Which component of a stable ecosystem can not be recycled?

A) oxygen

B) water

C) energy

D) nitrogen

An angle measures x°. What is the measure of its complement and its supplement?

Marvin buys a hose that is 27 3/4 feet long He already owns a hose at home that is 2/3 the length of the new hose How many total yards of hose does Marvin have now?

Fermium-253 has a half-life of 0.334 seconds. a radioactive sample is considered to be completely decayed after 10 half-lives. how much time will elapse for this sample to be considered gone?

AARP reported on a study conducted to learn how long it takes individuals to prepare their federal income tax return (AARP Bulletin, April 2008). The data contained in the Microsoft Excel Online file below are consistent with the study results.

College Algebra you have 2 boards that equal 306 and 1 board is 5 times big than the other of the board how big is tge other piece

What is the solution of - 8x - 5+3x=7+4x - 9

A sprinkler head had a 90-degree rotation and shoots 15 feet long. How much area is covered if there are 12 90-degree heads in one yard? How many 90-degree head do you need to cover a 1200 square foot yard?

Tell whether the number is written in scientific notation 7.814*10^-36

Which equation has the same solution 2x²+16x-10=0 a. (x+4) ² = - 3 b. (x+4) ² = - 11 C ... (x+4) ² = 13 d. (x+4) ² = 21

A die is rolled twice. what is the probability of showing a 3 on both rolls?