Use a half-angle formula to find the exact value of the expression.tan 165°
A. -
+ 2
B. -
- 2
C. 
- 2
D. 
+ 2
Answer: C
Mathematics
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Give the name of the surface.
A. Oblique rectangular prism B. Square cone C. Oblique cylinder D. Oblique square pyramid
Mathematics
First use front-end rounding to write an estimate of the answer, and then add the decimals to obtain an exact answer.EstimateProblem
? 
A. Estimate: 59, exact: 55.67 B. Estimate: 59, exact: 65.67 C. Estimate: 60, exact: 66.67 D. Estimate: 59, exact: 64.67
Mathematics
Use a calculator to compute. Round the result to two decimal places.- 
- 
A. -5.29 B. -1.38 C. -0.37 D. -0.21
Mathematics
Which answer choice is a graph of the function?
Mathematics