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3 years ago

Solve the system of equations. y = 2x y = –x + 6 X= Y=

Mathematics

1 answer:

cupoosta [38]3 years ago

8 0

Answer:

x=2 y=4

Step-by-step explanation:

y = 2x

y = –x + 6

Set the two equations equal to each other

2x = -x+6

Add x to each side

2x+x =-x+x+6

3x = 6

Divide each side by 3

3x/3 = 6/3

x =2

Now find y

y = 2x

y =2(2)

y = 4

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What is the value of the 7 in the number 2 741 203<br><br> give your answer in number

Ivahew [28]

Answer:

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Step-by-step explanation:

0,000,000

0,700,000

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3 years ago

A circular pond is modeled by the equation x^2 + y^2= 225. A bridge over the pond is modeled by a segment of the equation x – 7y

serious [3.7K]

$x^2+y^2=225 \\
x-7y=-75 \\ \\
\hbox{solve the second equation for x:} \\
x-7y=-75 \ \ \ |+7y \\
x=7y-75 \\ \\
\hbox{substitute 7y-75 for x in the first equation:} \\
(7y-75)^2+y^2=225 \\
49y^2-1050y+5625+y^2=225 \\
50y^2-1050y+5625=225 \ \ \ \ \ \ \ \ \ |-225 \\
50y^2-1050y+5400=0 \ \ \ \ \ \ \ \ \ \ \ \ |\div 50 \\
y^2-21y+108=0 \\
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$x=7y-75 \\
x=7 \times 12 -75 \ \lor \ x=7 \times 9-75 \\
x=84-75 \ \lor \ x=63-75 \\
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3 years ago

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Paladinen [302]

Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers

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Kisachek [45]

Im not entirely sure but, if you're on plato answer D is correct

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3 years ago

Please I need help!!!!

Anettt [7]

Answer:

1st

Vertex

we have

f(x)=x²-18x+88

let

y=x²-18x+88

comparing above equation with ax²+bx+c

we get

a=1

b=-18

c=88

now

vertex(x,y)=(-b/2a,f(-b/2a))

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VERTEX(X,Y)=(9,7)

4 0

3 years ago