Atruck driver drove 80 miles per hour for the first 30 minutes of a 2-hour trip. his average (mean) speed for the entire trip was 75 miles per hour. which equation can be used to determine his speed, s, for the remaining part of the trip? select one: a. b. c. d.

9. (y^-5)^10y^10 a. y^-60 b. y^60 c. y^-150 d. y^150 find the simplified form of each expression. 10. (4/7^5)^2 a.8/14^10 b.16/49^25 c.16/49y^10 d.8/14y^25 11. determine if the number 3.43 times 10^-6 is written in scientific notation. if not, explain. a. yes; the number is written scientific notation. b. no; the first factor is not a number between 1 and 10. c. no; it is not written as a number times a power of 10

Solve the equation by completing the square. x^2+2x=17

To finance her community college education, sarah takes out a loan for $2900. after a year sarah decides to pay off the interest, which is 4% of $2900. how much will she pay