A chemist has a solution of 65% pure acid and another solution of 30% pure acid. How many gallons of each will make 350 gallons of 55% pure acid solution?

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?

Identify the initial amount a and the growth factor b in the exponential function. a(x)=680*4.3^x

Use the ratio test to determine whether ∑n=14∞n+2n! converges or diverges. (a) find the ratio of successive terms. write your answer as a fully simplified fraction. for n≥14, limn→∞∣∣∣an+1an∣∣∣=limn→∞.