Find the indicated term or coefficient of the binomial expansion.Find the 11th term of the expansion of (x + 2y)12.
A. 33,792x2y11
B. 67,584x10y2
C. 33,792x10y2
D. 67,584x2y10
Answer: D
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Solve the problem. Assume the x-axis is horizontal, the positive y-axis is vertical (opposite g), the ground is horizontal, and only the gravitational force acts on the objects. A projectile is fired at a speed of 1160 m/sec at an angle of 52°. How long will it take to get 29 km downrange? Round your answer to the nearest whole number.
A. 39 sec B. 43 sec C. It will never get that far downrange. D. 41 sec
Choose the graph that matches the function. f(x) = - 
x - 3
A. 
B. 
C. 
D. 
Solve.Nurses use a formula known as Young's rule to determine the amount of medicine to give a child under 12 years of age when the adult dosage is known: 
where C is the child's dose, A is the age of the child in years, and D is the adult dose. (a) Work backward and find the adult dose in terms of the child's dose. Solve for D. (b) Find D if C = 0.12 gram and A = 4.
A. (a) D = 
,
(b) 0.48 gram
B. (a) D = 
,
(b) 0.52 gram
C. (a) D = 
,
(b) 0.52 gram
D. (a) D = 
,
(b) 0.48 gram
Find the exact value under the given conditions.sin ? = 
, 0 < ? < 
; cos ? = 
, 0 < ? < 
Find cos (? + ?).
A. 
B. 
C. 
D. 