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Lera25 [3.4K]
3 years ago
6

If a circle has a diameter of 7 inches, what is its circumference in terms of

Mathematics
2 answers:
aleksklad [387]3 years ago
6 0

Answer: 14π in

Step-by-step explanation:

Formula for circumference:

2πr

Plug in your values:

(2)(7)π = 14π in

11111nata11111 [884]3 years ago
5 0
Correct Answer: 7π
Explanation: Formular for circumference is 2πr. Since the diameter of the circle is 7 inches and you need the radius, you have to divide the 7 by 2. Once you have the radius, plug it in to the formula.

r = 7/2 = 3.5

(2)(3.5)π
= 7π
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Robert spun the fair spinner shown below 1,060 times,
prisoha [69]

Answer:

About 400 times

Step-by-step explanation:

Given

n = 1060

See attachment for spinner

Required

Determine the number of times an outcome of 1, 3 or 8 is expected

First, calculate the theoretical probability of 1, 3, or 8

This is calculated as:

Pr = P(1) + P(3) + P(8)

The spinner is divided into 8 equal segments and each outcome appears once.

So, we have:

Pr = \frac{1}{8}+\frac{1}{8}+\frac{1}{8}

Take LCM and add

Pr = \frac{1+1+1}{8}

Pr = \frac{3}{8}

So, the expected number of times (E) is:

E = Pr * n

E = \frac{3}{8} * 1060

E = \frac{3* 1060}{8}

E = \frac{3180}{8}

E = 397.5

Approximate

E = 398

<em>This means about 400 times</em>

8 0
3 years ago
There is 1/4 gram of fat for every 1/3 tablespoon of powdered peanut butter. How many grams of fat are there for every tablespoo
alexdok [17]

For this case what we must do is find the unit rate of grams of fat for every tablespoon of the powder.

We have then:

R = \frac {grams\ of\ fat} {tablespoon\ of\ the\ powder}

Substituting values we have:

R = \frac {\frac {1} {4}} {\frac {1} {3}}

Then, rewriting we have:

R = \frac {3} {4}

Answer:

There are \frac {3} {4} grams of fat are there for every tablespoon of the powder

7 0
3 years ago
Find the angle indicated.
Brilliant_brown [7]
It’s equal to angle 5
5 0
3 years ago
Read 2 more answers
Suppose that a company wishes to predict sales volume based on the amount of advertising expenditures. The sales manager thinks
skelet666 [1.2K]

Answer:

\$444341 \text{to the nearest dollar}

Step-by-step explanation:

According to the sales manager, sales volume and advertising expenditures are modeled according to the linear equation.

Estimated Sales Volume=46.41+0.45(Advertising Expenditures)

If the company has target sales volume of $200,000, we are to determine its proposed advertising expenditure.

Estimated Sales Volume=46.41+0.45(Advertising Expenditures)

200000=46.41+0.45(Advertising Expenditures)

200000-46.41=0.45(Advertising Expenditures)

Advertising Expenditures

=\dfrac{200000-46.41}{0.45}\\=444341.31\\\approx \$444341 \text{to the nearest dollar}

The sales Manager should allocate $444,341 for advertising in the budget.

5 0
3 years ago
PLEASE HELP MEE<br> I will give brainliest :)<br> Question in the picture
Anni [7]

Answer:

I got -11/15

Step-by-step explanation:

I did 3 (1)/(2)*(2)/(5)-5 (1)/(3)*(2)/(5)

7 0
3 years ago
Read 2 more answers
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