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4 years ago

Find the quotient of 2.632 · 104 and 2 · 10-7.

Mathematics

1 answer:

gtnhenbr [62]4 years ago

7 0

First one:
2.632 • 104 = 273.728

Second one:
2 • 10 - 7 = 13

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Is 9 + 3 + 6x the simplify expression of 9 - (3 - 6x)?

Vinil7 [7]

E. he did not multiply 3 by -1 correctly

The simplify expression is 9 - 3 + 6x = 6 + 6x

4 0

3 years ago

The sum of the interior angles of a quadrilateral ___ the sum of its exterior angles. Select one: a. > b. < c. equals

viktelen [127]

Answer:

The sum of the interior angles of a quadrilateral equals the sum of its exterior angles.

Step-by-step explanation:

The sum of the exterior angles of a quadrilateral is 360 degrees.

The sum of the interior angles = (n-2)*180

Here n = 4, the number of sides.

Quadrilateral has 4 sides.

The sum of the interior angles = (4 - 2)*180

= 2*180

= 360 degrees.

Therefore, the sum of the interior angles of a quadrilateral equals  the sum of its exterior angles.

Hope this will helpful.

Thank you.

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3 years ago

The amount of time the husband and the wife spend on house work is measured for 15 women and their 15 husbands. For the wives th

dolphi86 [110]

Answer:

The value of the test statistic is z = -0.877.

Step-by-step explanation:

Testing the difference in mean time spent on housework between husbands and wives.

At the null hypothesis, we test if there is no difference, that is, the subtraction of the means is 0:

$H_0: \mu_H - \mu_W = 0$

At the alternate hypothesis, we test if there is a difference, that is, the subtraction of the means is different from 0.

$H_1: \mu_H - \mu_W \neq 0$

The test statistic is:

$z = \frac{X - \mu}{s}$

In which X is the sample mean, $\mu$ is the value tested at the null hypothesis, and s is the standard error.

0 is tested at the null hypothesis:

This means that $\mu = 0$

For the wives the mean was 7 hours/week and for the husbands the mean was 4.5 hours/week. The standard deviation of the differences in time spent on house work was 2.85.

This means that $X = 4.5 - 7 = -2.5, s = 2.85$

What is the value of the test statistic for testing the difference in mean time spent on housework between husbands and wives?

$z = \frac{X - \mu}{s}$

$z = \frac{-2.5 - 0}{2.85}$

$z = -0.877$

The value of the test statistic is z = -0.877.

4 0

3 years ago

Will give brainliest IF CORRECT

hammer [34]

Answer:

They are supplementary angles.

Hope it will help :)

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3 years ago

When you use word processor functions such as spell check and thesaurus to write a second draft you are

nirvana33 [79]

C. Revising because it should be your last stage in the writing process before you publish

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2 years ago

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