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Andrej [43]
3 years ago
10

What happens to the circumference of a circle when the radius is quadrupled?

Mathematics
2 answers:
kogti [31]3 years ago
6 0
He circumference of a circle<span> is equal to the diameter times pi. So, let's look at </span>what happens<span> if you double the </span>radius<span> of a </span>circle<span> -- say from 2 to 4. The area will go from 12.56 to 50.24. This means that it has </span>quadrupled<span>.</span>
Zolol [24]3 years ago
5 0
Circumference = 2 * PI * radius
The circumference would also be quadrupled.
There is a direct relationship between circumference and radius.

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Express $7.45 for 2.5 pounds of round steak as a unit rate. Show your work.
MrRissso [65]

Answer:

unit rate: $7.45/2.5 lbs of steak

--------------------------------

reduced:

7.45 dollars /2.5 pounds

GCF=0.5

7.45/0.5=14.9$

2.5/0.5=5

unit rate:

$14.9/5 pounds

Step-by-step explanation:

5 0
3 years ago
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Today, the price of a new cell phone is $129.
Gnom [1K]

Answer:

54%

Step-by-step explanation:

129/240 =  0.5375  (divided to find the % change)

0.5375 * 100 (to convert decimal to percent form)

53.7 which is rounded to 54 percent (I needed to round it to the nearest whole percent number)

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3 years ago
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madam [21]

Answer:

A fair six-sized die is rolled. Find the probability of getting at least a 4.

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5 0
3 years ago
What is the function f(x)= 3x^3-4x^2-13x-6 in a factored form if 3 is a zero of the function
Vesnalui [34]

Answer:

f ( x )= ( x − 3 )( 3 x + 2 ) ( x + 1 )

Step-by-step explanation:

I believe this is the answer you were looking for.

I'm not sure what "If 3 is a zero of the function" means

But I factored the equation you provided.

4 0
3 years ago
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posledela

Answer:

x = 3

Step-by-step explanation:

This process is called cross multiplication.

Multiply 6 · 4 = 24

Divide 24 ÷ 8 = 3

x = 3

6 0
3 years ago
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