What is the discriminant of the quadratic equation 0 = - х2 + 4 х - 2?

How to simplify imaginary numbers? √-80? √-45 √-12 √-90 Write 7+√-121 in complex number form? What even is this stuff?

For his long distance phone service, Juan pays an $8 monthly fee plus 6 cents per minute. Last month, juan's long distance bill was $16.58. For how many minutes was Juan billed?

Tom is throwing darts at a target. In his last 30 throws, Tom has hit the target 20 times. You want to know the estimated probability that exactly one out of the next three throws does not hit the target.

The probability is 0.36 that the amount spent on a randomly selected child will be between what two value equidistant from the mean?

4 - 3y = 31 what does y equal?

What is similar multiplying fractions and whole numbers and what is different?

Sarah's youth group is selling candy bars for a fundraiser. The candy bars cost $1.50 each. To date, they have raised $700. Their goal is to raise more than $2,350. How many more candy bars, x, do they need to sell to reach their goal?

If you were to solve the following system by substitution, what would be the best variable to solve for and from what equation?

Find the value of x so that the function has the given value. j (x) = - 4/5x+7; j (x) = - 5

G. c. f between 3 and 13