Answer:
( x - 7)^2=1
Step-by-step explanation:
Starting with a $0 balance, we have:
$0.00 + $80.00 = $80.00
After the grocery store:
$80.00 - $25.50 = $54.50
After the paycheck deposit:
$54.50 + $650.00 = $704.50 total balance.
Two lines are perpendicular if and only if the product of their slopes is - 1.
So, you just need to find the slope of each line and find out the product of their slopes.
I will do one example for you.
L1: y = 3x + 5
L2: y = - 3x + 14
L3: y = -x/3 + 14
The slope of a line is the coefficient of the x.
So the slopes are:
L1: slope 3
L2: slope -3
L3: slope -1/3
So now multiply the slopes of each pair of lines:
L1 and L2: 3 * (-3) = - 9 => No, they are not perpendicular
L2 and L3: (-3) * (-1/3) = 1 => No, they are not perpendicular
L1 and L3: (3) * (-1/3) = -1 => Yes, they are penpendicular.
Answer:
21.5%
Step-by-step explanation:
60 and 112 repsectivly
60x(1.15) + 112(1.25)
69 (hehe nice) + 140
so 209 total honour roles compared to 172 last year
209/172 = 1.215116
subtract 1
.215116
multiply by 100
21.5116%
21.5%
- Gage Millar, Algebra 2 Tutor
