The figure shows the velocity v or position s of a body moving along a coordinate line as a function of time t . Use the figure to answer the question. s (m)
When is the body moving backward?
A. 8 < t ? 10
B. 2 < t < 3, 4 < t < 5, 7 < t < 8
C. 2 < t < 3, 4 < t < 5, 7 < t < 9
D. 8 < t < 9
Answer: C
Mathematics
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Use series to evaluate the limit.
A. - 
B. - 
C. 
D. - 
Mathematics
By calculating an appropriate number of terms, determine if the series converges or diverges. If it converges, find the limit L and the smallest integer N such that 
for 
otherwise indicate divergence.an = (1 + 0.153/n)n
A. L ? 1.1653, N = 6 B. L ? 1.153, N = 6 C. L ? 1.1653, N = 2 D. diverges
Mathematics
Simplify the expression.(
)(
)(
)
A. 3
B. - 
C. -3 
D. - 
Mathematics
Find the derivative.y = 
- 
A. -2.4x-3.4 + ?x-3/2
B. -3.4x-2.4 + 
x-3/2
C. -2.4x-3.4 - 
x-3/2
D. -2.4x-3.4 + 
x-3/2
Mathematics