ABCD, so WX is perpendicular to ABCD.
This means that WX must also be perpendicular to WZ. A similar argument can be made for ∠Yof the slice, making all four angles of WXYZ right angles and making WXYZ a rectangle.
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Anton wants to make 0.5 lb of sugar syrup. How much water and how much sugar does he need to make each concentration of sugar syrup?50
Answer: The number of pounds of sugar in 50% of syrup is 2.5 pounds.
Step-by-step explanation:
What is the percentage?
The percentage is defined as a given part or amount in every hundred. It is a fraction with 100 as the denominator and is represented by the symbol "%".
Given that, Anton wants to make 5 pounds of sugar syrup.
Let x be the number of pounds of sugar.
A) x/5 =50%
x=0.5×5
x=2.5 pounds
B) x/5 =5%
x/5 =0.05
x=0.25 pounds
C) x/5 =75%
x=0.75×5
x=3.75 pounds
D) x/5 =1.5%
x/5 =0.015
x=0.075 ponds
suppose i draw from the population at random with replacement. what is the chance that at least one-third of my first 30 draws are successful?
The probability that all 3 cards are clubs will be 0.0129
To find the chance that all three cards are clubs,
We can use the following formula:
[tex]P(\text{all 3 are clubs}) = \frac{\text{number of favorable outcomes}}{\text{number of possible outcomes}}[/tex]
The number of favorable outcomes is the number of ways to choose 3 clubs from the 13 clubs in the deck, which is given by the given binomial coefficient [tex]{13 \choose 3} = 286[/tex]
The number of possible outcomes is the number of ways to choose 3 cards from the deck, which is given by the binomial coefficient [tex]{52 \choose 3} = 22,!100[/tex]
Therefore, the value of the probability that all 3 cards are clubs is:
[tex]P(\text{all 3 are clubs}) = \frac{\text{number of favorable outcomes}}{\text{number of possible outcomes}} \\= \frac{286}{22,!100} \\\approx 0.0129[/tex]
Rounding to 3 decimal places, the answer is 0.013.
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The complete questions should be:
A standard deck of cards has 52 cards. There are 4 suits clubs, diamonds, hearts, and spades each of which has 13 cards. Suppose you draw 3 cards without replacement. What is the chance that all three are clubs? Round your answer to 3 decimal places
What is the lateral surface area of the rectangular prism below? (Bases are the rectangles on the right and left)
Answer:
112 in
Step-by-step explanation:
Before starting, it is important to know that lateral surface area is the sum of the area of all sides of a figure, not including the bases. Now that that is established, attached is an image with how to find the lateral surface area:
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Have a GREAT day!!!
Gabe went to the amusement park with $40 to spend. His ticket cost $26.50.
whats the inequality
13.50
40 - 26.50 = 13.50 because
50 + 50 is 100, so that's 1.00
26+13=39 + that 1.00 = 40
This is the second part to my other question
Answer:
[tex]y=\dfrac{1}{2}x + 1[/tex]
Step-by-step explanation:
In this question, we are asked for an equation for the graphed line, given the following information about it:
-its slope (rate of change) is 1/2
-its y-intercept (initial value) is 1
We can plug these values into the slope-intercept form equation:
[tex]y=mx+b[/tex]
where [tex]m[/tex] is the line's slope, and b is its y-intercept.
Hence,
[tex]y=\dfrac{1}{2}x + 1[/tex]
greta buys 5 pens for $3.45. how much does each pen cost Helpppppp
Answer: $0.69
Step-by-step explanation: Divide $3.45 by 5 :)
you are dealt five cards from a standard deck of 52. find the probability of being dealt a full house
A “full house” (3 cards of one kind and 2 cards of another kind)
Since there are 13 sets of each type, we have to select any 2 kinds of it.
The probability becomes : 2× ¹³C2 × ⁴C3 × ⁴C2 : ^52C5
On simplification,
= 3744 / 2598960
= 0.00144
So the probability of a “full house” is 0.00144.
DEFINITION OF PROBABILITYProbability is a measure of the probability that an event will occur in future. Probability is expressed between 0 to 1 or in percentage".
There are three important things in discussing probability, namely trials (experiment), result (outcome). and events.
Experiment is an activity that gave birth to an event.For example, the activity of tossing coins will result in the appearance of images or numbers, the activity of buying and selling shares will result in buying or selling events.
Outcome is a result of the experiment. From an experiment will give results.So the outcome is all the possible events that will occur as a result of an experiment or activity.
An event is a collection of one or more outcomes that occur in an experiment or activity.Events show the results that occur from an event. In every experiment or activity there is only one possible outcome. In the activity of buying and selling shares, if you don't buy, it means selling. When prices change, inflation or deflation occurs.
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a truck carries 8000 pounds of cargo how many tons of cargo dose the truck carry
Answer:
4 tons
Step-by-step explanation:
A ton weights 2000 pounds.
The number of tons of cargo the truck carry is 36300 tons.
What is the unitary method?The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value. Unitary method is a technique by which we find the value of a single unit from the value of multiple devices and the value of more than one unit from the value of a single unit. It is a method that we use for most of the calculations in math.
We are given that;
Weight= 8000 pounds
Now,
We can do:
20008000=4
The truck carries 4 US tons of cargo.
Similarly, if we want to use the imperial ton or the metric ton, we can do:
22408000≈3.57
2204.62268000≈3.63
Therefore, by unitary method the answer will be 36300 tons.
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please help find the midpoint of the segment with the given endpoints. (-3,8) and (0,-1). the midpoint is??
Answer:use a plane and then you plot the points then count the spaces then u count to half the spaces and then look for the numbers on the places and then u have the central point.
Step-by-step explanation:
Question 4(Multiple Choice Worth 2 points)
(Linear Relationships MC)
Which linear equation shows a proportional relationship?
Oy=-2x-
Oy=²x-1
Oy = 4x+6
Oy=2x
The linear equation shows a proportional relationship is y = 2x.
What is a linear equation?Each term in a linear equation has an exponent of 1, and when this algebraic equation is graphed, it always produces a straight line. It is called a "linear equation" for this reason.
Both linear equations with one variable and those with two variables exist.
Given the equation to find the linear equation shows a proportional relationship,
A general linear equation can be written as:
y = a*x + b
Where a is the slope and b is the y-intercept.
Particularly, when the y-intercept is equal to zero:
y = a*x
We get a proportional relationship.
so the option for the proportional relationship is
y = 2x
Hence option D is correct.
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please solve for x..
The value for question 5 is 15 and for the question 6 is 10.
Do you know the Chord Theorem?This theorem says that if two chords intersect, the product of its segments will be equal.
The question gives two circles each one with two chords. For solving the exercise, you should apply the Chord Theorem.
Exercise 5Segments of chord 1 = 23 and x
Segments of chord 2 = 23 and 15
Applying the Chord Theorem, you have:
23*x=23*15
23x=345
x=345/23
x=15
Exercise 6Segments of chord 2= x+5 and 28
Segments of chord 2 = 2x and 21
Applying the Chord Theorem, you have:
(x+5)*28=2x*21
28x+140=42x
-42x-28x=-140
-14x=-140
x=-140/-14
x=10
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A restaurant worker used 8 loaves of wheat bread and 3 loaves of rye bread to make sandwiches for an event.Write a ratio that compares the number of loaves of rye bread to the number of loaves of wheat bread
A ratio that compares the number of loaves of rye bread to the number of loaves of wheat bread is 3:8.
What is a ratio?A ratio is a relative size of a value compared to another.
Ratios are given as quotients from division operations between the numerators and the denominators.
Ratios can also be represented as fractional values using decimals, fractions, and percentages.
Most often, the ratio symbol (:) is used to depict the numerical relationships between values.
The number of loaves of wheat bread = 8
The number of loaves of rye bread = 3
The ratio to describe and compare the number of loaves of rye bread to the number of loaves of wheat bread is 3:8
The sum of ratios = 11 (3 + 8).
Thus, relatively, the restaurant worker used 3 loaves of rye bread and 8 loaves of wheat bread to make the sandwiches.
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the actual value of k a is 1.78*10^{-5}. what could be some reasons for the error between our experimental and actual values?
The difference between the experimental Ka and the actual value of Ka could be due to several factors:
Inaccurate measurement of the concentration of acetic acid and sodium acetate.Improper mixing of the ingredients leading to non-homogeneous solution.Temperature variations during the experiment which can affect the reaction rate.Contamination of the solution with other substances that could interfere with the reaction.Improper use of the pH meter leading to inaccurate readings.Interference of other chemical reactions occurring simultaneously in the solution.It is important to control these sources of error in order to obtain more accurate results. Further investigation and repeat experiments may be necessary to confirm the experimental Ka value and minimize the error.
Complete question:
The actual value of Ka is 1.78∗10^−5. What could be some reasons for the error between our experimental Ka = 2.19*10^-5 and actual values? CH3COOH⇋H++CH3COO− To start, we mix the following ingredients in a beaker: 20 ml of 0.02M Acetic Acid 20 ml of 0.02M Sodium Acetate Methyl Red Bromocresol Green The ph was 4.66
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What is the square root of (85+15)?
Answer:
10
Step-by-step explanation:
85+15 is 100
the square root of 100 is 10
Answer
Tha answer is 10 type xhii
Step-by-step explanation:
hope this helps and hope you pass
have a great day/night
I need help math due in one hour
1) The new coordinate of the triangle is gotten by the transformation rule; 180° counterclockwise
2) The coordinates of the point T' are; T'(2, 8)
How to Identify the transformation rule?1) The coordinates of the triangle XYZ are;
X(1, 2), Y(3, 5), Z(-3, 4)
The coordinates of the transformed triangle X'Y'Z' are;
X'(-1, -2), Y'(-3, -5), Z'(3, -4)
The transformation rule here is; (x, y) → (-x, -y)
This is a rotation of 180 degrees counterclockwise about the origin
2) The coordinates of the line are given as;
S(6, -1) and T(2, -8)
A rotation of 210° clockwise gives the transformation rule:
(x, y) → (x, -y)
Thus, we have the new coordinate of T as; T'(2, 8)
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The measures of two angles of a triangle are 25° and 87°. Is the triangle acute, right, or obtuse? Explain.
A.
Acute; the measure of the third angle is 68°. So all three angles are acute.
B.
Acute; the measure of the third angle is 78°. So all three angles are acute.
C.
Obtuse; 25° + 87° = 112° and 112° is an obtuse angle.
D.
Right; 25° + 87° = 112° and 202°
−
112° = 90°.
A total of $10,000 was invested in a college fund for a new grandchild. If the interest rate is 5%,
compounded quarterly, how much will be in the account after 18 years?
The amount in the account after 18 years will be about $24,459.2.
What is Compound Interest?Compound interest is defined as the amount of interest which has been calculated on the principal amount as well as the amount accumulated over the previous period is also included.
Final amount in a compound interest can be calculated as,
A = P (1 + [tex]\frac{r}{n}[/tex] ) ^ (n t)
Here, A is the final amount, P is the principal amount, n is the number times interest is compounded in a year, r is the rate of interest and t is the time in years.
Here, P = $10,000
r = 5% = 0.05
n = 4, since the compounding is quarterly
t = 18 years
Substituting,
A = 10,000 (1 + [tex]\frac{0.05}{4}[/tex])^ (4 × 18)
= 10,000 (1.0125)⁷²
= 24,459.2
Hence there will be an amount of $24,459.2 in the account after 18 years.
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Use the general slicing method to find the volume of the following solid The solid with a semicircular base of radius 15 whose cross sections perpendicular to the base and parallel to the diameter are squares The volume of the solid is _____ cubic units
The volume of the solid with the semicircular base is equal to 2250π units³
What do you mean by integral value ?In general term integral value means the value obtained after integrating or adding the terms of a function which is divided into an infinite number of terms .
Given here: A solid with a semi circular base with radius = 15 units
We know the the equation of the circle with its center at the origin is given by
x²+y²=15²
[tex]y=\sqrt{15^2-x^2}[/tex]
Thus constructing the integral we get
[tex]\int\limits^{15}_{-15} \ \pi .\frac{1}{2}.( {15^2-x^2}} )\, dx[/tex]
=-πx.(x²-675) /6 +C |¹⁵₋ ₁₅
=2250π
Hence, The volume of the solid with the semicircular base is equal to 2250π units³
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Please please help grade 8th math
Answer:
C
Step-by-step explanation:
It's the only graph that doesn't constantly have its y value increasing the same value each time.
(2 to 6 is +4, 6 to 10 is +4, but 10 to 16 is not +4)
Answer:
C
Step-by-step explanation:
Because you see from Point (-4, 2) to (0,6), the y increases by 4, and the x increase by 4. Same thing from (0,6) to (4,10). But from (4,10) to (8,16) the y increase by 6 so it is the wrong slope.
the cables of a suspension bridge are in the shape of a parabola, as shown in the figure. the towers supporting the cable are 600 feet apart and 80 feet high. if the cables touch the road surface midway between the towers, what is the height of the cable from the road at a point 150 feet from the center of the bridge?
The height of the cable from the road at a point 150 feet from the center of the bridge is 12.5 feet.
The equation for a parabolic cable is given by
y = ax^2 + bx + c
where x is the horizontal distance from the center of the bridge, y is the height of the cable from the road and a, b, and c are coefficients determined by the shape of the cable.
The height of the cable at the center of the bridge is 0
so, c = 0
The height of the cable at the towers is 80 feet
so, at x = ±300 feet, y = 80
Plugging in these two points into the parabolic equation, we can solve for a and b.
Using the formula
[tex]y = ax^2 + bx[/tex]
we have two equations:
[tex]80 = a * (300)^2 + b * 300 and 0 = a * (0)^2 + b * 0[/tex]
Solving for a and b, we find that
a = -0.000167 and b = 50
Finally, at x = 150 feet from the center,
the height of the cable from the road is
[tex]y = -0.000167 * (150)^2 + 50 * 150 = 50 - 0.000167 * 22500 = 50 - 37.5 = 12.5 feet.[/tex]
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I need help on this one, i need a quick answer, please!
Answer:
2
Step-by-step explanation:
The solution set of the inequality is the graph B.
What are Linear Inequalities?Linear inequalities are defined as those expressions which are connected by inequality signs like >, <, ≤, ≥ and ≠ and the value of the exponent of the variable is 1.
The given inequality is 3x > 12.
We have to solve the inequality.
3x > 12
Dividing both sides of the inequality by 3, we get,
3x / 3 > 12 / 3
x > 4
Solution set contains all points greater than 4, but not 4.
This solution set is shown in the graph B with the open circle at point 4.
Hence graph B shows the solution set of the inequality.
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A median drawn on the side of an equilateral triangle divides its perimeter into 20 cm and 13 cm parts. Find the length of the sides of the triangle
The length of the sides of the triangle is, 11 cm.
What is mean by Triangle?A triangle is a three sided polygon, which has three vertices and three angles which has the sum 180 degrees.
We have to given that;
A median drawn on the side of an equilateral triangle divides its perimeter into 20 cm and 13 cm parts.
Here, The perimeter of an equilateral triangle = 20 + 13
= 33 cm
Since, The triangle is an equilateral triangle.
Hence, All the sides are equal.
Let the side of an equilateral triangle = x
Hence, We get;
⇒ x + x + x = 33 cm
⇒ 3x = 33 cm
⇒ x = 11 cm
Thus, Each side of an equilateral triangle = 11 cm
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A=√16(16-14)(16-12)(16-6)
what is the height
Answer:
A=√16(16-14)(16-12)(16-6)
what is the height
Pleeeeeeeeeeeeaaaaaaaae help me
Solve by using substitution and graph.
X = 3y + 2
5x - 15y = 10
This system of equations has been solved graphically and by using substitution: it has infinitely many solutions.
How to graph the solution to this system of equations?In order to to graph the solution to the given system of equations on a coordinate plane, we would use an online graphing calculator to plot the given system of equations and then take note of the point of intersection;
x = 3y + 2 ......equation 1.
5x - 15y = 10 ......equation 2.
By substituting equation into equation 2, we have the following:
5(3y + 2) - 15y = 10
15y + 10 - 15y = 10
15y - 15y = 10 - 10 (infinitely many solutions)
Based on the graph (see attachment), we can logically deduce that the given system of equations has infinitely many solutions.
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5) if we randomly select someone who was aboard the titanic, what is the probability that person is a man, given that he died?
If we randomly select someone who was aboard the titanic, what is the probability that person is a man, given that he died is 1360/1517.
Probability is a way to gauge how likely something is to happen. Many things are difficult to forecast with absolute confidence. Using it, we can only make predictions about the likelihood of an event happening, or how likely it is. Probability can vary from 0 to 1, with 0 being an impossibility and 1 denoting a certainty. For pupils in Class 10, probability is a crucial subject since it teaches all the fundamental ideas of the subject. One is the probability of every event in a sample space.
Probability that person is a man, given that he died,
P(x) = Favorable outcome/Total
= 1360/ 1517.
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Pleeeaseee help, even if it’s a only
Lesson is solving rational equations and inequalities
The Speed at which Nick paddles is 13.60 miles per hour.
What is the speed of an object?Speed is the rate at which an object's position changes, measured in meters per second. For example, if an object starts at the origin, and then moves three meters in three seconds, its speed is one meter per second. The equation for speed is simple: distance divided by time
Given here: Nick's speed= S and the current is flowing at a rate of 5 miles per hour.
Now it is given that the it takes 30 minutes longer to row upstream than down stream.
Thus we can construct the equation
8/S-5 -8/S+5 = 30 minutes or 1/2 hour
Where 8 is the distance
Thus solving for S we get
8S+40-8S+40 / S²-25 =1/2
80×2=S²-25
160=S²-25
S²=185
S=13.60 miles per hour
Hence, The Speed at which Nick paddles is 13.60 miles per hour.
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The following graph shows sales at the Used Book Fundraiser at Garfield Elementary. Use it
to answer the following questions.
What is the unit rate?
How did you determine that?
Analyze the point that is given on the graph. What does this point represent in the context of
the situation?
.
The unit rate is equal to 3 dollars per book.
The unit rate can be determined by dividing the total amount of money raised by the number of books sold.
In the context of the situation, the point (6, 18) means 6 books were sold to raise a total amount of $18.
What is the unit rate?In Mathematics, the unit rate is sometimes referred to as unit price and it can be defined as the price that is being charged by a seller for the sale of a single unit of product.
How to determine the unit rate?In order to determine the unit price, we would use the following mathematical expression;
Unit price = Total raised/Number of books sold
Unit price = 6/2 = 12/4 = 18/6 24/8
Unit price = 3 dollars per book.
In conclusion, we can reasonably infer and logically deduce that the point (2, 6) means 2 books were sold at Garfield Elementary to raise a total amount of $6.
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Under her cell phone plan hawa pays
The number of gigabytes of data she can use while staying within her budget is 4.2.
What is an equation?An equation is a mathematical statement that is made up of two expressions connected by an equal sign.
Example:
2x + 3 = 6 is an equation.
We have,
Cost of the flat per month = $51.50
Cost per gigabyte = $3
g = the number of gigabytes.
Now,
Maximum cost per month = $64.10
We can make an equation.
51.50 + 3g = 64.10
Solve for g.
51.50 + 3g = 64.10
Subtract 51.50 on both sides.
3g = 64.10 - 51.50
3g = 12.6
Divide 3 into both sides.
g = 12.6/3
g = 4.2
Thus,
The number of gigabytes she can use is 4.2.
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