Eliminate the parameter.x = 5 cos t, y = 5 sin t
A. x2 + y2 = 5
B. y = x tan t
C. (x + y)2 = 25
D. x2 + y2 = 25
Answer: D
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Use the table to find the indicated limit.If f(x) = 
, find 
f(x).
A. -0.3286; -0.3028; -0.3003; -0.2997; -0.2972; -0.2725 limit = -0.3 B. -1.4138; -1.3411; -1.3341; -1.3326; -1.3256; -1.2581 limit = -1.3333 C. -0.4286; -0.4028; -0.4003; -0.3997; -0.3972; -0.3725 limit = -0.4 D. -0.5286; -0.5028; -0.5003; -0.4997; -0.4972; -0.4725 limit = -0.5
The average speed of a vehicle on a stretch of a route between 6 A.M. and 10 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.
?
At what time of the morning commute is the traffic moving at the slowest rate? What is the average speed of a vehicle at that time?
?
time = __________ A.M.
?
average speed = __________ mph
What will be an ideal response?
Find the domain of the composite function f?g.f(x) = 
, g(x) = 
A. [-6, 9) ? (9, ?) B. [0, 9) ? (9, ?) C. [-6, 75) ? (75, ?) D. [0, 75) ? (75, ?)
Identify the property of multiplication illustrated by the following.2 ? 1 = 2
A. Inverse B. Commutative C. Associative D. Identity