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3 years ago

I'm also stuck on this one! Help!

Mathematics

1 answer:

grin007 [14]3 years ago

4 0

Answer:

a = 58

Step-by-step explanation:

90-32=58

HOPE THIS HELPS :)

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According to a study by the American Pet Food Dealers Association, 63 percent of U.S. households own pets. A report is being pre

Elis [28]

Answer: 2.511 lies in the rejection region, so we will reject the null hypothesis.

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Step-by-step explanation:

Since the null and alternate hypothesis are :

$H_0:\pi =0.63\\\\H_1:\pi \neq 0.63$

Since there is 0.05 level of significance,

So, there will be two tail test:

As we know that

z = -1.96 or z = 1.96

If the test statistic does not fall in the range of -1.96 to 1.96, we will reject the null hypothesis.

So, it becomes,

$z=\dfrac{p-\pi }{\sqrt{\dfrac{\pi(1-\pi)}{n}}}\\\\z=\dfrac{0.7-0.63}{\sqrt{\dfrac{0.63.\times 0.37}{300}}}\\\\z=2.511$

Since 2.511 lies in the rejection region, so we will reject the null hypothesis.

Hence, People does not seem to be representative of the Pet Food survey respondents.

6 0

3 years ago

Complete the synthetic division problem below.

Paraphin [41]

C. 2x+5

...................

6 0

3 years ago

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For which value of m is the equation below true? x^m x^4=x^8? A m=4. B m=12. C m=32. D m=2

Karolina [17]

Answer:

Step-by-step explanation:

Using the rule of exponents

$a^{m}$ × $a^{n}$ ⇔ $a^{m+n}$ , thus

Given

$x^{m}$ × $x^{4}$ = $x^{8}$ , that is

$x^{4+m}$ = $x^{8}$

Since the bases are the same equate the exponents

4 + m = 8 ( subtract 4 from both sides )

m = 4 → A

5 0

3 years ago

Solve the multiplication problem -5/8 times 2/3

wel

Answer:

$\frac{-5}{8}\times \frac{2}{3}=\frac{-5}{12}$ or -0.42

Step-by-step explanation:

Given:

The statement says -5/8 times 2/3

Solution:

$=\frac{-5}{8}\times \frac{2}{3}$

$=\frac{-5\times 2}{8\times 3}$

$=\frac{-10}{24}$

the numerator and denominator is divided by 2

$=\frac{-5}{12}$

Therefore, The multiplication of $\frac{-5}{8}$ and $\frac{2}{3}$ is $\frac{-5}{12}$ or -0.42

4 0

3 years ago

Carla's team won 3 out of 5 games. Elena's team won games at the same rate. Elena's team won 9 games. How many games did Elena's

zalisa [80]

15 games since the ratio 9/15 is equal to the ratio 3/5

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3 years ago

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