Use a calculator with a 
key or a 
key to solve the problem.Research suggests that the probability of a certain fuse malfunctioning increases exponentially as the concentration of an impurity in the fuse increases. The probability is modeled by the function y = 4(257,911)x, where x is the impurity concentration, and y, given as a percent, is the probability of the fuse malfunctioning. Find the probability of the fuse malfunctioning for an impurity concentration of 0.12. Round to the nearest percent.
A. 4%
B. 12%
C. 30%
D. 18%
Answer: D
Mathematics
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Write the name of the metric unit of measurement described.
of a gram
A. kilogram B. hectogram C. centigram D. milligram
Mathematics
Solve the problem.The pharmacist mixed 7.53 grams of one drug with 3.618 grams of another drug. What was the weight of the mixture?
A. 11.148 g B. 15.06 g C. 12.248 g D. 7.236 g
Mathematics
Solve.x2 - 45 = 0
A. ±15
B. 15
C. ±3
D. 3
Mathematics
Evaluate the factorial expression.
A. 0 B. 21 C. 1 D. 7
Mathematics