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4 years ago

PLEASE HELP WILL MARK BRAINLIEST

Mathematics

2 answers:

Dovator [93]4 years ago

8 0

Find the volume of the two shapes and add together:

8x3x5 = 120

2x5x6 = 60

Total volume = 120 + 60 = 180 cubic cm

SashulF [63]4 years ago

3 0

The volume of the object is 180

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Find the slope of the line passing through the points (-4,-4) and (2, 5).

mrs_skeptik [129]

Answer:

the slope of the line passing through the points (-4,-4) and (2, 5) m=3/2.

Step-by-step explanation:

Hello!

To find the slope between two points use the formula

m=(y₂-y₁)/(x₂-x₁)... substitute values
m=(5-(-4))/(2-(-4))
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6 0

3 years ago

Read 2 more answers

A statistics teacher started class one day by drawing the names of 10 students out of a hat and asked them to do as many pushups

mash [69]

Using the t-distribution, we have that the 95% confidence interval for the true mean number of pushups that can be done is (9, 21).

For this problem, we have the <u>standard deviation for the sample</u>, thus, the t-distribution is used.

The sample mean is of 15, thus $\overline{x} = 15$ .
The sample standard deviation is of 9, thus $s = 9$ .
The sample size is of 10, thus $n = 10$ .

First, we find the number of degrees of freedom, which is the one less than the sample size, thus df = 9.

Then, looking at the t-table or using a calculator, we find the critical value for a 95% confidence interval, with 9 df, thus t = 2.2622.

The margin of error is of:

$M = t\frac{s}{n}$

Then:

$M = 2.2622\frac{9}{\sqrt{10}} = 6$

The confidence interval is:

$\overline{x} \pm M$

Then

$\overline{x} - M = 15 - 6 = 9$

$\overline{x} + M = 15 + 6 = 21$

The confidence interval is (9, 21).

A similar problem is given at brainly.com/question/25157574

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3 years ago