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11111nata11111 [884]

2 years ago

6

The magic number is -15. Combine each statement with the magic number and determine if it will result in zero. _______ a. An ele

vator rises 15 floors. _______ b. $15 is withdrawn out of your account. _______ c. The temperature rises 15 degrees.

1 answer:

Paul [167]2 years ago

8 0

Answer:

A. is 0

B. is -30

C. is 0

Step-by-step explanation:

Hope this helps!

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In Hillsboro's wig shop, 1/2 of the wigs are blonde and 1/12 of the wigs are brunette. What fraction of the wigs are either blon

ella [17]

Answer:

7/12

Step-by-step explanation:

So, the probability of picking up a blonde wig = 1/2

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Answer:

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Step-by-step explanation:

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37.1
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5 0

2 years ago

What is the cube root of -729a^9 b^6?

Morgarella [4.7K]

Answer:

$-9a^3b^2$

Step-by-step explanation:

Your Welcome!

8 0

2 years ago

Evgen [1.6K]

Answer:

Null hypothesis $H_0; \mu=5$

Alternative hypothesis $H_a; \mu\neq 5$

Step-by-step explanation:

Consider the provided information.

The shower by an adult is 5 minutes.

The mean amount of time that college students spend in the shower is significantly different from 5 minutes. In a sample of 15 students, he found the average time was 4.29 minutes and the standard deviation was 0.75 minutes.

We need to determine the appropriate null and alternative hypotheses.

A null hypothesis is there is no statistical significance between the two variables.

An alternative hypothesis is there is a statistically significant relationship between two variables.

Therefore the required null and alternative hypothesis are:

Null hypothesis $H_0; \mu=5$

Alternative hypothesis $H_a; \mu\neq 5$

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2 years ago