Simplify the expression without a calculator.
Mathematics
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Evaluate the expression.
3
A. 
B. 3
C. 
D. 
Mathematics
Solve the problem.A stained glass window is composed of 20 triangular sections, each with sides 5, 8, and 7 in. Find the total area of the window (to the nearest square inch).
A. 4285 in.2 B. 346 in.2 C. 17 in.2 D. 110 in.2
Mathematics
Find the median. If necessary, round to one decimal place.During an experiment, the following times (in hours) were recorded: 8, 10, 24, 23, 30, 31.
A. 23 hr B. 18.5 hr C. 24 hr D. 23.5 hr
Mathematics
Solve the problem.f(x) = log2(x - 3) and g(x) = log2(3x + 17).Solve f(x) + g(x) = 6.
A. {32} B. {-5} C. {-32} D. {5}
Mathematics