Answer:
XY = 18 units.
Step-by-step explanation:
The sum of the top and bottom lines = 2 * middle line, so:
6x + 1 + s = 2(4s - 2)
7s + 1 = 8s - 4
5 = s.
So XY = 4(5) - 2 = 18.
Answer:
The line has no slope. I hope this helps
Answer:
x=21.9317121994
Step-by-step explanation:
You just look at the half triangle and use the Pythagorean Theorem. One side of the triangle is 9 (half of 18), the other is 20, so you find the hypotenuse.
9²+20²=x²
81+400=x²
481=x²
√481=x
x=21.9317121994
Hello,
We have : (a + b)² = a² + 2ab + b²
4x² + 20x + 25 = (2x)² + 2 × 2x × 5 + 5² = (2x + 5)² → answer B
Here, we have a = 2x and b = 5 !