Express the English phrase using an algebraic expression.Two times a number x decreased by nine
A. 2x + 9
B. 2x - 9
C. 2 - 9x
D. 
Answer: B
Mathematics
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List the indicated feature of the figure.The vertices of
A. AB, AD, AF, ED, EF, EH, CB, CD, CH, GB, GF, GH B. Cannot be identified C. ABCD, ABGF, AFED, BCGH, CHED, EFGH D. A, B, C, D, E, F, G, H
Mathematics
Find the arc length. Leave your answer in terms of pi.An arc with central angle 184° and radius 8 m
A. 16.36? m B. 1.02? m C. 0.04? m D. 8.18? m
Mathematics
Find the common ratio for the geometric sequence.4, -12, 36, -108, 324, . . .
A. -3
B. -16
C. - 
D. 3
Mathematics
Solve the problem.Given the following revenue and cost functions, find the x-value that makes revenue a maximum. R(x) = 84x - 2x2; C(x) = 22x + 101
A. 21 B. 22 C. 42 D. 20
Mathematics