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Eddi Din [679]
3 years ago
8

the diameter of the sphere is 7 inches. What is the circumference of a cross section through the center of the model?

Mathematics
1 answer:
Lerok [7]3 years ago
3 0

Answer:

<h2>10.9955742876</h2>

Step-by-step explanation:

Circumference is 2r × Pi. Circumference of half is 2r × Pi / 2

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When simplified and written in standard form, which quadratic function is equivalent to the polynomial shown?
mars1129 [50]

Answer:

2c^2 - 2c - 3

Step-by-step explanation:

Next time, please share the answer choices.  Thank you.

Group together the 'c' terms in 2 + 7c – 4c2 – 3c + 4:

                                                     2  + 4c and -4c^2 + 4  Then we have:

-4c^2 + 4c + 6

We should reduce this by factoring -2 out of all three terms:

2c^2 - 2c - 3  This is the desired quadratic in standard form.

3 0
2 years ago
In a recent survey 7 out of 10 people prefer coffee in the morning the rest said they prefer tea if 27 people said they prefer t
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<span>To find the answer to this equation, use the result of "27 people" who prefer tea. This is equivalent to 3 out of 10 people in the whole survey sample. Using equivalent fractions to find the total sample, we see that "3/10 = 27/x." Multiplying 3 by 9 gives 27, so multiplying 10 by 9 gives a total sample size of 90 people.</span>
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3 years ago
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vitfil [10]
The answer should be C 20
6 0
2 years ago
So a department store worker gets paid 325.00 per week plus 4% commission of their total sales if the worker sells 3600 of the m
MAXImum [283]

Answer:The amount of commission made is 144

Step-by-step explanation:

The department store worker gets paid 325.00 per week plus 4% commission of their total sales. This means that the worker's earning is not fixed. It varies with the amount of sales made

if the worker sells 3600 of the merchandise, it means that the worker's sales commission will be 4% of 3600 of the merchandise

Sales commission earned by the store worker = 4/100 × 3600

= 0.04 × 3600 = 144

6 0
3 years ago
A cube has a surface area of 216 inches squared. What is the area of one face of the cube?
lesya [120]

Answer:

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step-by-step explanation:

A=6a^2=6x6^2=216

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2 years ago
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