Find the vertex of the parabola.f(x) = -2x2 - 12x - 23

A. (5, 3)
B. (-5, -3)
C. (3, 5)
D. (-3, -5)


Answer: D

Mathematics

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L'Hopital's rule does not help with the given limit. Find the limit some other way.

A. 0 B. 1 C. ? D. -1

Mathematics

Add or subtract as indicated. Simplify, if necessary. + 

A.
B.
C.
D.

Mathematics

Determine whether the terms are like or unlike.15b and 15

A. like B. unlike

Mathematics

Solve the triangle, if possible. Approximate values to the nearest tenth when appropriate.? = 41°10', a = 4.2, b = 3.2

A. ?1 = 59°58', ?1 = 78°50', c1 = 5.6 ?2 = 120°38', ?2 = 18°10', c2 = 1.6 B. ?1 = 78°58', ?1 = 59°50', c1 = 4.8 ?2 = 18°38', ?2 = 120°10', c2 = 15.7 C. ?1 = 59°46', ?1 = 79°4', c1 = 4.8 ?2 = 120°14', ?2 = 18°36', c2 = 1.6 D. No solution

Mathematics