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gtnhenbr [62]
3 years ago
7

In a small sporting good store there are 3 managers, 8

Mathematics
1 answer:
Pani-rosa [81]3 years ago
7 0

Answer:

1/2

Step-by-step explanation:

There are 16 people in total.

Cashiers and managers together total 8 people.

8/16 people are cashiers and managers, which equates to 1/2.

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I need help this is hard please help me
Mademuasel [1]

Answer:

P(t)=25000+1.12t

Step-by-step explanation:

Now can you help me?

A basketball is thrown upwards. The height f(t), in feet, of the basketball at time t, in seconds, is given by the following function:

f(t) = −16t2 + 16t + 32

Which of the following is a reasonable domain of the graph of the function when the basketball falls from its maximum height to the ground?

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Based on the above graph, in 2016, which occupation is projected to have about 2,500,000 more workers than there will be compute
Bingel [31]
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What is the perimeter of this pentagon?
exis [7]

Answer:

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add each side together in decimal form

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3 years ago
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m_a_m_a [10]

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Step-by-step explanation:

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6 0
3 years ago
A researcher at the University of Washington medical school believes that energy drink consumption may increase heart rate. Supp
Nana76 [90]

Answer:

Step-by-step explanation:

Given that:

mean μ = 70

sample size = 25

sample mean = 73

standard deviation = 7

level of significance = 0.10

The null hypothesis and the alternative hypothesis can be computed as follows:

\mathtt{H_o : \mu = 70} \\ \\  \mathtt{H_1 : \mu > 70 }

The z score for this statistics can be calculated by using the formula:

z = \dfrac{X- \mu}{\dfrac{\sigma}{\sqrt{n}}}

z = \dfrac{73- 70}{\dfrac{7}{\sqrt{25}}}

z = \dfrac{3}{\dfrac{7}{5}}

z = \dfrac{3 \times 5}{{7}{}}

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At level of significance of 0.10

degree of freedom = n -1

degree of freedom = 25 - 1

degree of freedom = 24

The p - value from the z score at   level of significance of 0.10 and degree of freedom of 24 is:

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5 0
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