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prohojiy [21]
3 years ago
13

The figure is the net for a rectangular prism. What is the surface area of the rectangular prism represented by the net? Enter y

our answer in the box. _______in^2

Mathematics
2 answers:
kvasek [131]3 years ago
7 0

Answer: 174 in²

Step-by-step explanation:

The surface area of the rectangular prism is  the sum of the surface areas of the rectangles.

 The formula for calculate the surface area of a rectangle is:

A=l*w

Where l is the lenght and w is the width.

As you can see in the figure, there are three pairs of equal rectangles, therefore, multiply the surface area of one rectangle of each equal pair by 2.

 The surface area of the rectangular prism is:

A=2(9in*5in)+2(9in*3in)+2(5in*3in)=174in^{2}

PolarNik [594]3 years ago
4 0

Answer:

idk

Step-by-step explanation:

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Explain how you find it
aliina [53]

Answer:

x = 39

Step-by-step explanation:

there is a theorem that states that the midsegment in a trapezoid is equal to the sum of the bases divided by two

so, (36 + 42)/2 = x

36 + 42 = 78

78/2 = 39

8 0
3 years ago
Find the Surface Area. I need the answer fast.
murzikaleks [220]

Answer:

1615

Step-by-step explanation:

Area of triangle is: A= B•H•1/2

Area of square is A= L•W

39•17•1/2= 331.5

331.5•4= 1326

17•17= 289

Add the square area to the area of the triangles

289+ 1326= 1615

hope this helps chu <3

8 0
3 years ago
Read 2 more answers
A veterinarian does research on the causes of enteroliths, stones that develop in the colon of horses. She suspects that feeding
dsp73

Answer:

On average, horses with and without enteroliths are fed the same amount of alfalfa per month

Step-by-step explanation:

Hello!

The veterinarian wants to research if eating alfalfa causes horses to have enteroliths.

The study variables are:

X₁: number of alfalfa flakes eaten over a month by a horse with enteroliths.

X₂: number of alfalfa flakes eaten over a month by a horse free of enteroliths.

She calculated a CI interval, with level 1 - α and the interval contained the cero.

With a significance level α, the hypotheses are:

H₀: μ₁ - μ₂ = 0

H₁: μ₁ - μ₂ ≠ 0

To decide whether you should reject or not the null hypothesis using a Confidence Interval is the following:

If the CI contains the number stated in the null hypothesis, the decision is to not reject the null hypothesis.

If the CI doesn't contain the number stated in the null hypothesis, then the decision is to reject the null hypothesis.

Since the interval contains the cero, if 1 - α and α are complementary, the decision is to reject the null hypothesis.

This means that at a level of significance of α, you can conclude that there is no difference between the population means of the numbers of alfalfa flakes eaten by horses with or without enteroliths.

I hope it helps!

7 0
3 years ago
Please help me :) please
dangina [55]

Answer:

In bold.

Step-by-step explanation:

6/6 = 9/a

So a = 9.

6/c = a/4.5

6/c = 9/4.5 = 2

So c = 3.

By similar triangles:

d/5 = 6/ (6+6+3)

d/5 = 6/15 = 2/5

So d = 2.

Also by similar triangles

b/5 = 12/15 = 4/5

So b = 4.

8 0
3 years ago
Which of the following equations best describe this relation?
Ostrovityanka [42]

Answer:

B.) C= 3n-2

Explanation:

6 0
3 years ago
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