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FinnZ [79.3K]
3 years ago
12

At what point do the lines y= 2x + 3 and y = 5x - 9 intersect? ​

Mathematics
1 answer:
QveST [7]3 years ago
4 0

Answer:

(4,11)

Step-by-step explanation:

y=2x+3

y=5x-9

the first equation is equal to the second equation so

2x+3=5x-9

put like terms together

2x-5x= -9-3

-3x= -12

divide both sides by -3

.•.x=4

now, use the value of x to find the value of y like this:

y=2x+3 (x=4)

y=2(4)+3

y=8+3

y=11

therefore, the two lines intersect at the point (4,11)

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4/10 + 40/100 = ? Help please
Kobotan [32]

Answer:

4/10 is the same as 40/100

there fore 4/10+40/100=40/100+40/100=

80/100

hope it helps :)

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2 years ago
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Answer:

Step-by-step explanation:

1)

(x-3)/18=12/9, cross multiply

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9x-27=216, add 27 to each side

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x=27

2)

(x-16)/(x+6)=3/5, cross multiply

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3)

Since the triangles are similar we can say that

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7 0
2 years ago
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URGENT I HAVE ALMOST 0 TIME LEFT I NEED LAST MINUTE HELP
jonny [76]

Answer:

The zeros are the points where the parabola intercepts the x-axis.

\sf x = 7 \implies x - 7 = 0

\sf x = 1 \implies x - 1 = 0

\sf \implies y = a(x - 7)(x - 1)  where a is some constant

If the parabola passes through point (3, 4) then:

\sf \implies a(3 - 7)(3 - 1) = 4

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\sf y = -\dfrac12(x - 7)(x - 1)

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1 year ago
I need help asap with number four please help me I'll give points
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dedylja [7]
A pythagoras triplet is a set of three numbers ... not just any three numbers,
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If they're related in that way, then they can be the lengths of the sides of a
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