Factor completely, if possible.8x2 - 17x - 21
A. (8x + 7)(x - 3)
B. (x - 7)(x - 3)
C. (7x + 8)(x - 3)
D. (x + 8)(x - 3)
Answer: A
Mathematics
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Magazine circulation after t years is modeled by the function
.
?
When was the circulation increasing at the fastest rate? Round your answer to two decimal places.
?
A. After 4.90 years B. After 3.35 years C. After 3.67 years D. After 3.54 years
Mathematics
Find the derivative of the function by using the definition.y = 
+ 
A. - 
- 
B. 
- 
C. - 
- 
D. - 
+ 
Mathematics
Marion wants to lose 30 lb during the next six months. In March, she lost 
lb and in April she lost 
lb. How much more weight does she need to lose to reach her goal?
A. 
lb
B. 
lb
C. 
lb
D. 
lb
Mathematics
Graph the ellipse.4(x - 1)2 + 9(y + 1)2 = 36
A. 
B. 
C. 
D. 
Mathematics