Find the average rate of change for the function over the given interval.y = x2 + 3x between x = 4 and x = 8
A. 22
B. 15
C. 11
D. 
Answer: B
Mathematics
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Find the derivative of the function by first expanding or simplifying the expression. f(x) = 
A. f'(x) = 10x B. f'(x) = 5 C. f'(x) = 1 D. f'(x) = x + 9
Mathematics
Solve the problem.A child's dose of medicine is 
of a pre-measured dose cup. If the bottle of medicine is the size of 6 dose cups, how many children's doses are there in the bottle?
A. 1 dose(s)
B. 6
doses
C. 12 doses
D. 36 doses
Mathematics
The position vector of a particle is r(t). Find the requested vector.The acceleration at t = 1 for r(t) = t5i + 6ln
j + 
k
A. a(1) = 20i + 
j - 14k
B. a(1) = 20i - 
j - 14k
C. a(1) = 20i + 
j + 14k
D. a(1) = 20i + 
j + 14k
Mathematics
Translate the word statement into a percent proportion. Do not solve.53 is 65% of what number?
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Mathematics