Solve the system graphically.

A. (-6, -5)
B. (5, 6)
C. (5, -6)
D. (-6, 5)


Answer: C

Mathematics

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Write the Hindu-Arabic numeral in expanded form.66557

A. (6 × 104) + (6 × 103) + (5 × 102) + (5 × 101) B. (6 × 104) + (6 × 103) C. (6 × 104) + (6 × 103) + (5 × 102) + (5 × 101) + (7 × 1) D. (6 × 104) + (6 × 103) + (5 × 102)

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Tell whether the angle is acute, right, obtuse, or straight.

A. Obtuse B. Acute C. Right D. Straight

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Fifty percent of students enrolled in an astronomy class have previously taken physics. Thirty percent of these students received an A for the astronomy class, whereas twenty percent of the other students received an A for astronomy.Find the probability that a student selected at random previously took a physics course and did not receive an A in the astronomy course.

A. 0.35 B. 0.40 C. 0.15 D. 0.10 E. none of these

Mathematics

Solve the equation algebraically. Verify your solution with a graphing utility.x2 - 6x - 27 = 0

A. {3, -9} B. {-3, 9} C. {3, 9} D. {-3, -9}

Mathematics