Answer:
x = -9, y =3
Step-by-step explanation:
x + 2y = -3
x - y = -12
Subtract to two equations to eliminate x
x + 2y = -3
-x + y = 12
---------------------
3y = 9
Divide each side by 3
3y/3 = 9/3
y = 3
Now we can find x
x-y =-12
x - 3 = -12
Add 3 to each side
x-3+3 = -12+3
x = -9
Answer:
14 more hours
Step-by-step explanation:
HERE,
the
is a right angle traingle.
length of one side=
length of another side =
so,
the length of third side=
,the length third side of the traingle is 2.
Answer:
x = -25/12 or x = -0.2
Step-by-step explanation:
x(x+5)+6(x+5)=(x+5)
Distribute
x^2 + 5x + 6x + 30 = x + 5
Combine
x^2 + 11x + 30 = x + 5
Subtract 1x from both sides
x^2 + 10x + 30 = 5
Subtract 30 from both sides
12x = -25
Divide 12 on both sides
x = -25/12 or -0.2
We can use quadratic formula to determine the roots of the given quadratic equation.
The quadratic formula is:

b = coefficient of x term = -11
a = coefficient of squared term = 2
c = constant term = 15
Using the values, we get:
So, the correct answer to this question are option B and D