Verify the identity.(sin x)(tan x cos x - cot x cos x) = 1 - 2 cos 2 x
What will be an ideal response?
(sin x)(tan x cos x + cot x cos x) = sin x 
= sin 2 x - cos 2 x 
= 1 - 2 cos 2 x.
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The doctor orders 3 L of fluid to be delivered. The patient is to receive 125 cc/hr. How long will it take for the fluid to infuse completely?
A. 24 hr B. 2.4 hr C. 41.7 hr D. 4.2 hr
Provide an appropriate response.Evaluate L = 2C + 1.57(D + d) + 
if C = 28 in., D = 18 in., and d = 8 in. This is the formula that finds the length of a belt that goes around two pulleys.
A. L = 102.86 in. B. L = 64.5 in. C. L = 96.91 in. D. L = 97.71 in.
Perform the operation and write the result in the standard form.(9 + 2i)(9 - 2i)
A. 81 - 4i2 B. 77 C. 85 D. 81 - 4i
Find or investigate the function as requested.The set of ordered pairs is a function. Find a rule that could describe the function.{(5, 15), (6, 18), (8, 24), (10, 30)}
A. Multiply the input number by 3. B. Add 3 to the input number. C. Cube the input number. D. Square the input number.