Graph the inverse of the function plotted, on the same set of axes. Use a dashed curve for the inverse.
A.
B.
C.
D.
Answer: B
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Solve the problem.45% of what number is 71?
A. 1580 B. 100 C. 158 D. 1
Solve the problem.Two angles are complementary if their sum is 90°. If the measure of the first angle is x°, and the measure of the second angle is (3x - 2)°, find the measure of each angle.
A. 1st angle = 31°; 2nd angle = 59° B. 1st angle = 22°; 2nd angle = 68° C. 1st angle = 22°; 2nd angle = 64° D. 1st angle = 23°; 2nd angle = 67°
Use properties of logarithms to condense the logarithmic expression. Write the expression as a single logarithm whose coefficient is 1. Where possible, evaluate logarithmic expressions.2 log7 5 + log7(r - 8) -
log7 r
A. log7
B. log7
C. log7
D. log7
A radioactive substance decays in such a way that the amount of mass remaining after t days is given by the function m(t) = where m t( ) is measured in kilograms. Round your answers to three decimal places. Find the mass at time t = 0 .
(a) 13.5kg (b) 0.015kg (c) 13.015kg (d) 15.135kg (e) none of these