Answer:x²-2x-8
X²-2x=8
X²= -2x + (-1)² = 8 + (-1)²
X²= -2x + 1 = 8 + 1
X²= -2x + 1 = 9
(X-1)² = 9
√(x-1)² = √9
X-1 = ± 3
X= 1 + 3= 4
X= 1 - 3= -2
X= 4 or X= -2
Step-by-step explanation:
Answer:
1. 8.4 2. 15
Step-by-step explanation:
1. 4x+8y= 40
wen y= 0.8
4x+8×0.8=40
4x=40-8×0.8
4x= 40- 6.4= 33.6
....x= 33.6/4 = 8.4
2. 3a+b= 54
wen b= 9
3a+ 9= 54
3a= 54- 9
3a=45
.....a = 45/3 = 15
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This can't work because if there are 60 cars that means there are 240 car wheels and then 25 bikes means 50 bike wheels for a total of 290 wheels, if there was 1 more car then it would be 86 cars and motorcycles with 294 wheels or 2 more bikes would mean 87 cars and motorcycles with 294 wheels
Given that the basket of watermelons sells for $9 before tax and the tax rate is 9%.
The tax on the basket of watermelons is given by

Therefore, the total price Tiffany pays for the basket of watermelons is $9 + $0.81 = $9.81
Answer:
Part 1) 
Part 2) 
Step-by-step explanation:
The equation of the line in point slope form is

we're going to analyze two cases
<em>First case</em>


substitute

therefore
y plus 6 equals StartFraction 2 Over 5 EndFraction left-parenthesis x plus 2 right parenthesis
<em>Second case</em>


substitute

therefore
y plus 6 equals StartFraction 5 Over 2 EndFraction left-parenthesis x plus 2 right parenthesis