HELP! If the point (3,-7) is the center of a circle and the point (8,5) is on the circle, what is the circumference of the circle?
(A) 13pi
(B) 18pi
(C) 25pi
(D) 26pi

1foot = 12 inches; 1 yard = 3 feet

Amodel rocket is launched from a roof into a large field. the path of the rocket can be modeled by the equation y = -0.04x^2 + 8.6x + 4.8, where x is the horizontal distance, in meters, from the starting point on the roof and y is the height, in meters, of the rocket above the ground. how far horizontally from its starting point will the rocket land? a. 0.56 m b. 215.56 m c. 431.11 m d. 215.74 m

The product of sin 30 degrees and sin 60 degrees is same as the product of