Use logarithmic differentiation to find the derivative of y.y = cos x
A. 
B. cos x
C. cos x
D. cos x
Answer: B
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Magazine circulation after t years is modeled by the function
.
?
At what circulation level is magazine circulation growing at the fastest rate? Round your answer to two decimal places, if necessary.
?
A. 11.00 thousand B. 22 thousand C. 3.67 thousand D. 5 thousand
How many distinguishable permutations of letters are possible in the word?COMMITTEE
A. 181,440 B. 45,360 C. 90,720 D. 362,880
Convert the equation to the standard form for a hyperbola by completing the square.x2 - y2 - 2x + 4y - 4 = 0
A. (x - 1) 2 + (y - 2) 2 = 1
B. (x - 1) 2 - (y - 2) 2 = 1
C. (y - 1) 2 - (x - 2) 2 = 1
D. 
- 
= 1
Find the volume of the specified solid. Use 3.14 as the approximate value of ?, and round your answer to the nearest tenth.Find the volume of a cylinder with radius 9 cm and height 8.3 cm.
A. 743.2 cm3 B. 977.8 cm3 C. 488.9 cm3 D. 2111.0 cm3