Express the statement as an equation involving the indicated variables.The circumference C of a circle is the product of ? and its diameter d.
A. C = ?d
B. C = 2?d
C. C = 
D. C = ? + d
Answer: A
Mathematics
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Find a set of polar coordinates for the point for which the rectangular coordinates are given.(-1, -3)
A. (3.16, 1.25) B. (-3.16, 4.39) C. (-3.16, -1.25) D. (3.16, 4.39)
Mathematics
For the pair of similar triangles, find the missing side n. Round to the nearest tenth when necessary.
A. n = 11 m B. n = 5 m C. n = 10 m D. n = 15 m
Mathematics
Write in decimal notation.2.902 × 10-5
A. 0.0002902 B. -290,200 C. 0.00002902 D. 0.000002902
Mathematics
Use identities to find the exact value of the indicated trigonometric function of the acute angle ?.sin ? = 
, cos ? = 
Find tan ?.
A. 
B. 
C. 4
D. 
Mathematics