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Rashid [163]
2 years ago
13

An equation of a circle is given as (x + 6)² + (y − 7)² = 81. Find the center and radius of the circle. Show all work to receive

full credit.
Mathematics
1 answer:
Salsk061 [2.6K]2 years ago
4 0
Center is (-6,7) and radius is 9. A circle with a center at (h,k) and a radius of r has the equation (x-h)^2 + (y-k)^2=r^2 so h= -6 k= 7 r is 9 you just work back wards, what two numbers multiplied gives you 81? Well 9
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Would love some help on this! Please include step by step Have a good day!
Effectus [21]

- 24 - 16x(  - 1) \\ 6 { }^{2}  \div 9

negative 24 minus 16x (-1) divided by 6^2 divided by 9

ANSWER

four divided by 81 and than X minus 24

4 \div 81x - 24
5 0
3 years ago
I need help with #3 and #4 part b please help​
Svetradugi [14.3K]
<h3>Answer:</h3>

3)  likely

4)  1/2; equally likely

<h3>Step-by-step explanation:</h3>

3) You are being asked to translate a numerical value to a subjective statement. There are no hard-and-fast rules for this. Generally, the meanings of the terms you're asked to choose from are ...

  • impossible: probability is zero. The outcome cannot occur.
  • unlikely: chances are less than even; often, "unlikely" means a probability of 10%, 5%, 1% or lower, depending on the context.
  • equally likely: probability is near 50%
  • likely: more likely than not. Again, this depends on the context.
  • certain: probability is 1. There is no chance the outcome will not occur.

An 80% probability is greater than 50%, so might reasonably be called "likely."

___

4) a. Four of the eight numbers are even, so the probability of obtaining an even number at random is 4/8 = 1/2.

  b. A probability of 50% might reasonably be called "equally likely", as the probability the event will occur is equal to the probability it won't.

4 0
3 years ago
An equivalent equation has been written by multiplying the second equation by 2.
AVprozaik [17]

its -5 so it is A,( -19/2, -5)

7 0
3 years ago
Can someone explain me?!
Over [174]

Answer:

All I see is darkness. Is that what you are going through or the path you see?

Step-by-step explanation:

Or is it actually a black screen with something on it and no one can see?

4 0
2 years ago
Write this in algebraic. The sum of 12 and 9
Vinil7 [7]

Answer:

21=12+9

Step-by-step explanation:

8 0
3 years ago
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