A formula is expressed as D = a (2 + kt). Express k in terms of D, a and t.

Hector invests $20,000 at age 21. He hopes the investment will be worth $200,000 when he turns 40. If the interest compounds continuously, approximately what rate of growth will he need to achieve his goal? Round to the nearest tenth of a percent.

Recall that you can solve a percent problem by translating the words into an equation where the percent is written as a decimal. Example: What percent of 20 is 5? Translates as 5 = 20x x = 0.25, or 25% Example: What is 40% of 20? Translates as x = 0.

How do you determine if a system of equations has no solution, infinite solutions, or 1 solution without graphing?

If A is to the right of B on the number line, which of the following must be true

Write in algebraic expression to find the number of seconds in n minutes

What does 6.30 round to?

240 my sodium for pickle 1/3 or 325 my sodium for 1/2 pickle

An ecologist wishes to mark off a circular sampling region having radius 10 m. However, the radius of the resulting region is actually a random variable R with the following pdf.

A geometric sequence has a first term of 4 and a second term of 12. What is the common ratio?

You have a rock with a volume of 15 cm3 and a mass of 45 g. What's its density? O A) 1/3 g/cm3 O B) 3 g/cm3 OC) 45 g/cm3 OD) 675 g/cm3