Use substitution to determine whether the given x-value is a solution of the equation.tan x = 
, x = 
A. Yes
B. No
Answer: A
Mathematics
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Simplify the expression.274/3
A. 729 B. 243 C. 2187 D. 81
Mathematics
Multiply or divide and simplify your answer.42 ÷ 1
A. 33
B. 35
C. 36
D. 34
Mathematics
Use a calculator to estimate the limit.
x5e-x
A. ? B. 1 C. 0 D. e
Mathematics
Solve the problem.The loudness of a sound is measured in decibels (dB). The loudness L of a sound is related to its intensity I by the equation 
where I0 = 10-12 watts per square meter (W/m2) is the intensity of the faintest sound the human ear can detect. Find the intensity of a 72 dB sound.
A. I = 1019.2 W/m2 B. I = -4.810 W/m2 C. I = 10-4.8 W/m2 D. I = 10708 W/m2
Mathematics