7 = 2x + 5
7 - 5 = 2x
2 = 2x
x = 1 ← <span>the other half of the coordinate</span>
Answer:
0 is the inverse of addition
Given the quadratic equation:
Using the general solution for quadratic equations:
From the problem, we identify:
Then:
And the solution set is:
![\lbrack\frac{-5-3\sqrt{5}}{2},\frac{-5+3\sqrt{5}}{2}]](https://tex.z-dn.net/?f=%5Clbrack%5Cfrac%7B-5-3%5Csqrt%7B5%7D%7D%7B2%7D%2C%5Cfrac%7B-5%2B3%5Csqrt%7B5%7D%7D%7B2%7D%5D)
Answer:
x is equal to ± 1/2
Step-by-step explanation:
To find x, we simply need to take the square root of both sides:
x² = 1/4
√(x²) = √(1/4)
x = √(1/4)
x = ± 1/2
Answer:
48x + 216 square inches.
Step-by-step explanation:
Area is length X width.
Area is (4x + 18)(12).
in 4x + 18, 18 comes from adding the three 6 in.
We have no values for "x", so expand the equation and simplify.
(4x + 18)(12)
= 48x + 216
