It took mort one hour to ride 5 3/4 miles on his bicycle . How far will mort be able to ride in 3 1/2 hours ?

Enter the number of complex zeros for the polynomial function in the box. f(x) = x+ + 5x² +6

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

The first-serve percentage of a tennis player in a match is normally distributed with a standard deviation of 4.3%. if a sample of 15 random matches of the player is taken, the mean first-serve percentage is found to be 26.4%. what is the margin of error of the sample mean? a. 0.086% b. 0.533% c. 1.11% d. 2.22%