Which expression is equivalent to16x2+81?

1.

(4x-9i) 2

2.

(4x+9i) (2x+3i) (2x-3i)

3.

(4x+9i) (4x-9i)

4.

(4x+9i) 2

Last month, Hao's ate 40 cans of dog food in 31 days. How many cans should Hao buy to feed his dog for the next 6 days?

Match the term with the definition. 1.

What is the value of x is in the solution set of 8x-6>12+2x?

A water tower is used to store fire fighting water at an industrial plant. The tank on top of the tower is in the shape of a cylinder wit a height of 15 feet and a diameter of 7 feet. One cubic foot is approximately 7.5 gallons.

Simplify the sum. (7u^3 + 8u^2 + 7) + (8u^3 - 3u + 7)

Taven mixes 18 liters of 14% acid solution with a 35% acid solution, which results in 23% acid solution. Let x represent the number of liters of 35% solution used and let y represent the number of liters of mixture.

Probability with Huntington's disease? Huntington disease is a rare degenerative human disease determined by a dominant allele, HD. The disorder is usually manifested after the age of 45.

The solution set sqrt3x+16=x+2 is (only 3x+16 is squared)

In triangle ABC, what is the length of side bif B = 48°, C = 81°, and c = 25?

Find the difference 2/3 and - 3/4