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3 years ago

Which expression can be used to find the surface area of the following triangular prism?

Mathematics

1 answer:

Hatshy [7]3 years ago

7 0

<h2>Answer:</h2>

<em><u>The answer is actually, "C"</u></em>

<h2 /><h2><em>Step-by-step explanation:</em></h2>

<em><u>I mean to offence to the other person, but sadly I must prove them wrong.</u></em>

<em><u>Let's start by finding the area of the triangles.</u></em>

<h2><em>Triangles:</em></h2>

Area = 1/2 · base · height
= 1/2 · 4 · 3
= 1/2 · 12
= 6

<em><u>There are two triangle faces with an area of 6 square units.</u></em>

<em><u>So, we add it twice.</u></em>

<h2><em>Left rectangle:</em></h2>

Area = base · height
= 3 · 10
= 30

<h2><em>Center rectangle:</em></h2>

Area = base · height
= 4 · 10
= 40

<h2><em>Right rectangle:</em></h2>

Area = base · height
= 5 · 10
= 50

Finally, we add the area of them all.

<h2><em>Expression:</em></h2>

6 + 6 + 30 + 40 +50.

<h2><em><u>Please mark me brainliest :))</u></em></h2>

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The function f(x) = 1.50x + 12.50 relates how much Kelsey pays for digital service, f(x), to the number of movies, x, she stream

Kobotan [32]

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2 years ago

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Yuki888 [10]

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3 years ago

Read 2 more answers

Evaluate x^-2 for x = -3.

Hitman42 [59]

Hey there!

If x = -3 then replace "x" with -3

New equation: -3^-2

(-1 × 3)^-2

(-1 / 3 )× 3

3 × 3 = 3^3 = 9 (Solving for your denominator)

(-1/3)^2

= (1/9)

This your answer is: 1/9

Good luck on your assignment and enjoy your day!

~LoveYourselfFirst:)

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3 years ago

The point (0,9) is rotated 90 degrees clockwise about the point (0,0). What are the coordinates of the transformed point?

natka813 [3]

Answer:

(-9,0) is the answer of the new coordinates

Step-by-step explanation:

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2 years ago

A random sample of 4"4 fields" of barley has a mean yield of "49.6"49.6 bushels per acre and standard deviation of 7.997.99 bush

ExtremeBDS [4]

Answer:

The critical value that should be used in constructing the interval is T = 5.8408.

The 99% confidence interval for the true mean yield is between 2.943 bushels per acre and 96.268 bushels per acre.

Step-by-step explanation:

We have the standard deviation of the sample, so we use the students t-distribution to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 4 - 1 = 3

99% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 3 degrees of freedom(y-axis) and a confidence level of $1 - \frac{1 - 0.99}{2} = 0.995$ . So we have T = 5.8408. This is the critical value.

The margin of error is:

M = T*s = 5.8408*7.99 = 46.668 bushels per acre

In which s is the standard deviation of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 49.6 - 46.668 = 2.943 bushels per acre.

The upper end of the interval is the sample mean added to M. So it is 49.6 + 46.668 = 96.268 bushels per acre.

The 99% confidence interval for the true mean yield is between 2.943 bushels per acre and 96.268 bushels per acre.

8 0

3 years ago