3 years ago

Can someone refresh me regarding interval notation in regards to domain and range?

Mathematics

1 answer:

Dmitrij [34]3 years ago

6 0

I can! What problem do u need help on

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what is the center of a circle whose equation is x2 + y2 – 12x – 2y + 12 = 0? o (-12,-2) o (-6, -1) o (6, 1) (12, 2)

Leno4ka [110]

Answer:

(6,1)

Step-by-step explanation:

1.) group the x and y terms (and move the constant to the other side)

x²-12x+y²-2y= -12

divide the coeficcents for the terms with just 1 or 1 x variable by 2 and then square it (and add that to both sides)

x²-12x+36+y²-2y+1= -12+36+1

factor

(x-6)²+(y-1)²= 25

the center is therefore (6,1)

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3 years ago

Make up any division equation thay has a solution of -2

Andrej [43]

-10/5 or -8/4

You can make up an equation with the solution of -2 by multiplying -2 by any number ( for example -2 x 5 ) and then divide the result by the random factor you chose ( which would be 5 in this case )

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3 years ago

What is the original price:$65.00; Markdown: 12%

alexandr1967 [171]

The answer to this question is $57.02

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3 years ago

The ratio of volume of a cone and a hemisphere of same base radius and height is?

aliya0001 [1]

Answer:

1/2

Step-by-step explanation:

Since it is given that the cone and the hemisphere have the same height, and since the height of a hemisphere would be equal to its radius, the cones height must also be equal to its base radius.

With this information we can use the respective volume formulas.

Hemisphere: $\frac{2}{3}$ πr^3