Solve the problem.A certain radioactive isotope decays at a rate of 0.175% annually. Determine the half-life of this isotope, to the nearest year.
A. 396 yr
B. 172 yr
C. 4 yr
D. 286 yr
Answer: A
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Find numbers a and b, or k, so that f is continuous at every point.
A. a = 8, b = 85 B. a = -27, b = 45 C. a = 8, b = 5 D. Impossible
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.log550 - log52
A. log550 1/2 B. log548 C. 2 D. log5100
Determine algebraically whether the graph is symmetric with respect to the x-axis, the y-axis, and the origin.x4 + y4 = 6
A. x-axis only B. x-axis, y-axis, origin C. Origin only D. y-axis only
Identify the coordinates of each point labeled in the figure.
A. R(-4, -3); S(2, -3) B. R(2, 8); S(-3, -7) C. R(-4, 2); S(-7, -3) D. R(-4, 2); S(-3, -7)