Questions and answers by

mdan

Questions (9)

Write the system as a matrix equation and solve using inverses.x1 + 2x2 - x3 = -3 -2x1 - x2 + 3x3 = 0 -4x1 + 4x2 - x3 = -12 A.
1. 3 answers
2. 650 views
Solve the system.3x2 - 2y2 = -5 x2 + y2 = 25 A. (3, 4), (3, -4), (-3, 4), (-3, -4) B. (4, 4), (5, 4), (3, -4), (1, –4) C. (-3,
1. 3 answers
2. 514 views
Test the equation for symmetry with respect to the x-axis, the y-axis, and the origin.x2 + y2 + x2y2 = 4 A. Symmetric with
1. 4 answers
2. 1,925 views
Write the equation of the line passing through (0, –5) and (0, 1).A. x = 0 B. y = 0 C. y = x + 0 D. y = 6x My answer is B , am
1. 3 answers
2. 397 views
The Number Two Plumbing Co. charges $45 per hour plus a fixed service call charge of $65. Write an equation that will allow you
1. 3 answers
2. 593 views
SOLVE(x^2 – x)2 – 14(x^2 – x) + 24 = 0 A. 3, 1, -2, -4 B. 1, -3, -4, 2 C. -3, -1, 2, 4 D. -2, 3, -4, 1
1. 1 answer
2. 476 views
Use the discriminant to determine the number of real roots the equation has.7x2 + 3x + 1 =0 A. One real root (a double root) B.
1. 2 answers
2. 911 views
Use the discriminant to determine the number of real roots the equation has.3x2 – 5x + 1 =0 A. One real root (a double root)
1. 0 answers
2. 858 views
|10x - 1| = x - 10A. -1, 1 B. 1 C. -1 D. No solution
1. 3 answers
2. 364 views