Solve the given equation for the indicated variable. (Leave ± in the answer, if appropriate)rm = t2 - mt for t
A. t =
B. t =
C. t =
D. t =
Answer: C
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Solve the problem.The strength S of a rectangular wooden beam is proportional to its width times the square of its depth. Find the dimensions of the strongest beam that can be cut from a cylindrical log. (Round answers to the nearest tenth.)
A. w = 6.4 in.; d = 9.0 in. B. w = 7.4 in.; d = 10.0 in. C. w = 5.4 in.; d = 10.0 in. D. w = 7.4 in.; d = 8.0 in.
Subtract the real numbers. Write any improper fraction as a whole or mixed number where appropriate.-16 - (-16)
A. 16 B. 0 C. 1 D. -16
Solve the problem.Dave bought 10 packets of cookies for $32.00. Each packet of cookies contains 20 cookies. Find the cost of each cookie to the nearest tenth of a cent.
A. 3.2 cents B. 0.2 cents C. 16.0 cents D. 17.1 cents
Find the center, foci, and vertices of the ellipse.49x2 + y2 - 588x + 1715 = 0
A. + (y - 7)2 = 1
center: (7, 0); foci: (7, ), (7, -4
); vertices:(7, 6),
(7, -6)
B. + (y - 6)2 = 1
center: (6, 0); foci: (6, 4), (6, -4
); vertices:(6, 7), (6, -7)
C. (x - 7)2 + = 1
center: (7, 0); foci: (7, ), (7, -
); vertices:(7, 6), (7, -6)
D. (x - 6)2 + = 1
center: (6, 0); foci: (6, 4), (6, -4
); vertices:(6, 7), (6, -7)