The amount A, in grams, of one radioactive substance remaining after t years is given by
.
The amount B, in grams, of a second radioactive substance remaining after t years is given by .
When will the amounts remaining of each be the same? Round your answer to two decimal places if necessary.
?
A. After 3.01 years
B. After 14.14 years
C. After 0.46 years
D. After 15.23 years
Answer: B
You might also like to view...
Solve the equation.13x - 8 = 5x - 72
A. {8} B. {9} C. {-8} D. {-9}
Find the grade point average for a student earning the following grades. Assume A = 4, B = 3, C = 2, D = 1, and F = 0. Round answer to the nearest tenth.
A. 2.3 B. 12.0 C. 3.3 D. 3.6
The polar equation of the graph is either r = a + b cos ? or r = a + b sin ?, a > 0, b > 0. Match the graph to one of the equations.
A. r = 3 + 2 cos ? B. r = 2 + 3 sin ? C. r = 3 + 2 sin ? D. r = 2 + 3 cos ?
Find the specified vector or scalar.u = 3i - 2j, v = -9i + 7j; Find u - v.
A. 12i - 9j B. 10i + 5j C. 11i + 5j D. -6i + 5j