Solve the absolute value equation or indicate that the equation has no solution.
= 12
A. {-7, 0}
B. {-9, 3}
C. {-9, 0}
D. {-7, 5}
Answer: B
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Solve the problem.Use the formula R = log
, where the magnitude of an earthquake on the Richter scale is based on I, the measurement of a seismic wave, and I0, the measurement of a seismic wave of a level zero earthquake with the same epicenter. An earthquake was recorded which was 2,511,886 times more powerful than a reference level zero earthquake. What is the magnitude of this earthquake? (Round to the nearest tenth.)
A. 6.4 B. 5.4 C. 14.7 D. 0.6
Multiply by powers of 10.0.7848 × 104
A. 784.8 B. 1000.7848 C. 0.78480000 D. 7848
Find the x-intercepts of the polynomial function. State whether the graph crosses the x-axis, or touches the x-axis and turns around, at each intercept. x4 + 8x3 - 48x2 = 0
A. 0, crosses the x-axis; -12, crosses the x-axis; 4, crosses the x-axis B. 0, touches the x-axis and turns around; 12, crosses the x-axis; -4, crosses the x-axis C. 0, touches the x-axis and turns around; 12, touches the x-axis and turns around; -4, touches the x-axis and turns around D. 0, touches the x-axis and turns around; -12, crosses the x-axis; 4, crosses the x-axis
Write the logarithmic equation as an exponential equation.log(100) = 2
A. 10100 = 2 B. 101/2 = 100 C. 1020 = 100 D. 102 = 100