How is x^2-8x+20 always positive

What is the surface area of a cylinder that is 5 centimeters high and has a diameter of 1.5 centimeters? A) 7.5π cm² B) 8.625π cm² C) 10.5 π cm² D) 19.55π cm²

Last week Len spent $18 to bowl 4 games. This week he spent $27 to bowl 6 games Len owns his bowling ball and shoes, so he only has to pay for each game that he bowls.

Danny poured 78 l of water into containers xy and z. the ratio of the volume of water in container x to the volume of water in container y is 5:2. the ratio of the volume of water in container y to z is 8:11.

WhAt is. 51 rounded of to the nearest cent

At the copy shoppers, 18 copies cost $ 1.08. At that rate, how much will 40 copies cost

Three of the vertices of a rectangle have coordinates (-1, - 1), (6, - 1), and (-1, 2). What are the coordinates of the fourth vertex

The expression 80 and 4,5890 are both equal to one another. True or False

Solve for v. u=vw + z.

mrs. Walker increase the amount of fruit she eats everyday from 25 to 30 by what percentage did mrs. Walker increase the amount of fruit she eats

Jose worked n hours at $8.75 per hour. He made a total of $61.25. Write an expression that represents the total number of hours Jose worked