Complete the equation so the result is an identity. sin x = (
)(cos x)
A. cot x
B. tan x
C. csc x
D. sec x
Answer: B
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Express the exercise as a system of linear equations, then find the solution. Use a calculator where appropriate.Aviva has a total of 52 coins, all of which are either dimes or nickels. The total value of the coins is $4.25. Find the number of each type of coin.
A. 24 nickels; 28 dimes B. 33 nickels; 19 dimes C. 21 nickels; 31 dimes D. 19 nickels; 33 dimes
Express the number in standard notation.1.11 × 10-4
A. 0.00111 B. -111,000 C. 0.000111 D. 0.0000111
Find the length of the indicated portion of the trajectory.r(t) = (etcos t)i + (etsin t)j + 7etk, -ln 2 ? t ? 0
A. 
B. 
C. 
D. 
Write the answer to the problem as an algebraic expression.The product of two numbers is 14. One of the numbers is s. What is the other number?
A. 14s
B. 
C. 14 - s
D. 