B. 10+3x=5
3x=-5 (subtract 5 both sides)
X=. -5/3 (divide both sides by 3)
C. A+x = b
X = b-a (just get x alone)
D. Cx = d
X = d/c
Answer:
Step-by-step explanation:
xy = 42
x+y = - 2 Substitute into the top equation
y = -2 - x Put in for y
x(-2 - x) = 42 Remove the brackets
-2x - x^2 = 42 Subtract 42 from both sides.
-2x - x^2 - 42 = 0 Put in the more normal order.
-x^2 - 2x - 42 = 0 Multiply by -1
x^2 + 2x + 42 = 0
This cannot be factored. It gives complex roots as it is written. I will give you the answer but I kind of doubt the question is correct.
x1 = - 1 + 6.40i
x2 = -1 - 6.40i
Leave a comment if you have a correction.
For a shape to be perpendicular it must intersect and have right angles at 90 degrees. Trapezoids do not have this but acute and obtuse angles at their intersections. So the answer is no, the bases are not perpendicular. <span />
Answer:
3 unit
Step-by-step explanation:
3/4 x 4 = 12/4 = 3
