Answer:
$143.82
Step-by-step explanation:
423 x 0.34 = 143.82
423 + 143.82 = 566.82
7x-55/40-x = 1/2
14x-110 = 40-x
15x = 150
x = 10
GJ = 40-x = 40-10 = 30
The answer is 5 and six because you add
It is positive!
I hope you have a good rest of your day/night :)
Answer:
C
Step-by-step explanation:
Given
x² - 3x - 12 = 0 ( add 12 to both sides )
x² - 3x = 12
To complete the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(-
)x +
= 12 + ![\frac{9}{4}](https://tex.z-dn.net/?f=%5Cfrac%7B9%7D%7B4%7D)
(x -
)² =
( take the square root of both sides )
x -
= ±
= ±
( add
to both sides )
x =
± ![\frac{\sqrt{57} }{2}](https://tex.z-dn.net/?f=%5Cfrac%7B%5Csqrt%7B57%7D%20%7D%7B2%7D)
Then
x =
+
≈ 5.27 ( to the nearest hundredth )
x =
-
≈ - 2.27 ( to the nearest hundredth )