Use a calculator to find the function value to four decimal places.sin (-521°)
A. -0.9455
B. 0.1908
C. -0.7547
D. -0.3256
Answer: D
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Use implicit differentiation to find the specified derivative at the given point.Find 
at the point 
for ex2cos yz = 0.
A. 
B. - 
C. - 
D. 
Find the amount that will be in an account, given the stated conditions.P = $14,000, t = 14, r = 13% compounded semiannually
A. $77,486.54 B. $67,642.64 C. $81,642.64 D. $76,659.76
Subtract.(4b - 1) - (-b + 2)
A. 3b + 1 B. 5b - 3 C. 5b + 1 D. 4b + 1
?The market research department at a manufacturing plant determines that 30% of the people who purchase the plant's product during any month will not purchase it the next month. On the other hand, 40% of the people who do not purchase the product during any month will purchase it the next month. In a population of 1000 people, 100 people purchased the product this month. How many will purchase the product next month?
A. ?510 people B. ?570 people C. ?430 people D. ?400 people E. ?370 people