All categories

2 years ago

Select all the correct answers.

Mathematics

1 answer:

patriot [66]2 years ago

6 0

Answer:

A and B

Step-by-step explanation:

You might be interested in

Seven million as a numeral

schepotkina [342]

If you mean in Roman numerals,it would be ___.VII. or it could be ((DCC))

5 0

2 years ago

For the monthly rainfall data set of 7 cm, 3 cm, 10 cm, 7 cm, 12 cm, 10 cm, 8 cm, and 7 cm calculate the mean. * what is the mea

timama [110]

The mean would be 8 since you would have to add all of them up which would give you 64 and then divide by the amount of numbers their are which is 8 so 64/8 = 8

5 0

2 years ago

The owner of a small pet supply store wants to open a second store in another city, but he only wants to do so if more than one-

Andrei [34K]

Answer:

The answer is "The null hypothesis was rejected".

Step-by-step explanation:

Following are the right-tailed test:

Calculating the null and alternative hypothesis:

$H_0 : p = 0.3333\\\\H_a : p > 0.3333\\\\n = 150\\\\x = 64\\\\\hat{p} = \frac{x}{n} = \frac{64}{150} = 0.4267\\\\P_0 = 0.3333\\\\1 - P_0 = 1 - 0.3333 = 0.6667\\\\$

$z = \frac{\hat{p} - P_0}{[\sqrt{\frac{P_0 \times (1 - P_0 )}{n}}]}$

$= \frac{0.4267 - 0.3333}{[\sqrt{\frac{(0.3333 \times 0.6667)}{150}}]}\\\\= 2.426$

Calculating the right-tailed test:

$P(z > 2.426) = 1 - P(z < 2.426) = 1 - 0.9924 = 0.0076\\\\P-value = 0.0076\\\\\alpha = 0.05\\\\P-value < \alpha$

Therefore, we reject the null hypothesis.

This example shows that more than a third of the families own pets in this town.

5 0

2 years ago

What are the fourth roots of -3+3√3i?

barxatty [35]

Answer:

Set

−

√

equal to

−

√

Since

−

√

≠

, there are no solutions.

Step-by-step explanation:

3 0

2 years ago

6. Josh had 5 times as much money as Karen. Both spent $20 each. Josh has 6 times as

vazorg [7]

Answer:

Josh had $500

Karen had $100

Step-by-step explanation:

J = 5K

J - 20 = 6(K - 20)

5K - 20 = 6K - 120

100 = K

J = 500

3 0

2 years ago