Use a calculator to find the approximate value of the expression rounded to two decimal places.cos 9
A. 0.99
B. -0.99
C. -0.91
D. 0.91
Answer: C
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Evaluate the improper integral.
A. 
B. 
C. 
D. 
Determine whether the statement is true or false.Zero is always less than a negative number.
A. True B. False
Solve the problem.A company manufactures two types of lawn mowers, a gas-powered model and an electric model. It costs 
to produce each of x gas-powered mowers and 
to produce each of y electric mowers, and the company has at most 
per month to use for production. Write the inequality that describes this constraint on monthly production.
A. 98x + 104y ? 86,450 B. 104x + 98y ? 86,450 C. 104x + 98y ? 86,450 D. 98x + 104y ? 86,450
Find the missing number, if possible. There may be more than one number that works, so find as many as possible. If no number works, write "No number possible."10 ? 
+ 8 = 38
A. -24, 24 B. 3 C. 20 D. -3, 3