A radioactive isotope has a half-life of 13 hours. Find the amount of the isotope left from a 400-milligram sample after 52 hours. If necessary, round your answer to the nearest thousandth.

Given the diagram below which of the following ordered pairs represents the vertex a? A. (b cosC, c sinC) B. (a cosC, b sinC) C. (b cosC, b sinC) D. (a cosB, a sinB)

In the past you paid $800 $ 800 per month to rent your apartment. You now pay $900 $ 900 per month for your rent. What is the percent increase in your rent?

Prove for all rational numbers x and y, xy is rational

2xsquare-6x+3=0 by completing the square method?

Businesses that flourished during the Second Industrial Revolution were advanced by the construction of hundreds of new roads. the passage of government regulations. the creation of new forms of technology. the reliance on old business models.

How i solve 3x+18=3-2x

The sine of 37° is equal to the cosine of what angle? Enter your answer in the box.

1. Popeye is lifting Olive Oyl off the ground by pulling her upward with a force of 108.1 N. She is pretty thin so she only weighs 10 kg. What is Olive Oyl's acceleration as a result of this force?

Which expression is the factorization of 8x^2+13x-6?

What Exponential form is 1 / 10 x 10 x 10 x 10? :