What's the formula for finding the surface area of a prism and the formula for the surface area of a triangular prism??

Answers

Answer 1
the surface area of any prism is the total area of all its sides and faces. A triangular prism has three rectangular sides and two triangular faces. To find the area of the rectangular sides, use the formula A = lw, where A = area, l = length, and h = height.

The formula  A=1/2 bh 
Answer 2

Answer:

i) The general formula to find the surface area of a prism = ph + 2B

ii) The area of the triangular prism = ph + 2([tex]\frac{1}{2} bh[/tex])

Step-by-step explanation:

A prism is a three-dimensional figure. The surface area of a figure is the sum of all the areas of its sides.

For example, rectangular prism has 6 sides, to find the surface of rectangular prism, we need to find the area of each side and add them together to get the surface area.

So, the general formula to find the surface area of a prism = ph + 2B, where "p" is the perimeter of the base, "h" is the height of the prism and B is the area of the base.

Now let's find the area of triangular prism.

In the triangular prism, there are two triangles and three rectangles.

Area of a triangle = [tex]\frac{1}{2} bh[/tex]

So, the area of the triangular prism = ph + 2([tex]\frac{1}{2} bh[/tex])


Related Questions

Approximate the value of 5 pie

Answers

Slightly more than 15
Pi is equal to 3.14159265358979... (and so on, because it's an irrational number).

We can see that pi is a little bit more than 3. Multiplying this times 5 gives a lil bit more than 15.

D

Suppose a bay window is a perfect semicircle with an area of 4.5 square feet. If the architect wants to use a scale of 0.5 inch = 1 ft on the floor plan, what is the radius of the bay window on the floor plan?
A) 0.85 inches
B) 1.7 inches
C) 3 inches
D) 3.4 inches

Answers

The answer is A) .85 inches

Step-by-step explanation:

A =  

1 /2 πr2 4.5 =  1 2 πr2  1.6926 = r

  thus, 0.50 in  

1 ft  =  x in 1.6926 ft x = 0.8463

Final answer:

To find the radius of the bay window on the floor plan, calculate the radius of the actual bay window first, apply the scale factor, resulting in a radius of 3.4 inches that is option D is correct.

Explanation:

To find the radius of the bay window on the floor plan, you need to calculate the radius of the actual bay window first. Given the area of the bay window as 4.5 square feet in a semicircle shape, you can use the formula for the area of a semicircle, A = 1/2 * π * r².

Once you find the actual radius, you can then convert it to the scale of 0.5 inch = 1 ft to determine the radius on the floor plan. Remember, the scale factor is the ratio of a length on the drawing to the actual length it represents.

After the calculation, the radius of the bay window on the floor plan is 3.4 inches (Option D).

Julie works for 48 hours per week for 12 weeks during the summer, making $5000. If she works for 48 weeks during the school year at the same rate of pay and needs to make another $5000, how many hours per week must she work?

Answers

Since she only needs to make the same amount of money, if she works for 4 times as many weeks, she can work 4 times fewer hours per week, meaning she can work 1/4*48= 12 hours per week.

During the academic year, Julie needs to put in about 12 hours per week of work to earn an additional $5,000 at the same rate of compensation.

To find out how many hours per week Julie must work during the school year to make another $5000,

set up a proportion using the information we already have.

Let's use the ratio of her earnings to the number of hours worked to create the proportion.

During the summer:

Earnings = $5000

Hours worked = 48 hours/week

Weeks worked = 12 weeks

Summer rate of pay = Earnings / (Hours worked × Weeks worked)

Summer rate of pay = $5000 / (48 hours/week × 12 weeks)

Summer rate of pay = $5000 / 576 hours

Summer rate of pay ≈ $8.68 per hour (rounded to two decimal places)

Now, during the school year, she needs to make another $5000.

So, set up the proportion:

School year earnings = $5000

School year rate of pay = $8.68 per hour (same as the summer rate)

School year rate of pay = School year earnings / (Hours worked × Weeks worked)

$8.68 per hour = $5000 / (Hours worked × 48 weeks)

Now, solve for the number of hours worked per week during the school year:

Hours worked × 48 weeks = $5000 / $8.68 per hour

Hours worked × 48 weeks = 576.036

Hours worked ≈ 12 hours per week (rounded to the nearest whole number)

Therefore, Julie must work approximately 12 hours per week during the school year to make another $5000 at the same rate of pay.

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A Ford is traveling 20 mph slower than a Buick. The Buick is traveling at a rate of 65 mph. Let F = the the speed of the Ford. Which formula below would correctly calculate the speed of the Ford?

Answers

Answer: The formula to find the speed of the Ford could be F = B - 20.

Since the Ford is 20 mph slower than the Buick, all you have to do is subtract 20 from the speed of the Buick. We know the speed of the Buick, it is 65.

Therefore, the speed of the Buick is 65 - 20 or 45 mph.

A figure has a vertex at the point (-4, -6) the figure is dilated with the center at the Irgun with a scale factor of 5

Answers

You multiply the x and y by 5. You should get (-20, -30). Hopes this helps!

The formula for electrical power is p=iv Which is the equivalent equation solved for i?

Answers

we are given

[tex] p=v*i [/tex]

Since, we have to solve for i

so, we will isolate i on anyone side

we can divide both sides by v

[tex] \frac{p}{v}= \frac{vi}{v} [/tex]

[tex] \frac{p}{v}= i [/tex]

[tex] i=\frac{p}{v} [/tex]..............Answer


Answer:

p/v=I

Step-by-step explanation:

hope i helped. :} its also on edge

List three values that make this inequality true 3n≤18

___,___,___

Answers

To make this easier on us, we can solve this inequality.
18/3=6
N is less than or equal to 6. So any number less than 6 would work.
Although there’s infinite values that could make this true, I will list only 3.
6,0,-6
Since it can be equal to, 6 would work. For 0 and -6, they’re both less than 6 so they would work.

The three values that make this inequality true 3n ≤ 18 are 6, 5, and 4.

We have,

To find three values that make the inequality 3n ≤ 18 true, we can simply substitute different values of n and check if the resulting statement is true or false.

Here are three values that satisfy the inequality:

n = 6:

3n = 3(6) = 18, which is equal to the upper bound of the inequality. Therefore, 3n ≤ 18 is true for n = 6.

n = 5:

3n = 3(5) = 15, which is less than 18. Therefore, 3n ≤ 18 is true for n = 5.

n = 4:

3n = 3(4) = 12, which is less than 18. Therefore, 3n ≤ 18 is true for n = 4.

Note that there are infinitely many values of n that satisfy this inequality, but these three values are enough to demonstrate that the inequality is true for at least three specific values of n.

Thus,

The three values that make this inequality true 3n ≤ 18 are 6, 5, and 4.

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A Gardener has 560 feet of fencing to fence in a rectangular garden. One side of the garden is bordered by a river so it does not need any fencing. What dimensions would guarantee that The Gardener has the greatest possible area

Answers

The dimensions that give the largest possible area are 186 by 187, with an area of 34,782ft².

To maximize area and minimize perimeter, you make the figure as close to equilateral as possible.  560/3 = 186 2/3.  We would rather use whole number dimensions, so we would have 186 for one side.  560-186 = 374.  374/2 = 187 for the other dimension.

Answer:

Each side of the garden should be 186.67 feet

Step-by-step explanation:

We know that the biggest area of a rectangular prism is when it closer to a square, and we know that a square is a special kind of rectangle with all equal sides, so we want all the sides to be equal.

To do this we know that the Gardener has 560 feet of fencing and he is only going to fence 3 sides because the other side is bordered by a river.

So we have to divide the fencing by the sides to have equal sides:

560 feet / 3 sides = 186.67 feet per side.

So the garden will be a square with each side of 186.67 feet, and the area will be:

186.67 * 186.67 = 34,845.70 square feet.

Consider U = {x|x is a positive integer greater than 1}.


Which is an empty set?


{x|x ∈ U and 1/2 x is prime}


{x|x ∈ U and 2x is prime}


{x|x ∈ U and 1/2 can be written as a fraction}


{x|x ∈ U and 2x can be written as a fraction}

Answers

Answer: {x|x ∈ U and 2x is prime} is an empty set.

Justification:

U = {x|x is a positive integer greater than 1} = {2, 3, 4, 5, 6, ...}


1) {x|x ∈ U and (1/2) x is prime}

Take x = 4 => (1/2) 4 = 4 / 2 = 2 = prime, so this is not empty.


{x|x ∈ U and 2x is prime}

2) 2x = {4, 6, 8, 10, 12, } so none of them is prime, hence this is an empty set.

3) {x|x ∈ U and (1/2) x can be written as a fraction}

Take any x that is odd. For example x = 3

=> (1/2)x = (1/2)3 = 3/2 which is a fraction, so this is not an empty set.


2) {x|x ∈ U and 2x can be written as a fraction}

Take any value of x, for example x = 7 => 2 = 14, and 14 = 28 / 2 so this is not an empty set.


Answer:

{x|x ∈ U and 2x is prime}

Step-by-step explanation:

got 100%

Courtney has $4.95 in nickels, quarters, and dimes. She has12 quarters and 9 nickels. How many more dimes than nickels does she have?
A. 15
B. 10
C. 6
D. 4

Answers

The answer to this is C. 6

You have to find the value of the coins that you have now. Then you add them. Next, you subtract that value from the original total of 4.95. After that, you take that amount and divide it by the value of a dime. Lastly, you subtract the number of nickels from the number of dimes. 
So 12x.25=3 and 9x.05=.45
3+.45=3.45
4.95-3.45=1.5
1/5/.10=15
15-9=6
The answer is 6.

Final answer:

Calculate the difference in the number of dimes and nickels to find out how many more dimes Courtney has. The solution involves determining the total value of quarters and nickels, finding the number of dimes, and subtracting to get the difference. There are 6 more dimes than nickels.

Explanation:

To find how many more dimes Courtney has than nickels:

Calculate the value of quarters: 12 quarters * $0.25 = $3.00

Calculate the value of nickels: 9 nickels * $0.05 = $0.45

Subtract the total value of quarters and nickels from the total amount: $4.95 - $3.00 - $0.45 = $1.50

Since each dime is $0.10, divide $1.50 by $0.10 to find the number of dimes Courtney has: $1.50 / $0.10 = 15 dimes

Calculate the difference between the number of dimes and nickels: 15 dimes - 9 nickels = 6 more dimes than nickels

Therefore, Courtney has 6 more dimes than nickels.

Sergei says that 10% of a number will always be less than 20% of any other number.

Answers

Hi there!

This isn't true, because if you were to take 10% of, let's say, 100 (which is 10), and if you were to take 20% of 20 (which is 5), 5 is still smaller than 10. 

Hope this helps!

Which of the following Has a value of 8(4)

A) 4,096
B)32
C)83
D)512

Answers

B)32

8(4) means to multiply 8 and 4.  8 x 4 = 32
The answer is B

8(4) = 8 x 4

8 x 4 = 32

De una botella de 4 L se utilizaron 2 4/5. ¿Cuánto aceite queda?

Answers

LygvvhxhxAaaKakajannsjsndnndndd

A right triangle had one leg of length 84 units. The hypotenuse is 91 units long. What is the length of the other leg?
HELP ASAP FOR BRAINLIEST (:

A. 49 Units
B. ^(178 units
C. 7 Units
D. 35 Units

Answers

When i solved the problem i got 35. i did 91 to the second power equals 84 to the second power plus x to the second and the answer was 35.. hope this was right!!
This should be D. 35 because the equation is a squared plus b squared = c squared then you just substitute

A fair charged $2.50 admission for adults and a dollar for children. The receipts for 1 day were $1951 on 1300 paid admissions. How many adults attended the fair that day?

Answers

x = adults
y = children

x + y = 1300
2.5x + y = 1951 Subtract these two equations.
-1.5x = - 651 
x = -651/-1.5
x = 434 Adults

y = 1300 - x
y = 1300 - 434
y = 866 children

Assumed all children
1300 x 1 = $1300

Extra collection:
1951 - 1300 = $651

Difference in price = $2.50 - $1.00 = $1.50

$651 ÷ 1.5 = 434 adults

1300 - 434 = 866 children

Ans: 434 adults and 866 children

Douglas is placing strings of lights around the edge of a circular patio with a diameter of 7.5 meters. The lights are in lengths of 1.45 meters.

What is the best approximation for how many strings of lights Douglas needs?

Use 3.14 to approximate for π .

A. 5

B.11

C.17

D.122

Answers

Maybe about 17 meters or 11. I can't remember the equation to use. I'm sorry.

Answer: C: 17


Step-by-step explanation:


The solution to 5.2x = 14.04 is x = ___.

0.37
2.7
8.84
73.01

Answers

5.2x = 14.04
     x = 14.04 / 5.2
     x = 2.7

answer
2.7
The answer to this is 2.7

Jane is thinking of a number between -10 and 10. if you multiply Jane's number by -2, then subtract 2, the result is greater than 6. What is Jane's number

Answers

-10 works and so does -9,-8,-7,-6, and -5
Your answer could be 8

what is the area of square HIJK

Answers

the perimeter is 36 and the area is 81 units
hope this helps:)
multiple the length x width x height

10y-12=4
Help??? Confused??? Trying to make this twenty letters long lol

Answers

if you need to solve for y
10y-12=4
10y=12+4
10y=16
y=16/10=8/5=1 3/5 or 1.6
y=16/10=8/5=1 3/5 have good day

Calculate the MADs for the teachers' scores. Did the teachers make progress in standardizing the scores?

Answers

The teacher made progress in standardizing the test scores from the beginning of the year to the end. The MAD tells us this because the difference in the teachers scores from the mean is less at the end.  The Mean Absolute Deviation is a measure of variability, and the smaller the number, the less variability there is in the answers.  So, in this example there are more scores closer to the average than when they first graded the essays.

Use benchmarks to choose the customary unit you would use to measure each height of a computer with a fit length of a semi truck the amount of liquid a bathtub holds.

Answers

Answer: See below.

For the height of a computer, it would be best to use inches. Most screens would be about 10 -15 inches.

For the length of a semi-truck, we could use feet or yards. Inches would be too small and miles would be way too long.

For the amount of liquid in a bathtub, we should use gallons.

Final answer:

Choose the best units of measurement for a variety of items based on benchmarks and size considerations.

Explanation:

When considering the size of a bathtub, the best unit for measuring capacity would be liters.

To choose the best unit of measurement for each item:

The volume of a water balloon: Milliliters

The length of a basketball court: Yards

The weight of an apple: Ounces or grams

The volume of a milk carton: Cubic centimeters

For the height of a light switch, the appropriate unit would be inches.

For the width of a refrigerator, the appropriate unit would be feet.

In a school library, 52% of the books are paperback. If there are 2,658 books in the library, how many of them are nit paperback to the nearest whole number?

Answers

48% of 2,658
48/100 x 2,658
= 1275 books are not paperbacks.

An isosceles triangle has a base of 8 feet and a height of 6 feet. What is the length of one of the two congruent sides? Work and a diagram would be appreciated using the Pythagorean Theorem

Answers

8^2 + 6^2 = c^2 (a^2 + b^2 = c^2)
64 + 36 = 100
square root of 100 = 10
The third side is 10 feet. 

4x7/8 will be —————7/8 is it greater than or equal or less than

Answers

4/1 x 7/8 = 28/8 = 3 4/8 -> 3 1/2.

4 x 7/8 > 7/8 because 4 x 7/8 = 3 1/2 which is larger than 7/8.

here is a sketch of y=x^2 + bx + c. the curve intersects the x-axis at (2,0) and point P. the y-axis at (0,14) work out the x-coordinate of the turning point of the graph

Answers

Final answer:

Finding the x-coordinate of the turning point of a quadratic equation requires knowledge of its coefficients. Given a function y = x^2 + bx + c, and points (2,0) and (0,14), we need further calculations or information to precisely identify b to use the vertex formula -b/2a effectively.

Explanation:

To find the x-coordinate of the turning point of the graph of the quadratic equation y = x^2 + bx + c, we can use the fact that the vertex of a parabola given by the general form ax^2 + bx + c is at x = -b/2a. Since the quadratic intersects the x-axis at (2,0), we can plug x = 2 into the equation to find one relation between b and c.

Another given point is (0,14), which when plugged in gives c = 14. To find b, we need more information from the question or an understanding of quadratic functions more deeply. However, without b, we can use the vertex formula derivatively, knowing that a in our equation is 1 (since the coefficient of x^2 is 1).

We also know that for any quadratic function, the x-coordinate of the vertex (turning point) can be found using -b/2a. Without the exact value of b, we cannot find the exact x-coordinate directly from the information given.

However, the general methodology would involve using the known points to first find equation coefficients and then apply the vertex formula. This highlights the importance of understanding quadratic functions and their graphical representations, such as vertices and intercepts, to solve these types of problems efficiently.

The x-coordinate of the turning point of the graph is 4.5

How to determine the x-coordinate of the turning point of the graph

From the question, we have the following parameters that can be used in our computation:

[tex]y = x^2 + bx + c[/tex]

It intersects the y-axis at (0, 14)

This means that

[tex]0^2 + b(0) + c = 14[/tex]

c = 14

So, we have

[tex]y = x^2 + bx + 14[/tex]

It intersects the x-axis at (2, 0)

So, we have

[tex]2^2 + 2b + 14 = 0[/tex]

4 + 2b + 14 = 0

2b = -18

b = -9

So, we have

[tex]y = x^2 - 9x + 14[/tex]

The x-coordinate of the turning point of the graph is then calculated as

x = -b/2a

So, we have

x = 9/2

x = 4.5

Hence, the x-coordinate of the turning point of the graph is 4.5

A. How many phone plans have national long distance B. How many customized phone plans include 100 minutes per month talking time and paging capabilities?

Answers

I don’t think so I just got a text

Please help quick if you know the answer

Answers

Ok so I just looked it up and the answer should be Letter
C. 8,240,000
Brainliest pts
The correct answer is "C. 8,240,000" Hope this helps.

PLEASE HELP ME I NEED HELP NOW AND NO ONE IS ANSWERING

Consider the relationship between the place values of the 4s in this number.

444.44

Choose ALL answers that are correct.
(more than one)

A. The 4 in the hundredths place is 10 times the value of the 4 in the tenths place.


B. The 4 in the tens place is 10 times the value of the 4 in the ones place.


C. The 4 in the hundredths place is 1/10 times the value of the 4 in the tenths place.

Answers

All the choices are correct.

_____
In our base-10 number system, moving a digit one place to the left multiplies its value by 10. Moving it one place to the right multiplies its value by 1/10.

You know already that 1,000 has 10 times the value of 100, and 1/10 the value of 10,000.

A painting crew reported that a job is 3/5 completed. what fraction of the job remains to be done.

Answers

If we know that a job is 3/5 completed, that means that 3 out of 5 has been completed which means that 2 out of 5 has not been completed.

The required fraction of the job that remains to be done is 2x / 5.

Given that,
A painting crew reported that a job is 3/5 completed. what fraction of the job remains to be done is to be determined.


What is arithmetic?

In mathematics, it deals with numbers of operations according to the statements. There are four major arithmetic operators, addition, subtraction, multiplication, and division,


Let the whole fraction of the job be x.
A painting crew reported that a job is 3/5 completed = 3/5x
The job remains to be done = x - 3/5x
                                         = 2x / 5

Thus, the required fraction of the job that remains to be done is 2x / 5.

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Other Questions
Read the passage from The Strange Case of Dr. Jekyll and Mr. Hyde."I have buried one friend to-day, he thought: "what if this should cost me another? And then he condemned the fear as a disloyalty, and broke the seal. Within there was another enclosure, likewise sealed, and marked upon the cover as "not to be opened till the death or disappearance of Dr. Henry Jekyll. Utterson could not trust his eyes. Yes, it was disappearance; here again, as in the mad will which he had long ago restored to its author, here again were the idea of a disappearance and the name of Henry Jekyll bracketted. But in the will, that idea had sprung from the sinister suggestion of the man Hyde; it was set there with a purpose all too plain and horrible. Written by the hand of Lanyon, what should it mean? A great curiosity came on the trustee, to disregard the prohibition and dive at once to the bottom of these mysteries; but professional honour and faith to his dead friend were stringent obligations; and the packet slept in the inmost corner of his private safe.What internal conflicts does Utterson experience in the passage? Check all that apply.1.He distrusts his reasoning.2.He is tempted to open the letter.3.He worries about being loyal.4.He argues with Lanyon.5.He argues with Jekyll. "It was a rare weekend passed," Wash said, "that one or two folk... didn't get killed by the police . . . This is what they'd do to you: They'd call you and make you stick your head in the window [of the police car] . . . and then they would roll the window up . . . And then they'd hit you on your head . . . They'd beat people to death." As a result, he said, parents could scare unruly children into minding them by threatening, "The police gonna get you." If a student compares this excerpt to the cruelty of Nazi leaders, which type of connection is made? a.text to self b. text to person c. text to textd. text to world Review the claim Joshua makes, as well as the reasoning he cites to support it.The funding of the public library should be protected because the library offers important programs and services that benefit the whole community. According to Library Director Sarah Tomlinson, whom I interviewed on May 6, the budget cuts will force the library to discontinue many popular programs and services.Is Joshua's reasoning sound?A.Yes, Joshua's reasoning is sound because he has adopted the position of a knowledgeable expert.B.Yes, Joshua's reasoning is sound because it uses a valid source to show that the library will have to cut services that benefit the entire community.C.No, Joshua's reasoning is not sound because he hasn't asked every member of the community whether they use library services.D.No, Joshua's reasoning is not sound because Sarah Tomlinson is not an expert on library funding. After she realized that the mosquito had bitten her and her hand was starting to itch, akai rubbed some cortisone cream on the swollen spot, and the itching stopped. the next time a mosquito bit her, she applied cortisone cream immediately to relieve the itching. using operant conditioning terms, this is an example of: Daniel is a hunter, and he is out in a duck blind watching for ducks flying overhead. based on what is known about schedules of reinforcement, you should conclude that daniel's watching behavior is likely to be reinforced based on a: Consider two solutions, solution a and solution b. [h+] in solution a is 370 times greater than that in solution b. part a what is the difference in the ph values of the two solutions? Do you think it was moral for Europeannations to claim lands in the Americas that werealready inhabited by natives? 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Let N represent the length of one side of the square Part A:Write and inequality that represents the situation.( I think its N is greater than or equal to 22 , but just making sure ;) ) Part B:Of the lengths 2.5 ft , 4.8 ft , 5.2 ft , 5.8 ft , and 6 ft , which could be the side length of the square.Write all that apply.Please explain your answers and show your work.Thanks!!! What is one reason that Andrew Jackson issued the Specie Circular in July 1836, requiring payment in gold or silver for all public lands? to protect himself and his investments because paper money was hard to obtain because the Congress had forced him to to strengthen the government's currency, What is the value of 238 - 3x^2 when x=4?? The formula for the volume of a cube is V(s) = s3 where s is the side length of the cube. In which quadrant(s) is the graph of the function V(s)? which of the following is the best example of leanard da vincis desire to bring his art as close as possible to nature Treys online music club charges a monthly rate of $20 plus $0.80 per song download. Debs online music club charges a monthly rate of $21 plus $0.60 per song download. For what number of songs will the monthly charge be the same for both clubs? How much will it cost? 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