The half-life of a radioactive isotope is the time it takes for a quantity of the isotope to be reduced to half its initial mass. starting with 145 grams of a radioactive isotope, how much will be left after 5 half-lives?

Describe the effect an increase in i, the interest rate applied to the present value, has on the monthly payment P in the formula a. An increase in i, the interest rate, will not change P, the monthly payment. b.

Decide if the following change is an increase or decrease. then determine the percent of change. 48 inches to 30 inches

A rectangle has side lengths of (11-x) m and (x-4) m. The area of the rectangle is 15m2. Which quadratic equation in standard form represents the area of this rectangle?

A water cooler holds 15 liters of sports drink. Approximately how many gallons is this

How do you find sin x = 4.5/11.75

What is the answer to these 9 + 9n = 9

Solve each problem. Determine which choice (or choices) best represent the equation: 10 is 5 times as many as 2 (A) 5 + 5 = 10 B. 5 * 5 = 10 C. 5 x 2 = 10 D. 10 = 2 x 5

Evaluate the expression for x = 4 1/3 9x + 4 A) 39 B) 40 C) 43 D) 52

Tom rented a truck for one day. There was a base fee of $16.99, and there was an additional charge of 90 cents for each mile driven. Tom had to pay $190.69 when he returned the truck. For how many miles did he drive the truck?

What are the advantages of using an algebraic expression to represent a pattern rule, compared with describing the pattern in words?