Solve the system by substitution.
What will be an ideal response?
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Solve the equation using the quadratic formula.x2 + x + 6 = 0
A. 1, 6 B. 0, 6 C. ±6 D. No real solution
Solve the problem.Your company uses the quadratic model y = -4.5x2 + 150x to represent the average number of new customers who will be signed on (x) weeks after the release of your new service. How many new customers can you expect to gain in week 24?
A. 3492 customers B. -792 customers C. 504 customers D. 1008 customers
Solve the inequality. Express your answer using interval notation.
-1/2 > 0
A. (8, ?)
B. (- ?, 8)
C. (- ?, 8]
D. [8, ?)
The matrix is the final matrix form for a system of two linear equations in variables x1 and x2. Write the Solution of the system.
A. x1 = 3 x2 = 5 B. x1 = -5 x2 = -3 C. x1 = 5 x2 = t for any real number t D. x1 = 5 x2 = 3