Solve the system by the elimination method.2x + 5y = 106x + 15y = 30
A. {(0, 4)}
B. ?
C. {(x, y)| 2x + 5y = 10}
D. {(6, 1)}
Answer: C
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Rewrite the following number using digits.One hundred million, six thousand
A. 1006 B. 100,006,000 C. 106,000,000 D. 1,600,000
Find the equation of the parabola which has the given vertex V, which passes through the given point P, and which has the specified axis of symmetry.V(-3, -1), P(-4, 0), vertical axis of symmetry
A. (y + 3)2 = x + 3 B. (x + 3)2 = -(y + 1) C. (x + 3)2 = y + 1 D. (x + 3)2 = y - 1
A light truck with manual transmission has a circular brake drum with a diameter of 317 millimeters. Each brake pad, which presses against the drum, is 308 millimeters long. What central angle is subtended by one of the brake pads? Write your answer in both radians and in degrees.
?
?
?a = 308 millimeters, b = 317 millimeters
?
A. 2.14 radians, 113° B. 2.04 radians, 110° C. 1.94 radians, 111° D. 2.34 radians, 107° E. 1.64 radians, 114°
Solve the equation and check.
A. x = 11 B. x = 10 C. x = 7 D. x = 8 E. x = -6