Select the correct answer. Consider this quadratic equation.
x2 + 1 = 2x-3
Which expression correctly sets up the quadratic formula?
A. -(-2) = V(-2)2 – 4(1)(4)
2(1)
B.-(-2) + 2)2 – (1)(4)
2(2)
c. -2 V2)2 – 4(1)(4)
2(1)
-2 (2)2 - 4(1)(-2)
2(1)
D.

Afurniture manufacturer produces chairs and sofas. each chair requires 10 yards of fabric, and each sofa requires 20 yards of fabric. the manufacturer has 300 yards of fabric available. to fulfill orders, the number of sofas must be at least twice the number of chairs. let x be the number of chairs and y the number of sofas. which inequalities are described in the problem? check all of the boxes that apply

Find the value of p for which the polynomial 3x^3 -x^2 + px +1 is exactly divisible by x-1, hence factorise the polynomial

Ab and bc form a right angle at point b. if a= (-3,-1) and b= (4,4) what is the equation of bc?