Solve the problems.A cheetah can run at a speed of approximately 69 miles per hour. Calculate this speed in feet per minute.
A. 6,072 ft./min.
B. 2,070 ft./min.
C. 6,042 ft./min.
D. 6,097 ft./min.
Answer: A
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Provide an appropriate response.The curves y = ax2 + b and y = 2x2 + cx have a common tangent line at the point (-1, 0). Find a, b, and c.
A. a - 2, b = 1, c = -1 B. a = 1, b = -1, c = 2 C. a = -1, b = 1, c = -2 D. a = 1, b = 0, c = 2
Add or subtract as indicated. Express the answer as a single polynomial in standard form.(7x7 - 5x6 - 8x) + (3x7 - 9x6 - 7x)
A. 10x7 - 14x6 - 15x B. 10x - 14x7 - 15x6 C. -5x7 - 2x6 - 12x D. -19x14
Express the sum using summation notation. Use 1 as the lower limit of summation and i for the index of summation.
- 
+ 
- ... + (-1)(11 + 1) 
11
A. 
i
B. 
i
C. 
D. 
i
Solve for x.
?
?
, b = 1
?
A. x = 1 B. x = 7 C. x = 3 D. x = 5 E. x = 4