What is the possible scale factor for the following transformation? (x, y)—>(2x,2y)
(x, y)—>(0.5x,0.5y)
(x, y)—>(-x,-y)
(x, y)—>(x+2,y+2)

b. astronomers

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

if a = 1,   and b = 2, then the answer is 47.99999999. if you round that to the nearest whole number, the answer is 48.