Simplify. Assume that all radicands are nonnegative.
+ sin2x 
A. (sin x cos x + sin2x) 
B. (sin x cos2 x + sin x) 
C. (sin x cos x + sin2x) 
D. (sin x tan x + sin x) 
Answer: C
Mathematics
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Solve the problem.The variable s is proportional to t, and s = 25 when t = 100. Determine t when s = 50.
A. 4 B. 200 C. 250 D. 190
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Compute r''(t).r(t) = (2 cos t)i + (6 sin t)j
A. r''(t) = (-2 cos t)i + (-6 sin t)j B. r''(t) = (-2 sin t)i + (-6 cos t)j C. r''(t) = (2 sin t)i + (6 cos t)j D. r''(t) = (2 cos t)i + (6 sin t)j
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Determine the number of terms and identify the coefficient of each term of the expression.-7y + 5b
A. 2; -7 and -5 B. 2; 7 and 5 C. 2; 7 and -5 D. 2; -7 and 5
Mathematics
Simplify the radical. Assume that all variables represent positive numbers.
A. 15
B. 35
C. 5
D. 7
Mathematics