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
Answer: D
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Evaluate the integral which is given in cylindrical or spherical coordinates.
A. 5760 B. 95040 C. 51840 D. 8640
Graph.xy = -3
A. 
B. 
C. 
D. 
Change the measurements on this scale drawing to decimals and round them to the nearest tenth of an inch. src="https://sciemce.com/media/4/ppg__tttt0618191158__f1q50g6.jpg" style="vertical-align: -17.0px;" /> in. length b is:
A. 0.3 in.
B. 0.4 in.
C. 0.1 in.
D. 0.2 in.
a 4
in. b 
in. c 
in. d 
in. e 2
Find the slope and the y-intercept of the line.x + 4y = -5
A. slope: 
; y-intercept: 
B. slope: - 
; y-intercept: 
C. slope: - 
; y-intercept: 
D. slope: -4; y-intercept: (0, -5)