2 to the second power times a to the negative four power
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four times a to the negative four power
2(2)*a(-4)
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4a(-4)
Or if you can't use negatives
4
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a(4)
Four overtop a to the fourth power
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The ratio would be written as 2:3 because there are 2 girls for every 3 boys
4x + 3y = 5...(1)
2x + 3y = 1...(2)
(2)*2:
4x+6y=2...(3)
(1)-(3):
4x+3y-(4x+6y)=5-2
4x+3y-4x-6y=3
-3y=3
y=-1
By sub. y=-1 in (2), we have
2x+3(-1)=1
2x-3=1
2x=4
x=2
The solution is x=2,y=-1
Answer:
6x^2+x+7
Step-by-step explanation:
(3x^2+3)+(3x^2+x+4)
6x^2+3+x+4
6x^2+x+7
