List all the factors of each number.231
A. 7 ? 7 ? 3
B. 3 ? 3 ? 11
C. 3 ? 7 ? 11
D. 21 ? 11
Answer: C
Mathematics
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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)
What is the body's velocity when t = 8 sec?
A. -4 m/sec B. 0 m/sec C. 4 m/sec D. 3 m/sec
Mathematics
Solve.The current i (in A) in a certain electric circuit is given by 
, where t is the time in seconds. Sketch a graph of this function. i A
t seconds
A. i A
t seconds
B. i A
t seconds
C. i A
t seconds
D. i A
t seconds
Mathematics
Write the number without exponents.8.985 × 10-5
A. 0.000008985 B. 0.0008985 C. 0.00008985 D. -898,500
Mathematics
Find the perimeter of the figure.
A. 
cm
B. 
cm
C. 
cm
D. 
cm
Mathematics