Answer:
Step-by-step explanation:
2x-5y=8. y = 2/5x-8/5
Line q: (-6,2). Slope -5/2
y-2 = -5/2(x- - 6). y-2 = -5/2(x+6)
y-2 = - 5/2x - 6
y = -5/2x -6 +2
y = - 5/2x - 4
Answer:
5.625
Step-by-step explanation:
Answer:
12.5
Step-by-step explanation:
We can use ratios to solve
4 4+6
---- = ----------
5 AC
4 10
---- = ----------
5 AC
Using cross products
4 * AC = 5*10
4AC = 50
Divide by 4
AC = 50/4
AC =12.5
<h2>
Answer:</h2>
The simplified form of the given polynomial equation is:
![-2x^2-x+7](https://tex.z-dn.net/?f=-2x%5E2-x%2B7)
<h2>
Step-by-step explanation:</h2>
We are asked to simplify the given polynomial expression in terms of the variable x.
The algebraic expression is given as:
![(-9x^2+2x+13)-(-7x^2+3x+6)](https://tex.z-dn.net/?f=%28-9x%5E2%2B2x%2B13%29-%28-7x%5E2%2B3x%2B6%29)
On taking out the terms from both the brackets the sign of the terms of the second bracket gets interchanged as there is a negative sign preceding it.
Hence, we get the expression as:
![=-9x^2+2x+13+7x^2-3x-6\\](https://tex.z-dn.net/?f=%3D-9x%5E2%2B2x%2B13%2B7x%5E2-3x-6%5C%5C)
Now on combining the like terms we get:
![=-9x^2+7x^2+2x-3x+13-6\\\\\\=-2x^2-x+7](https://tex.z-dn.net/?f=%3D-9x%5E2%2B7x%5E2%2B2x-3x%2B13-6%5C%5C%5C%5C%5C%5C%3D-2x%5E2-x%2B7)
Step-by-step explanation:
Solve for the first variable in one of the equations, then substitute the result into the other equation.
Point Form:
(
−
1
,
9
)
Equation Form:
x
=
−
1
,
y
=
9