What is the radius for a circle whose equation is x^2+y^2=64

8 is the radius.

Step-by-step explanation:

The standard form of a circle is .

However, I like to call it center-radius form because it tells us the center and the radius.

The center is and the radius is .

So your equation is .

So the center for this circle is (0,0) and the radius is 8.

If it wasn't so obvious that is 64 then you could have entered in your calculator to get 8.

the correct answer is you spend $55.78 more in a brand store that buy ing in a normal store.

step-by-step explanation:

brand = spend   $ 135.85 total

store = spend $80.07 total

the multiples of 15 are 15, 30,45, 60, 75, 90, 105, 120, 135, 150, 165, 180, 195,   210, 225, 240, 255, 270, 285, 300, 315, 330, 345, 360, 375,   390, 405, 420, 435, 450, 465, 480, 495, 510, 525, 540, 555, 570, 585, 600, 615, 630, 645, 660, 675, 690, 705, 720, and 735.

the factors of 15 are 1, 3, 5, and 15.

hope that , fam!

-une, your fren : )