8x+16=8x-16 is no solution because it is 32=0
-3x-17=-(17+3x) is infinitely many solutions because it is 0=0
9x+27=27 is one solution because it is x=0
2x-6=6+2x is no solution -12=0
Answer:
Both a = −4 and a = −1 are true solutions
Step-by-step explanation:
Given
Required
The true statement about the solutions
We have:
Square both sides
Collect like terms
Expand
Factorize
Factor out a + 4
Split:
Solve:
Step-by-step explanation:
A.) Ok, so the mean price for Southtown is 72,800.
And the mean price for middle town is 54,900
So Southtown has the higher mean price.
Explanation:
To find the mean. You must first add up all the numbers, then divide the total by how many numbers you added up.
72,000 + 50,000 + 68,000 + 93,000 + 81,000 = 364,000
Then,
364,000/ 5 = 72,800
B.) It is 17,900
Explanation:
72,800 - 54,900 = 17,900
Hope this helps you out!!! : )
Answer:
x = ± 2
Step-by-step explanation:
Given
2x² + 11 = 131 ( subtract 11 from both sides )
2x² = 120 ( divide both sides by 2 )
x² = 60 ( take the square root of both sides )
x = ± = ± = ± 2