Write the statement as an equation.The weight of an elephant (E) is four times the the weight of a cow (C).
A. 4E = C
B. C ? E = 4
C. E = C÷ 4
D. E = 4C
Answer: D
Mathematics
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Solve the problem.Find the mass of a thin triangular plate bounded by the coordinate axes and the line 
if 
.
A. 144 B. 288 C. 72 D. 36
Mathematics
Use the rules for exponents to rewrite the expression and then evaluate the new expression. 
A. -14 B. -5 C. 0 D. 1
Mathematics
Write the interval as an inequality involving x. Graph the inequality.[-1, 3]
A. -1 < x ? 3
B. -1 < x < 3
C. -1 ? x < 3
D. -1 ? x ? 3
Mathematics
Find the one-sided limit.
(2 cos x)
A. 0 B. -2 C. 2 D. does not exist
Mathematics