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yawa3891 [41]
3 years ago
12

Describe how you figure out the square footage of the walls in a 10 by 14 room with an 8 foot ceilings.

Mathematics
1 answer:
anyanavicka [17]3 years ago
5 0
The area of a rectangular prism is found with the formula 
2(wl+hl+hw)
where w is width, h is height, and l is length
The area is sqrt 664
You might be interested in
Directions: Find each square root. Round to the nearest tenth if necessary. help?​
Archy [21]
The square root of 289 is 17
The square root of 360 is 18.97... which would be rounded to 18
The square root of -90 is 9
8 0
3 years ago
Read 2 more answers
18 miles is what percent of 24 miles?
Gekata [30.6K]

Answer:

3/4

Cause there are 3 sixes in 18 and 4 sixes in 24

4 0
3 years ago
Suppose that a random sample of 10 adults has a mean score of 62 on a standardized personality test, with a standard deviation o
aniked [119]

Answer:

The 90% confidence interval for the mean score of all takers of this test is between 59.92 and 64.08. The lower end is 59.92, and the upper end is 64.08.

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:

\alpha = \frac{1-0.9}{2} = 0.05

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.05 = 0.95, so z = 1.645

Now, find the margin of error M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

M = 1.645*\frac{4}{\sqrt{10}} = 2.08

The lower end of the interval is the sample mean subtracted by M. So it is 62 - 2.08 = 59.92

The upper end of the interval is the sample mean added to M. So it is 62 + 2.08 = 64.08.

The 90% confidence interval for the mean score of all takers of this test is between 59.92 and 64.08. The lower end is 59.92, and the upper end is 64.08.

5 0
2 years ago
I need help. Basically, I need to figure out the dependent and independent value of a function.
Rama09 [41]

Answer:

  • x = log(y/4)/log(1.0256)
  • your answer for y=12 is correct

Step-by-step explanation:

The question is asking you to solve ...

   y = f(x)

for x. (In other words, find the inverse function.)

You already did this using a constant for y. Do the same thing with y instead of the constant.

  y = 4(1.0256^x)

  y/4 = 1.0256^x . . . . . . . divide by 4

  log(y/4) = x·log(1.0256) . . . . . take logs

  log(y/4)/log(1.0256) = x . . . . . divide by the coefficient of x

Now, you have a model for x in terms of y, which is what the question is asking for.

  x = log(y/4)/log(1.0256) . . . . . . . exact expression

When y=12, this is ...

  x = log(12/4)/log(1.0256) ≈ 43.46 . . . . weeks

_____

This is a linear equation in log(y), so can be written as such:

  x = 91.0912·log(y) -54.8424 . . . . . approximate expression

6 0
3 years ago
What is the average of 301,317,167 and 319​
Artemon [7]

Answer:

150658743

Step-by-step explanation:

(301 317 167+319)÷2=150658743

4 0
2 years ago
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