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?

If you roll a single six-sided die, what is the probability of rolling an odd number? A. B. C. D. 3

All formulas have how many variables

Y=x+3 is it a linear function?

Pick the correct description of the line 5x + 3y=15

Which of the following is true for the relation f (x) = 5x + 1? Only the inverse is a function. Only the equation is a function. Neither the equation nor its inverse is a function. Both the equation and its inverse are functions.

Maria is enclosing a triangular pen with wire fencing. Two sides of the pen measure 14 ft and 8 ft in length. Which inequality describes the possible length. A. 14> x > 8 B. 22>x> 6 C. 8< x < 14 D. 6 < x < 22

A tree that is 2 feet tall is growing at a rate of 1 foot per year. A 4-foot tall tree is growing at a rate of 0.5 foot per year. In how many years will the trees be the same height

Which statement could describe the dog's movement 5 seconds after the command was given

A cyclist rides his bike at a speed of 18 miles per hour. What is this speed in kilometers per hour? How many kilometers will the cyclist travel in 3 hours? In your computations, assume that 1 mile is equal to 1.6 kilometers.

Which rectangle has an area of 36 square units? On a coordinate plane, a rectangle is 6 units wide and 6 units high. On a coordinate plane, a rectangle is 3 units wide and 3 units high.