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3 years ago

Can anyone help me with this please and thank you

Mathematics

2 answers:

Ne4ueva [31]3 years ago

8 0

Answer:

x=0 x=7

Step-by-step explanation:

x^2 -3x = 4x

Subtract 4x from each side

x^2 -3x-4x=0

x^2 -7x = 0

Factor out an x

x(x-7) =0

Using the zero product property

x=0 x-7 =0

x=0 x=7

Mekhanik [1.2K]3 years ago

4 0

Answer:

x=0, 7

Step-by-step explanation:

x^2-3x=4x

x^2-7x=0

x(x-7)=0

x=0 or 7

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Answer:

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Step-by-step explanation:

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3 years ago

HELP ILL GIVE BRAINIEST THIS MY LAST QUESTION!

bazaltina [42]

Answer:

Jim = 6 hours
Regina = 12 hours
Together at same rate = 3 hours

Step-by-step explanation:

Let Jim's speed is J and Regina's speed is R and the work is W

We have:

(J + R)*4 = W
J = 2R

Substitute J with 2R:

(2R + R)*4 = W
12R = W

Regina needs 12 hours to complete work

and

Substitute R with J/2:

(J + J/2)*4 = W
6J = W

Jim needs 6 hours to complete same work

If Regina works as quickly as Jim:

J + R = 2J

Then

Jim can complete 1/6 of work in one hour, they both can complete twice work:

1/6*2 = 1/3

Time to complete work:

1: 1/3 = 3 hours

3 0

3 years ago

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Is this slope positive or negative?

iragen [17]

Answer:

positive

Step-by-step explanation:

y positive

x positive

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3 years ago

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4 years ago

What’s the x intercept and y intercept of 6x-5y=20

oksano4ka [1.4K]

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