Use reference angles to find the exact value of the expression. Do not use a calculator.tan 
A. 
B. 
C. 1
D. -1
Answer: C
Mathematics
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Plot the following data points along with a graph of the model obtained using logistic regression. x 5 10 15 20 25 30 y 28.77 54.12 102.11 161.44 185.21 190.45? ?
What will be an ideal response?
Mathematics
Solve the problem.Tracey bought a diamond ring appraised at $2000 at an antique store. If diamonds have appreciated in value at an annual rate of 
what was the value of the ring 9 years ago? (Round your answer to the nearest dollar.)
A. $813 B. $331 C. $848 D. $4716
Mathematics
Find the values of x and y.
= 
A. x = 8, y = 2 B. x = -5, y = 2 C. x = 5, y = -2 D. x = 5, y = -6
Mathematics
Solve the problem. Round your answer to two decimal places if necessary.What is 8.0% of 42?
A. 336 B. 3.36 C. 33.6 D. 0.34
Mathematics