Which equation does NOT represent y as a quadratic function of x? A: y + 3 = x(x + 4)
B: y – x = 2y + 16
C: (x – 3)(x + 6) = y
D: x(x + 7) = y

Use the distance formula to determine the distance that point q is from r on the hypotenusebased on a 2-3 ratio.i need asap !

The average human heart beats 1.15 \cdot 10^51.15⋅10 5 1, point, 15, dot, 10, start superscript, 5, end superscript times per day. there are 3.65 \cdot 10^23.65⋅10 2 3, point, 65, dot, 10, start superscript, 2, end superscript days in one year.how many times does the heart beat in one year? write your answer in scientific notation, and round to one decimal place.

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?