Describe the graph of the polar equation.r = 5cot ? csc ?
A. Parabola with vertex at origin opening to the right
B. Parabola with vertex at origin opening upward
C. Circle with radius 5 centered at the origin
D. Line with slope 5 passing through origin
Answer: A
Mathematics
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In an equilateral triangle, each side measures 12 cm. Find the length of the altitude of this triangle.
What will be an ideal response?
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Change the logarithmic expression to an equivalent expression involving an exponent.log5
= -2
A. 525 = 2
B. 
2 = 5
C. 5-2 = 
D. 25 = 
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Solve the problem.How many ways can a committee of 3 be selected from a club with 12 members?
A. 110 ways B. 6 ways C. 220 ways D. 1320 ways
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Factor by grouping.20x4 + 15x2 - 16x2 - 12
A. (20x2 + 4)(x2 - 3) B. (5x2 - 4)(4x2 + 3) C. (5x2 + 4)(4x2 - 3) D. (5x4 - 4)(4x + 3)
Mathematics