Find the opposite of the number.-3.2
A. -3.2
B. -2.3
C. 3.2
D. 2.3
Answer: C
Mathematics
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If r(t) is the position vector of a particle in the plane at time t, find the indicated vector.Find the acceleration vector.r(t) = (3 ln(2t))i + (6t3)j
A. a = 
i + 18tj
B. a = 
t-2i + 36tj
C. a = - 
t-2i + 36tj
D. a = - 
i + 36tj
Mathematics
Determine the x-values at which the graphs of f and g cross. If no such x-values exist, then state that fact.f(x) = 17, g(x) = x2 - 2x + 2
A. x = 0 and x = 5 B. x = -5 and x = 5 C. x = -3 and x = 5 D. None exist.
Mathematics
Simplify the algebraic expression.-4(9y + 5) - 5
A. -36y - 40 B. -36y C. 36y + 15 D. -36y - 25
Mathematics
Find the derivative of y with respect to the appropriate variable.y = (5 - 5?) tanh-1 ?
A. 
- 5 tanh-1 ?
B. 
- 5 tanh-1 ?
C. 
D. 
- 5 tanh-1 ?
Mathematics