The square of 9 less than a number is 3 less than the number. What is the number?

-12 or 7

-12 or - 7

- 7 or 12

7 or 12

A cube has a surface area of 486 square meters. Find the volume of the cube.

How are negative exponents and positive exponents related?

A rectangle length is 8cm more than three times it's widith. The perimeter is 128 cm find the length.

What is the lateral surface area of the cylinder

The original value of a car is 15,000 and it depreciates 20% each year. What is the value of the car after 3 years

What line on a production possibilities curve shows the amounts of goods produced? A. production possibilities frontier B. opportunity cost line C. utilization of resources D. maximum possible production line

15 x 9 but in distributive property

What is the answer A library contains 2000 books. There are 3 times as many non fiction books as fiction books. Write abd solve a system of equations to determine the number of non fiction and fiction books.

The product of a number m and 6 is no less than 30.

Suppose R and S are reflexive relations on set A and T is a transitive relation on set A. Prove or disprove each of these statements: a) R∪T must be transitive. b) R⊕S is irreflexive. c) R◦S is reflexive