Use a calculator to evaluate the expression. 
A. 14,280
B. 9520
C. 57,120
D. 2380
Answer: C
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Solve the system by graphing. Check the coordinates of the intersection point in both equations.
A. {(5, 2)} B. {(-5, 2)} C. {(x, y) ? 2x + y = -8} D. ?
Use the information below to determine the indicated set. U = {x | x ? N and x ? 15} A = {x | x ? N and 5 < x < 10} B = {x | x ? N and x is even and x < 14} C = {x | x ? N and 8 ? x ? 13} (A ? B')' ? C'
A. {2, 4} B. { } C. {1, 3, 5, 6, 7, 14, 15} D. {2, 4, 6}
Find the inverse function of f. State the domain and range of f.f(x) = 
A. f-1(x) = 
; domain of f: {
x ? -5}; range of f: {
y ? - 3}
B. f-1(x) = 
; domain of f: {
x ? -5}; range of f: {
y ? 3}
C. f-1(x) = 
; domain of f: {
x ? -5}; range of f: {
y ? 5}
D. f-1(x) = 
; domain of f: {
x ? -5}; range of f: {
y ? 
}
Estimate by rounding the addends to the nearest ten:
?
?
A. 1420 B. 1440 C. 1430 D. 1450