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ale4655 [162]
3 years ago
5

What is the radius of the circle who’s equation is x^2 + y^2 = 9

Mathematics
1 answer:
Svetllana [295]3 years ago
8 0

Answer:

r=3

Step-by-step explanation:

  • The equation of a circumference is (x-a)^2+(y-b)^2=r^2.
  • Then , in this case r^2=9, and then to know the value of r we just simply have to calculate the square root of 9, which is 3.
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The equation of a parabola is 18(y−5)2=x+3 . What are the coordinates of the focus? (−3, 7) (−5, 5) (−1, 5) (−3, 3)
aleksandrvk [35]
18(y-5)^2=x+3

do the algebra to make it into =x form

x=18y^2-180y+447

then you take the form of the focus, you can do the math

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6 0
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What is the product of the polynomials below? (6x^2-3x-6)(4x^2+5x+4)​
Lunna [17]

Answer:

(6 - 5x(2))(x(4) - x(3))

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Step-by-step explanation:

4 0
3 years ago
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Hey! i’ll give brainliest please help
Phantasy [73]

Answer:

subject

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subject is a noun (person, place or thing)

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4 0
2 years ago
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Find the missing probability. P(A)=7/20,P(A∪B)=191/400,P(A∩B)=49/400 ,P(B)=? A. 7/8 B. 1/4 C. 117/400 D. 19/40
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Answer:

B

Step-by-step explanation:

P(AUB)=P(A)+P(B)-P(A∩B)

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|h-3|<5 how do I solve using inequalities
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You can find the approximate value of h in this the same way you could with an algebraic expression.

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3 years ago
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