Answer:
4
Step-by-step explanation:
Substitute 3 for x and solve.
|3 - 5| + 2
=|-2| + 2
= 2 + 2 = 4
Straight line = supplementary
Combine angles = 180 degrees
5x + 13x = 180
Solution: C
Answer:
Step-by-step explanation:
First, let us notice that the ticks on the side of this quadrilateral indicate that the lengths of the sides are equal.
From this, we can create the following equation based on the perimeter of this shape.
Now, we can solve this equation for x by first combining like terms
Now, we can subtract 56 from each side
And now divide each side by 2
Just to check out answer, we can plug this x-value into our original perimeter equation to see if it is correct
Answer:
(3, -3)
Step-by-step explanation:
To solve for a system of equations, use substitution.
First, solve for one variable in an equation.
2x - 3y = 15
Add 3y to both sides.
2x = 3y + 15
Divide both sides by 2 to get x by itself.
x = 1.5y + 7.5
Put this in the other equation.
5x + 2y = 9
Substitute the variable.
5(1.5y + 7.5) + 2y = 9
Distribute the 5 inside the 1.5y + 7.5.
7.5y + 37.5 + 2y = 9
Combine like terms.
9.5y + 37.5 = 9
Subtract 37.5 from both sides.
9.5y = -28.5
Divide both sides by 9.5.
y = -3.
Now take this value and put it in the other equation to get your x.
2x - 3y = 15
Substitute variable.
2x - 3(-3) = 15
Multiply.
2x + 9 = 15
Subtract 9 from both sides.
2x = 6
Divide both sides by 2.
x = 3.
Your pair is (3, -3).
Red ! Add the corresponding x coordinates and then divide by 2. Repeat for the y values