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Mariulka [41]
3 years ago
11

Solve the system of linear equations by graphing. y=-x+4. y= 2x – 8

Mathematics
1 answer:
drek231 [11]3 years ago
7 0

Step-by-step explanation:

suppose,x=1,2 .so y=1+4=5,2+4=6...eq..(I)

and y=2×1-8=-6,y=2*×2-8=-4

now plot in graph where they intercept with each other i.e x and y

I could plot but it's difficult here..and remember u can suppose any point as x for y

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Find two numbers such that the sum of their squares is 100. The square of the larger number is equal to the sum of the product o
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Answer with Step-by-step explanation:

Let x and y are two  numbers

According to question

x^2+y^2=100....(1)

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x=4y+8x

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y=-\frac{7}{4}x

Substitute the value of y

x^2+(-\frac{7}{4}x)^2=100

x^2+\frac{49}{16}x^2=100

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x^2=\frac{16\times 100}{65}

x=\sqrt{\frac{1600}{65}}=\frac{40}{\sqrt{65}}=\frac{40}{65}\sqrt{65}=\frac{8}{13}\sqrt{65}

y=-\frac{7}{4}\times \frac{8}{13}\sqrt{65}=-\frac{14}{13}\sqrt{65}

3 0
3 years ago
(x - 2)2 + (y + 4)2 = 49
frez [133]

Answer:

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Step-by-step explanation:

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astra-53 [7]
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The price of a pair of pants is $29.95 and the sales tax is 5%.
Vika [28.1K]

Answer: $31.45

Step-by-step explanation:

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Answer:

A

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