Solve.What is 3.25% of 90?
A. 292.5
B. 29.25
C. 2.925
D. 27.69
Answer: C
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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%
Write the logarithmic equation in its equivalent exponential form.log1/5 625 = -4
A. 5625 = -4
B. (-4)1/5 = 625
C. 
-4 = 
D. 
-4= 625
Find the exact value of the trigonometric expression without the use of a calculator.cos (135° + 240°)
A. - 
B. 
C. 
D. - 
Find 
.
?
, ?
What will be an ideal response?