Use a calculator to decide whether the statement is true or false.sin (150° + 30°) = sin 150° + sin 30°
A. True
B. False
Answer: B
Mathematics
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Evaluate.(-1)4
A. 4 B. -4 C. 1 D. -1
Mathematics
Determine whether the ordered pair is a solution for the equation.
; y = 
x + 
A. Yes B. No
Mathematics
Solve the problem.The population of a city has varied considerably in recent years. The data in the table relates the pollution P to time t, in years, where t = 0 corresponds to 1990. Use a quadratic function fitted to the data to predict the population in 2000. 
A. 48,430.80 B. 58,964.00 C. 119,000.00 D. 81,202.00
Mathematics
Perform the indicated operations.Estimate by first rounding to the nearest hundred, then find the actual difference.
A. Estimate: 400 Actual: 389 B. Estimate: 900 Actual: 400 C. Estimate: 300 Actual: 389 D. Estimate: 400 Actual: 400
Mathematics