FInd the tangential and normal components of the acceleration.r(t) = (2t sin t + 2 cos t)i + (2t cos t - 2 sin t)j + 8k
A. a = 2T + 
N
B. a = 2T + 2tN
C. a = 2tN
D. a = 
N
Answer: B
Mathematics
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Solve the problem.If f(x) = 
, g(x) = 
, and h(x) = 4x+ 8, find f(g(h(x))).
A. 
+ 2
B. 
C. 4
+ 8
D. 
Mathematics
Solve.A window consists of a rectangle and a semicircle (half a circle). The dimensions of the rectangle are 10 ft by 6 ft. Find the area of the window. If necessary, use 3.14 for ? and round the result to the nearest tenth.
6 ft
A. 116.5 ft2 B. 64.7 ft2 C. 173 ft2 D. 30.1 ft2
Mathematics
Perform the indicated operations.
÷ 
? 
A. 
B. r + s
C. r - s
D. 
Mathematics
Solve.6r + 10 = 52
A. 40 B. 36 C. 7 D. 1
Mathematics