Simplify the expression. Assume all variables represent nonnegative real numbers. Write the answer in exponential form when necessary.
1/2
A. 4y3/2
B. 4y3
C. y3/2
D. 4y2/3
Answer: A
Mathematics
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Express the number in decimal notation.8.1 × 105
A. 81,000 B. 8,100,000 C. 405 D. 810,000
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Decide whether or not the equation has a circle as its graph. If it does not, describe the graph.x2 + y2 + 6x - 18y + 90 = 0
A. no; the graph is nonexistent B. yes C. no; the graph is the point (-3, 9) D. no; the graph is the point (3, -9)
Mathematics
Use the distributive property to rewrite the expression.5(x + 3y - 3)
A. 5x - 15y - 15 B. 5x + 3y + 3 C. 5x + 15y - 15 D. 5x + 15y + 3
Mathematics
Name the quadrant in which the angle ? lies.cos ? < 0, csc ? < 0
A. I B. II C. III D. IV
Mathematics