Use interval notation to represent all values of x satisfying the given conditions.y1 = 8x - 1, y2 = 7x - 5, and y1 > y2.
A. (-?, -4]
B. [-4, ?)
C. (-6, ?)
D. (-4, ?)
Answer: D
Mathematics
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Solve the system by graphing. Check the coordinates of the intersection point in both equations.
A. {(5, 2)} B. {(-5, 2)} C. {(x, y) ? 2x + y = -8} D. ?
Mathematics
Divide.
A. 0.
B. -0.
C. -0.8
D. 0.8
Mathematics
Solve the problem.If u = -7i - 2j and v = 5i + 7j, find u - v.
A. -13i + 5j B. -14i + 5j C. -2i + 5j D. -12i - 9j
Mathematics
Perform the indicated operations and simplify the result. Leave the answer in factored form.
- 
A. 4x B. 8 C. 0 D. 64
Mathematics