Rewrite the expression in terms of exponentials and simplify the results.10 cosh (ln x)
A. 5(ex+ e-x)
B. 0
C. 5x
D. 5
Answer: D
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Fill in the digits for the given place values in the following whole number.8,352,642,148billions: millions:
A. Billions: 2, millions: 5 B. Billions: 3, millions: 2 C. Billions: 8, millions: 2 D. Billions: 2, millions: 6
Find the perimeter of the figure.
A. 380 mi B. 457 mi C. 400 mi D. 310 mi
Solve the problem.The formula 
is used in electrical engineering. The variables I, V, and Z are complex quantities. Find V for the given values of I and Z, and express the answer in standard form.
A. -45 - 108i B. 108 - 45i C. 108 + 45i D. -45 + 108i
Find the x-intercepts of the polynomial function. State whether the graph crosses the x-axis, or touches the x-axis and turns around, at each intercept. f(x) = x2(x - 2)(x - 6)
A. 0, crosses the x-axis; 2, crosses the x-axis; 6, crosses the x-axis B. 0, crosses the x-axis; 2, touches the x-axis and turns around; 6, touches the x-axis and turns around C. 0, touches the x-axis and turns around; 2, crosses the x-axis; 6, crosses the x-axis D. 0, touches the x-axis and turns around; -2, crosses the x-axis; -6, crosses the x-axis