Use the substitution formula to evaluate the integral.
A. 
B. - 
C. 13
D. 26
Answer: C
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Perform the operation indicated.
÷ 
A. 84
B. 1
C. 
D. 
The graph of a function f is given. Use the graph to answer the question.How often does the line y = 10 intersect the graph?
A. once B. twice C. three times D. does not intersect
The following is a 4 8 array of dots.
(a) If 10 dots are removed, how can you arrange the remaining dots so that each row and
each column of the array contain an odd number of dots? Sketch the new arrangement
or explain why it cannot be done.
(b) If 12 dots are removed, how can you arrange the remaining dots so that there is the
same number of dots along each edge? Sketch the new arrangement or explain why it
cannot be done.
If M is the theoretical maximum charge that a battery can hold and k is a positive constant that depends on the battery and the charger, the length of time (in minutes) required to charge the battery to a given level C is given by
?
.
?
If 
, how long will it take a battery to reach a 70% charge? Assume that the battery was fully discharged when it began charging. Round your answer to the nearest tenths.
?
A. 4.0 minutes
B. 2.7 minutes
C. 0.2 minutes
D. 9.3 minutes
E. 0.0 minutes