What are the solution(s) of the quadratic equation x2 = -98?

a x = ± 7 i 2

b x = ± 2 i 7

c x = ± 2 i 7
d x=+6i 3

Y= x – 6 x = –4 what is the solution to the system of equations? (–8, –4) (–4, –8) (–4, 4) (4, –4)

The weight of a small starbucks coffee is a normally distributed random variable with a mean of 340 grams and a standard deviation of 11 grams. find the weight that corresponds to each event. (use excel or appendix c to calculate the z-value. round your final answers to 2 decimal places.)highest 30 percent middle 70 percent highest 90 percent lowest 20 percent

Acount went up from 450 to 600. what was the approximate percent increase?