Find the exact value of the trigonometric expression without the use of a calculator.cos 35° cos 25° - sin 35° sin 25°
A. 
B. 
C. 
D. 
Answer: C
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Solve the problem by writing and solving a suitable system of equations.Suppose that you are to cut a piece of ribbon for a wreath that is 88 inches long into two pieces so that one piece is 3 times as long as the other. How long is each piece of ribbon?
A. 22 and 88 inches B. 22 and 66 inches C. 29 and 44 inches D. 29 and 88 inches
Solve.Melissa invested a sum of money at 3% annual simple interest. She invested three times that sum at 5% annual simple interest. If her total yearly interest from both investments was $5400, how much was invested at 3%?
A. $67,500 B. $22,500 C. $30,000 D. $202,500
Solve the equation algebraically. Round the result to three decimal places.
?
?
A. 
B. 
C. 
D. 
E. 
Provide an appropriate response.Find the area (to three decimal places) bounded by 
and 
A. 7.333 B. 7.0 C. 7.676 D. 7.555