Find the specified domain.For f(x) = 5x - 5 and g(x) = 2x + 5, what is the domain of f ? g?
A. (0, ?)
B. (-?, 0)
C. [0, ?)
D. (-?, ?)
Answer: D
Mathematics
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The vector r(t) is the position vector of a particle at time t. Find the angle between the velocity and the acceleration vectors at time t = 0.r(t) = ti + (
t + 
t2)k
A. ?
B. 0
C. 
D. 
Mathematics
Find the value of the expression.8[-4 + 2(-6 + 5)]
A. 12 B. -34 C. 16 D. -48
Mathematics
Write the expression in simplest form. If a radical appears in the denominator, rationalize the denominator.
A. 
B. 
C. 
D. 
Mathematics
Round the number as requested.43,245 to the nearest ten
A. 43,350 B. 43,240 C. 43,260 D. 43,250
Mathematics