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Leni [432]
3 years ago
13

How do you find the radius of a circle with a circumference of 12pi

Mathematics
1 answer:
sergejj [24]3 years ago
4 0

Answer:

6

Step-by-step explanation:

The circumference of a circle is 2\pir\pi r, so 12\pi=2\pi r\\12=2r\\r=6.  We can use this because the area of a circle is \pi r^2.  Thus, \pi*6^2=36\pi.

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sergiy2304 [10]

Answer:

Im taking this right now so Im not 100% sure

Step-by-step explanation:

y-intercept: 2 because the slope is passing through 2.

slope: take points (-1,2) and (-1,3)

m=Y2-Y1/X2-X1

m=3-2/-1-1

m=-1/2 or 1/-2(there is no difference)

so the slope is -1/2

b=2

in slope intercept, its going to be:y=-1/2x+2

btw, i noticed that the point isn't -1 it's 0.75 i think. Substitute the -1 for -0.75(-3/4) and finish the math. Sorry.

3 0
3 years ago
Following the PEMDAS order, what is 7 divided by 7 divided by 8
Roman55 [17]
1/8. or .125

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8 0
4 years ago
Read 2 more answers
What is the algebraic description for a transformation that translates the point (x,y) nine units to the right and five units do
katen-ka-za [31]
Y = f(x) goes to y = f(x-9) -5
6 0
3 years ago
Part A<br> What are the possible outcomes of rolling a six-sided die?
nikdorinn [45]

Answer:

the possible outcomes are :

  • one (1)
  • two (2)
  • three (3)
  • four (4)
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4 0
3 years ago
Suppose A and B are mutually exclusive events, and that P(B)=0.03 and P(A OR B)=0.52. Find P(A)
Angelina_Jolie [31]

Answer:

P(A) = 0.49

Step-by-step explanation:

Given:

A and B are mutually exclusive events.

P(B) = 0.03

P(A or B) = 0.52

If two events A and B are mutually exclusive events, then there are no elements common in both the events. So, the probability of their intersection is 0.

Now, as per probability addition theorem:

P(A or B) = P(A) + P(B) + P(A and B)

For mutually exclusive events, P(A and B) = 0. So,

P(A or B) = P(A) + P(B) + 0

P(A or B) = P(A) + P(B)

Plug in the given values and solve for P(A). This gives,

0.52 = P(A) + 0.03

P(A) = 0.52 - 0.03

P(A) = 0.49

Therefore, the probability of occurrence of event A is P(A) = 0.49.

4 0
3 years ago
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