Find the exact value of the expression.sin 25° cos 35° + cos 25° sin 35°
A. 
B. 
C. 
D. 
Answer: B
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Solve the problem.The growth rate of a certain tree (in feet) is given by y = 
+ e-t2/2 , where t is time in years. Estimate the total growth of the tree through the end of the second year by using Simpson's rule. Use 2 subintervals. Round your answer to the nearest hundredth.
A. 2.34 ft B. 3.41 ft C. 5.11 ft D. 3.68 ft
Solve and graph. Write the answer in set-builder notation.
? 7 
A. {x |x ? 21}
B. {x |x > 21}
C. {x |x < 21}
D. {x |x ? 21}
Solve the problem.Barry Newman's savings account has a balance of $1541. After 17 years, what will the amount of interest be at 6% compounded annually?
A. $924.60 B. $2599.56 C. $2613.56 D. $2608.56
Solve the problem.When making a telephone call using a calling card, a call lasting 3 minutes cost $0.65. A call lasting 11 minutes cost $1.45. Let y be the cost of making a call lasting x minutes using a calling card. Write a linear equation that models the cost of a making a call lasting x minutes.
A. y = 10x - 
B. y = -0.1x + 0.95
C. y = 0.1x - 9.55
D. y = 0.1x + 0.35