How do you simplify the expression 18+24: (-4) x (-9)

What is the sequence of transformations that maps △DEF to △D′E′F′?

A high school principal randomly polls 50 freshmen, 50 sophomores, 50 juniors, and 50 seniors regarding policy changes for after-school activities. What type of sampling method is used?

What is at the "heart" of hypothesis testing in statistics? (This is a reading assessment question. Be certain of your answer because you only get one attempt on this question.) Choose the best answer below. A. Determine whether a statement is false.

Which system of equation has a solution of approximately (-0.4, 1.1)

The sum of three numbers is 120. If the first number is (2X - 15) and the second is (X - 3), write an expression that represents the third and solve for all three numbers. Show all work!

What's the vertex for y=2x^2-12x+19

What is the decimal of 1/2 percent

The equation above can be used to calculate the volume V, of a pyramid with a height h and base with length l and width w. If the volume of a pyramid is 81inches^3, and l=w=3h, what is the length of the base of the pyramid in inches?

What is the relationship between the decimals 0.09 and 0.9

A group of winning ticket holders share equally 90,000,000 lottery. Before the money is divided, three more winning ticket holders are declared. As a result, each persons share is reduced to 5,000,000.