Find the exact value. Do not use a calculator.sin 405°
A. 
B. - 
C. - 
D. 
Answer: D
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Solve the problem.An employee was paid $20,625 during the first half of last year. During the second half he was paid $40,858. How much more was his income during the second half?
A. $61,473 B. $20,233 C. $20,223 D. $61,483
Add the following numbers:
a. 1.23 ð 103 + 4.56 ð 102 b. 81.6 ð 102 + 9.42 ð 103 c. 17.3 ð 10-2 + 47.0 ð 10-3
Solve and check. Identify any extraneous solutions.
- 
= 
A. 1 (4 is extraneous) B. 4 (1 is extraneous) C. 1, 4 D. 1
Solve the problem.The logarithmic function f(x) = -100 + 80 ln x models the number of visitors (in millions) to a certain country's museums, where x is the number of years since the initial recording of the number of visitors. Use this function to estimate the number of visitors in year 45. Round to the nearest tenth of a year.
A. 306.8 million visitors B. 153.4 million visitors C. 204.5 million visitors D. 102.3 million visitors