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4 years ago

Need help somebody help me plz

Mathematics

1 answer:

Wewaii [24]4 years ago

5 0

Hello,
The formula for finding the circumference of a circle is $2 \pi r$ where r is the radius. SO we can plug 4 in for r in this formula because 4 is the radius: $2 \pi 4=8 \pi$ . We are told to use 3.14 for $\pi$ so we get $8(3.14)=25.12$ . Therefore, the circumference is 25.12 meters.

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How do I solve this question?

Jet001 [13]

Answer:

n=2.5

Step-by-step explanation:

First, write an equation!

n+5n-6+2n+1=15

Now, combine like terms to make things easier.

8n-5=15

Cancel -5 from the left to isolate 5n as a variable.

8n-5+5=15+5

8n=20

Now divide both sides by 8.

8n/8=20/8

n=2.5

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3 years ago

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Step-by-step explanation:

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Find the range of f(x)=-x+4 for the domain (-3 -2 -1 1)

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f(-3) = --3 +4 = 3+4 =7

f(-2) = --2 +4 =2+4 =6

f(-1) =--1 +4 = 1+4 =5

f(1) = -1 +4 =3

Range :{3,5,6,7}

Choice A

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3 years ago

Read 2 more answers

According to a report, 67.5% of murders are committed with a firearm. (a) If 200 murders are randomly selected, how many wou

kolezko [41]

Answer: The answer is 135 murders.

Step-by-step explanation: The report tells us that statistically 67.5% of murders are committed using a firearm. It follows therefore that in a sample of 200 randomly selected murders, one would expect that 67.5% of those would be by a firearm. $\frac{67.5}{100}$ * 200 = 135.

It would certainly be higher that the expected value based on previous data collected but it would not be unusual because one sample may have a higher than "normal" amount of murders by firearm. Statistics aren't going to be exact for every sample.

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3 years ago

Find the value of g(25) for the function below. g(x) = 24(x − 39)

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Answer:

-336

Step-by-step explanation:

g(x) = 24(x − 39)

Let x = 25

g(x) = 24(25 − 39)

= 24 (-14)

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3 years ago