Solve the problem.The Richter Scale measures the magnitude M of an earthquake. An earthquake whose seismographic reading measures x millimeters 100 kilometers from the epicenter has magnitude M given by M(x) = log
. Give the magnitude of an earthquake that resulted in a seismographic reading of 69,326 millimeters 100 kilometers from its epicenter.
A. 7.8
B. 1.8
C. 8.8
D. 6.8
Answer: A
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Provide an appropriate response.By definition of an exponential function, if f(x) = bx is an exponential function, then b must be _______ .
A. greater than or equal to zero B. greater than zero and not equal to one C. greater than one D. greater than or equal to one
Find the probability.The maker of a certain candy claims that the proportions of colors of candy produced are:
0.1 purple and 0.6 yellow. Suppose a candy is selected randomly from each of two
bags. What is the probability that neither will be red?
A. 0.81 B. 0.01 C. 0.2 D. 1
Solve the rational inequality. ? 6x
A. [4, ?) B. (-?, 2] ? [4, ?) C. [0, 2] ? [4, ?) D. (-?, 0] ? [2, 4)
A test requires that you answer either Part A or Part B. Part A consists of 16 true-false questions and part B consists of 10 multiple-choice questions with one correct answer out of 3. How many different completed answer sheets are possible? ?
A. 65,566 sheets B. 1,966,080 sheets C. 59,081 sheets D. 960 sheets E. 124,585 sheets