Solve.Four times the sum of some number plus 3 is equal to 7 times the number minus 9.
A. 21
B. -21
C. -7
D. 7
Answer: D
Mathematics
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Evaluate the given double integral by changing it to an iterated integral.
S is the region bounded by the x-axis, the line 
and the curve 
A. 10 B. 8 C. 9 D. 1
Mathematics
Use the information below to determine the indicated set. U = {q, r, s, t, u, v, w, x, y, z} A = {q, s, u, w, y} B = {q, s, y, z}(A ? B)'
A. {t, v, x} B. {s, u, w} C. {r, t, u, v, w, x, z} D. {q, s, t, u, v, w, x, y}
Mathematics
Multiply and simplify.
? 
A. 
B. 
C. 
D. 
y
Mathematics
Graph the exponential function.f(x) = (
)x + 1 
A. 
B. 
C. 
D. 
Mathematics