Answer: x = 3 - sqrt 17 / 2 , x = 3 + sqrt 17 / 2
Step-by-step explanation:
2x^2 = 4 + 6x
divide both sides by 2
x^2 = 2 + 3x
move expression to the left
x^2 - 2 - 3x = 0
reorder the terms
x^2 - 3x - 2 = 0
use the quadratic formula
x = - (-3) +- sqrt (-3)^2 - 4 x (-2) / 2 x 1
calculate
x = 3 +- sqrt 17 / 2
answer
x = 3 - sqrt 17 / 2 , x = 3 + sqrt 17 / 2
Answer:
9 sides
Step-by-step explanation:
Given the sum of the interior angles = 1260°, then
180° (n - 2) = 1260 ( divide both sides by 180 )
n - 2 = 7 ( add 2 to both sides ), hence
n = 9
Answer:
72%.
Step-by-step explanation:
We have been given that a big movie theater had 1,200 seats. 864 of the total number of the seats were sold.
To find what percentage of the total seats were sold we will find 864 is what percent of 1200.
Therefore, 72% of the total seats were sold.
Answer:
mean = 0
Step-by-step explanation:
-3 -2 -1
0
1
2
3
if your set is -3, -2, -1, 0, 1, 2, 3 the your mean = 0
Answer:
2
Step-by-step explanation:
(y2-y1)/(x2-x1)
m*thway can be used to double check
