He needs to cut 20
hope this helped all you have to do is multiply 7 1/2 by 2 2/3
Hi. I begin by finding the positive factors of 14. They are: 1 x 14 and 2 x 7. None of those can be added to yield a negative number, so let's now instead consider their negatives: -1 x -14 and -2 x -7. Does either of these pairs, when added, yield -9? Yes: -2 and -7.
To be clear: -2 x -7 = 14; and -2 + -7 = -9.
So the answer is -2 and -7.
Answer:
x = -6 x = -1
Step-by-step explanation:
x^2 + 7x + 6 = 0
Factor
What two numbers multiply to 6 and add to 7
6*1 = 6
6+1 = 7
(x+6) (x+1) =0
Using the zero product property
x+6 = 0 x+1 = 0
x+6-6 =0 -6 x+1-1 = 0-1
x = -6 x = -1
X-y=7
y=3x+12|-3x
x-y=7
-3x+y=12
---------------------,-
-2x=19
x=-19/2
We know that the angles of a straight line equal 180 degrees and also the sum of all angles in a triangle equals 180 degrees, therefore you can determine x = 38
