Factor x^2 + 2x - 15.

A) (x - 5) (x + 3)

B) (x - 5) (x - 3)

C) (x + 5) (x + 3)

D) (x + 5) (x - 3)

How can you use the side lengths of a triangle to determine if it is an acute triangle?

3^2+x^2=9^2 What is X?

Two times a number added to another number is 25. Three times the first number minus the other number is 20. Find the numbers

There are two types of hot-water heaters: tank and inline. An experiment is to be conducted to determine whether the life of the hot-water heater is the same for both types of hot-water heaters.

What is 438 rounded to the nearest ten

Given the following scenario, decide if it is a permutation or combination, and then calculate the possibilities. Papa John's pizza has 17 different toppings to choose from. In how many ways can you make a three topping pizza?

A rectangle is 1 unit long. The rectangle is also 2 units wide. what is its perimeter?

10, 18, 4, 15,3,21, x if x is the median of the 7 numbers listed above which of the following could be the value of x?

Find the odds for and the odds against the event rolling a fair die and getting a 4 comma a 5 comma or a 2. a. The odds for the event are nothing to nothing.

Two trains leave at the same station at the same time but are heading in the opposite direction one travels at 70 m. p. h. and the other train travels at 80 m. p. h. how much time passes until they are 600 miles a part.