Which ratio is equivalent to the rate 40 miles or 1 hour

Need match the functions with correct transformation. f(x) = -3x f(x) = |x-1|+3 f(x) = √(x+3) 1/2x² f(x) = (x+1)²-3 4|x| 1. compress by a factor of 1/2 2. stretch by a factor of 4 3. shift to the left 3 4. shift to the left 1 5. shift up 3 6. reflection

Select the conic section that represents the equation. 3x2 + 3y2 -2x + 4 = 0

Given sin28.4=.4756, cos28.4=.8796, and tan28.4=.5407 find the cos of 61.6