What is the surface area WWWIll mark brainllest

Mathematics

1 answer:

Sindrei [870]3 years ago

5 0

The answer is 62 in^2 because the smaller rectangles that we see is 2x3 and there are 2 of those, so we now have 12 inches^2 but, that’s only part of it, now we have the 2x5s which there are also 2 of those, so that’s 20 inches^2 and then lastly we have the 3x5s which once again we have 2 of which gives us 30 inches^2, so if we add all of those areas together, we get 62 in^2

You might be interested in

Solve using<br> elimination <br> X- 2y = 3<br> 3x - y = 2

FrozenT [24]

<u>Answer:</u> x = 1/5 and y= -7/5

Step-by-step explanation: Let's solve your system by elimination.

Multiply the first equation by -3,and multiply the second equation by 1.

-3 (x - 2y = 3)

1 (3x - y = 2)

Becomes:

-3x + 6y = -9

3x -y = 2

Add these equations to eliminate x:

5y = -7

Then solve 5y = -7

5y/7 = -7/5

y = -7/5

Now that we‘ve found y, let’s plug it back in and solve for x.

Write down an original equation:

x - 2y = 3

<h3>Substitute -7/5 for y in x - 2y = 3:</h3><h3>x - 2 (-7/5) = 3</h3><h3>x + 14/5 = 3</h3><h3>x 14/5 + -14/5 = 3 + -14/5 (Add (-14)/5 to both sides)</h3><h3>x = 1/5</h3><h3><u>Answer: </u></h3><h3>x = 1/5 and y = -7/5</h3><h3 /><h3 /><h3 />

6 0

3 years ago

Determine the minimum sample size required when you want to be 99% confident that the sample mean is within 0.50 units of the po

vfiekz [6]

Answer:

b. 224

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So: