Use a calculator to find the function value.cot 56.0°
A. 0.829
B. -0.611
C. 0.675
D. 1.48
Answer: C
Mathematics
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Find the probability. Round to the nearest ten-thousandth when necessary.What is the probability that 15 tosses of a fair coin will show 5 tails?
A. 0.1832 B. 0.0183 C. 0.0458 D. 0.0916
Mathematics
Add.189 + 17,997
A. 19,887 B. 19,616 C. 17,186 D. 18,186
Mathematics
Write the expression in the form a + bi, where a and b are real numbers.(
)2
A. 3 B. 3i C. 9i D. -3
Mathematics
Solve the problem.The monthly sales volume y (in thousands of dollars) is related to monthly advertising expenditures x (in thousands of dollars) according to the equation 
Spending how much money on advertising will result in sales of at least $50,000 per month?
A. At least $5000 B. At least $7500 C. Between $5000 and $10,000 D. At least $10,000
Mathematics