The equasion is y= -1x=6 because it's subtractio one each time and the 0 figure is 6.
Answer:
x=1
Step-by-step explanation:
8x-1=3x+4
8x-1+1=3x+4+1 *You add one on both sides
8x=3x+5
8x-3x=3x-3x+5 *Then you subtract 3x by positive 3x and subtract 8x by -3x
5x=5
5x/5=5/5 *Divide both sides by 5
x=1 *An finally you get your answer
Answer:
is it B
Step-by-step explanation:
Not sure what standard form is, but I can solve for x
so I'm assuming that x2 means x squared or x^2 so
x^2+7x+12=0
since it equals zero, if we can factor it, then
if we have xy=0 then x and/or y=0 so
to factor x^2+7x+12
find what 2 numbers multiply to get 12 and add to get 7 so
12=2 times 2 times 3 or 2 times 6 or 1 times 12 or 3 times 4
the numbesr are 4 times 3 so
x^2+7x+12
facotrs out to
(x+4)(x+3) so
x^2+7x+12=0
(x+4)(x+3)=0
set each to zero
x+4=0 and x+3=0
x+4=0
subtract 4 form both sides
x=-4
x+3=0
subtract 3 from both sides
x=-3
x=-4 or -3
All triangles have a total of 180° in them.
So to find x, simply take 50° and 100° from 180°:
x = 180 - 100 - 50
= 30°
So x = 30°, and thus option D