Use identities to simplify the expression. Do not use a calculator.sin 22.5°cos 22.5°
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Indicate whether the equation has no solution or is true for all real numbers. If neither is the case, solve for the variable.3(4x + 4) - 3 = 18x + 9 - 6x
A. ?
B. {x|x is a real number}
C. 
D. 
Mathematics
Write the number as an exponential expression, using the base shown. Check your result with a calculator.81 (base 3)
A. 43 B. 44 C. 34 D. 35
Mathematics
Solve the problem.Jason borrowed $14,000 at a simple interest rate of 4.1% for three-quarters of a year. What was the interest?
A. $430.50 B. $14,043.05 C. $43.05 D. $14,430.50
Mathematics
Multiply.× 
A. 83.3 B. 234.26 C. 233.16 D. 233.27
Mathematics