Use identities to write each expression as a function of ?.cos (? + 90°)
A. cos ?
B. -sin ?
C. -cos ?
D. sin ?
Answer: B
Mathematics
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Find the domain and range of the function.g(z) = 
A. D: (-1,?), R: (-?,0) B. D: [0,?), R: (-?,?) C. D: (-?,-1), R: (0,?) D. D: [1,?), R: (-?,?)
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Estimate the following problem. Select the nearest answer. 2,100 ð 110 =
a. 210,000 b. 21,000 c. 211,000,000
Mathematics
Solve the problem. Round to the nearest cent.The March 1 unpaid balance in an account was $231. On March 10, a payment of $60 was made. The interest rate per month was 1.7% per month of the average daily balance. Find the new balance at the end of March.
A. $172.70 B. $174.11 C. $203.03 D. $174.20
Mathematics
Provide an appropriate response.The cube of a negative number is negative.
A. True B. False
Mathematics