Solve the problem.If y varies directly as x, and y = 3 when x = 5, find y when x = 20.
A. 
B. 12
C. 
D. 
Answer: B
Mathematics
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Provide an appropriate response.Using a calculator, find the value of sin 250°. Round to four significant digits.
A. 1.0642 B. -1.0642 C. -0.9397 D. 0.9397
Mathematics
Write out the first three terms and the last term of the arithmetic sequence.
A. -5 + 0 + 5 + . . . + 55 B. 0 + 5 + 10 + . . . + 55 C. -5 - 0 + 5 - . . . + 55 D. 0 + 20 + 70 + . . . + 295
Mathematics
Factor the trinomial completely.3x3 + 12x2 - 36x
A. 3x(x - 6)(x + 2) B. 3x(x + 6)(x + 2) C. 3x(x - 6)(x - 2) D. 3x(x + 6)(x - 2)
Mathematics
Identify the solid.
A. cylinder B. sphere C. pyramid D. cone
Mathematics