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ELEN [110]
4 years ago
7

What is the circumference of a circle with a diameter of of 8.4 cm?

Mathematics
2 answers:
dolphi86 [110]4 years ago
7 0
C= d•pi(3.14). 
3.14•8.4= 26.376. :) 
C= 26.376
Alexxandr [17]4 years ago
5 0
The answer would be 26.39 cm.

Hope this helps!

- Juju
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Which of the following figures could represent the cross section of a rectangular pyramid? Select all that apply.
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Answer:

Options C and E

Step-by-step explanation:

Option A. Circle

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Option E. Triangle

By slicing a rectangular pyramid perpendicular to the base and passing through the vertex we can get the cross section in the form of  triangle.

Options C and E will be the answer.

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4 years ago
Adecco Workplace Insights Survey sampled men and women workers and asked if they expected to get a raise or promotion this year
Mumz [18]

Answer:

Yes

Step-by-step explanation:

Let p1 represent proportion of women and p2 proportion of men. The null and alternative hypothesis will be as follows

Null hypothesis

H_o=p2-p1 ≤0

Alternative hypothesis

H_a=p2-p1>0

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Level of significance is 0.01

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p-value=P(Z≥z)=P(Z≥6.9124)=P(Z≤-6.9124)=0

Since the value of p is less than 0.01, we reject null hypothesis. There’s sufficient evidence that a greater proportion of men is expecting to get a raise

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7 0
3 years ago
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Answer:

the correct answer is (-1, 2)

Step-by-step explanation:


4 0
3 years ago
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