Answer:
x = 2
Step-by-step explanation:
x + 3 = -x + 7
Add x to each side
x+x + 3 = -x+x + 7
2x+3 = 7
Subtract 3 from each side
2x = 7-3
2x = 4
Divide by 2
2x/2 = 4/2
x = 2
Answer:
y = -7x - 5
Step-by-step explanation:
14x + 2y = -10
2y = -14x - 10
2y/2 = -14x/2 - 10/2
y = -7x - 5
Hope this helps -w-
Since the area of a triangle is in the form
area=0.5(base)(height)
height=base+7
let base=x
area=0.5(x)(7+x)
30=3.5x+0.5x^2
multiply the equation by 2
60=7x+x^2
subtract 60 from both sides
x^2+7x-60=0
(x-5)(x+12)=0
thus x=5 or x=-12 since we are only considering positive answers
x=-12 is rejected
so base=5 and height=5+7=12
Answer:
(x – h)2+ (y – k)2 = r2
Step-by-step explanation:
4 2/9=8/9
8/9 x 6=48/9= 5 3/9
5 3/9= 5 1/3
