Find the exact value. Do not use a calculator.sin 
A. 
B. 
C. 
D. 
Answer: C
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Find the indicated probability. Round your answer to 6 decimal places when necessary.A fair die is rolled. What is the probability of rolling an odd number or a number less than 3?
A. 
B. 1
C. 
D. 
Find the simplest form of a second-order homogeneous linear differential equation that has the given solution.y = c1e-5x cos 3x + c2e-5x sin 3x
A. D2y - 10Dy + 34y = 0 B. D2y + 10Dy - 34y = 0 C. D2y - 10Dy - 34y = 0 D. D2y + 10Dy + 34y = 0
Solve the problem.A plane flying a straight course observes a mountain at a bearing of 30.9° to the right of its course. At that time the plane is 
from the mountain. A short time later, the bearing to the mountain becomes 40.9°. How far is the plane from the mountain when the second bearing is taken (to the nearest tenth of a km)?
A. 10.2 km B. 11.5 km C. 4.2 km D. 6.3 km
Solve the problem. Round your answer to the nearest cent.Find the 6-year future value of an ordinary annuity with a contribution of $1800 every six months into an account that pays 3.8% per year, compounded semi-annually.
A. $24,006.46 B. $83,378.11 C. $71,374.88 D. $53,476.45