Answer:
C, Plus or minus 3
Step-by-step explanation:
to solve 3x² - 27 = 0, we want to get the x by itself, so lets add 27 to both sides.
3x² = 27 < divide both sides by 3 to get x alone
3x²/2 =x²
27/3 = 9
x² = 9 < we can use the square-root property and square both sides of the equation to get x alone. we use the ± because there are 2 possible solutions to a square rooted number
√x² = x
√9 = 3
x = ±3
looking at our answer choices, the correct answer is C
I think the answer is $1250, but I'm not pretty sure.
Hope that helps!
Answer:
7 hours
Step-by-step explanation:
90 divided by 5 is 18 so 126 divideded by 18 is7
Answer:
the vertical line test proves that it is not a function because there are two y values for 1 x value
Step-by-step explanation:
Step-by-step explanation:
125+680w<u>></u>2,500+450w