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qwelly [4]
2 years ago
11

What is the radius of a circle whose equation is x2+y2+8x−6y+21=0?

Mathematics
1 answer:
melamori03 [73]2 years ago
8 0

Answer:

2 units

Step-by-step explanation:

none

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Calculate the (modeled) probability P(E) using the given information, assuming that all outcomes are equally likely.
Luba_88 [7]

The probability P(E) is 13/15.

According to the statement

we have given that the S = {1, 3, 5, 7, 9}, E = {1, 5, 7}

And we have to find the probability P(E).

So, For this purpose

Recall the formula for the probability of an event E in case when all outcomes are equally likely:

P(E)= n(E) /n(S)

in which S is the sample space.

But we have the S = {1, 3, 5, 7, 9},

so, n(S) = Sum of all outcomes / number of outcomes

n(S) = 1+3+5+7+9 /5

n(S) = 25 /5

n(S) = 5 and

For n(E) = Sum of all outcomes / number of outcomes

n(E) = 1+5+7 /3

n(E) = 13 /3

n(E) = 13 /3

Substitute these values in the above written formula then

P(E)= n(E) /n(S)

P(E)=  (13/3)/ 5

P(E)= 13 /15

So, The probability P(E) is 13/15.

Learn more about the PROBABILITY here brainly.com/question/25870256

#SPJ4

5 0
1 year ago
16 is 4% of what number?
IrinaK [193]
16 is 4% of 400 

Change the percentage into a decimal by dividing the decimal over 100:
\frac{4}{100} = 0.04

Divide 16 by the decimal (0.04):
16 \div 0.04 = 400
3 0
3 years ago
Which of the following equals 3x2−10x−83x2-10x-8 when factored completely? 
xeze [42]
If it was typo and the original equation is 3x^2 - 10x - 8, then the answer would be (<span><span>3x+2)(x-4), but if not then IDK.

Hope this helps!</span></span>
4 0
3 years ago
Emily earns $15 for each car she washes. Create an equation to represent the relationship between the number of cars washed, C,
scoundrel [369]

Answer:

An equation is c = 15m

Step-by-step explanation:

5 0
3 years ago
Chapter 2 Test, Form 2
Softa [21]

1.) -49

2.) 24

3.) 27

4.) 28

5.) 15

8 0
3 years ago
Read 2 more answers
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