John's car is stopped at a red light. when the light changes, the car accelerates to 45 miles per hour in 15 seconds. what is the approximate rate of change in the miles per hour that john's car accelerated? a) 3 miles per hour per second b) 12 miles per hour per second eliminate c) 15 miles per hour per second d) 30 miles per hour per second

If anyone has done the algebra 2 chaos theory portfolio would you be wiling to me? i kind of know what i'm doing i just don't know if i'm doing it right.

Imogene invested $8,000 in a bank account that pays 8 percent simple interest at the end of each year. her friend invested the same amount in stocks where the growth of the investment is represented as 2,000 times the square root of 2 less than the time lapsed in years. if y1 and y2 represent the amount earned in dollars and t is the time lapsed in years, which system of equations correctly represents the situation?

Which function has an inverse function? a.f(x)= |x+3|/5 b. f(x)= x^5-3 c. f(x)= x^4/7+27 d. f(x)= 1/x²