Calculate.7 + (-5) + (-8)
A. -6
B. 10
C. 20
D. 4
Answer: A
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Write an equivalent double integral with the order of integration reversed.
A. 
B. 
C. 
D. 
The average speed of a vehicle on a stretch of Route 134 between 6 a.m. and 9 a.m. on a typical weekday is approximated by the function
?
?
where 
is measured in miles per hour and 
is measured in hours, with 
corresponding to 6 a.m. Find the interval where 
is decreasing and the interval where 
is increasing.
?
A. 
is increasing on 
is decreasing on 
B.
is increasing on is decreasing on 
C.
is increasing on 
is decreasing on 
D.
is increasing on 
is decreasing on
E.
is increasing on 
is decreasing on
Set up the percent proportion for the application problem. Do not try to solve for any unknowns.A chemical is 78% pure. In 760 grams of the chemical, how much is pure?
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Use the leading coefficient test to determine whether y?? or y?-? as
y = 3x6 - x5 + 5x2 - 5
A. ? B. -?