3 years ago

The function y = 5x is graphed in the coordinate plane. Which point will not be on the line?

Mathematics

2 answers:

Elza [17]3 years ago

7 0

A (0, 5) is the answer...................

Mademuasel [1]3 years ago

6 0

I think your answer is A. (0,5)
Hope this helps!! Have a great day!! :)))

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For what value of k are the roots of the quadratic equation kx (x-2)+6=0 equal?

ser-zykov [4K]

Answer:

$\boxed{\sf k=6}$

Step-by-step explanation:

$\sf kx (x-2)+6=0$

Expand brackets.

$\sf kx^2 -2kx+6=0$

This is in quadratic form.

$\sf ax^2 +bx+c=0$

Since this is for equal roots:

$\sf b^2 -4ac=0$

$\sf a=k\\b=-2k\\c=6$

$\sf (-2k)^2 -4(k)(6)=0$

$\sf 4k^2-24k=0$

$\sf 4k(k-6)=0$

$\sf 4k=0\\k=0$

$\sf k-6=0\\k=6$

Plug k as 0 to check.

$\sf \sf 0x^2 -2(0)x+6=0\\6=0$

False.

So that means k must equal 6.

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3 years ago

Will give Brainliest if you answer all

oee [108]

What grade are you in so I know what level you are on to help

7 0

3 years ago

Find a polynomial that describes the area of the lawn which kevin has to mow in his front yard 6x+5,4x-9

Likurg_2 [28]

Answer:

$Area=24x^2-34x-45$

Step-by-step explanation:

Length and width of the yard are $(6x+5)$ and $(4x-9)$ .

$Area=length\times width\\\\Area=(6x+5)\times (4x-9)\\\\Area=24x^2+20x-54x-45\\\\Area=24x^2-34x-45$

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2 years ago

Rhett is solving the quadratic equation zero equals X2 minus 2X -3 using the quadratic formula which shows the correct substitut

Alina [70]

X^2-2x -3 =0
a =1 b =-2 and c = -3

x = - (-2) +/- sqrt (-2)^2 - 4(1)(-3)
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x = + 2 +/- sqrt [(4) - 4(-3)]
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x = +2 +/- sqrt [4 + 12]
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x = +2 +/- sqrt[16]
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x = +2 +/- (4)
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x = 2 + 4 or 2 -4
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x = 6/2 or -2/2

x = 3 or x = -1

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2 years ago

Please Help Me I will Give Brainliest!!!

Stels [109]

Answer:

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers