Find the speed in miles per hour needed to travel 272 mi in 4 hr 15 min. Use the distance formula 
.
A. 
mph
B. 
mph
C. 
mph
D. 
mph
Answer: C
Mathematics
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Verify the identity.
+ 
= 2 sec t
What will be an ideal response?
Mathematics
Graph.y = 2x + 2(-x) 
A. 
B. 
C. 
D. 
Mathematics
Approximate the area under the curve and above the x-axis using n rectangles. Use right endpoints.f(x) = 3x2 - 2 from x = 1 to x = 5; n = 4
A. 154 B. 140 C. 144 D. 150
Mathematics
Find the missing expression.
- 
= 
A. -7x - 4 B. 7x - 4 C. 33x + 4 D. 7x + 4
Mathematics