Solve the system by elimination.-4x - 7y = -12-2x - 4y = -6
A. {(3, 1)}
B. ?
C. {(3, 0)}
D. {(2, 1)}
Answer: C
Mathematics
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Determine whether the graph of the equation is symmetric with respect to the x-axis, the y-axis, and/or the origin.y2 - x - 1 = 0
A. origin B. y-axis C. x-axis D. x-axis, y-axis, origin E. none
Mathematics
Graph the rational function and find the intercepts.f(x) = 
A. x-intercept: 0. y-intercept: 0.
B. x-intercept: 0. y-intercept: 0.
C. x-intercept: 1. y-intercept: 0.
D. x-intercept: 0. y-intercept: 1.
Mathematics
Solve the equation.
- 4 = 1
A. 9 B. -9 C. -15 D. 15
Mathematics
Write the complex number in polar form. Express the argument ? in degrees, with 0 ? ? ? 360°.2
- 2i
A. 4(cos 30° + i sin 30°) B. 4(cos 150° + i sin 150°) C. 4(cos(330°) + i sin(330°)) D. 4(cos(-60°) + i sin(-60°))
Mathematics