Find the composition. If f(x) = x2 + 6x and g(x) = x + 3, find (f ? g)(3).
A. 72
B. 0
C. 6
D. 30
Answer: A
Mathematics
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Find the acceleration of an object for which the displacement s (in m) is given as a function of the time t (in s) for the given value of t.s = 5t3 + 6t2 + 3t + 3, t = 3 s
A. 102 ft/s2 B. 57 ft/s2 C. 81 ft/s2 D. 174 ft/s2
Mathematics
Solve the equation.2x + 7 = 2(x + 7)
A. 7 B. no solution C. 0 D. 14
Mathematics
Multiply by a fraction equivalent to 1 to build up the fraction to one with the denominator shown.
= 
A. 
B. 
C. 
D. 
Mathematics
Factor the trinomial completely. If the trinomial cannot be factored, say it is prime.x2 + x - 56
A. prime B. (x - 8)(x + 7) C. (x - 7)(x + 8) D. (x + 1)(x - 56)
Mathematics