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irina [24]
2 years ago
7

The equation of a line is y=mx+ 4. What is the value of m if the line passes through point (−3, 7)?

Mathematics
2 answers:
il63 [147K]2 years ago
6 0

Answer:

m= -1

Step-by-step explanation:

plug in the coordinate (-3, 7) into y=mx+4 where (x, y)

7=-3m+4

solve for m and you get -1

:)

denpristay [2]2 years ago
3 0

Answer:

\huge\boxed{m=-1}

Step-by-step explanation:

We have

y=mx+4\\\\(-3,\ 7)

Put the coordinates of the given point to the equation of the line:

(-3,\ 7)\to x=-3,\ y=7\\\\7=-3m+4\qquad|\text{subtract 4 from both sides}\\\\7-4=-3m+4-4\\\\3=-3m\qquad|\text{divide both sides by (-3)}\\\\\dfrac{3}{-3}=\dfrac{-3m}{-3}\\\\-1=m\to m=-1

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The LCM of three numbers is 7920 and their GCD is 12. Two of the numbers are 48 and 264. Using factor notation find the third nu
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Answer:

The third number is 180.

Step-by-step explanation:

Let the third number be 9x where x is an integer.

48 = 2*2*2*2*3

264 = 2*2*2*3*11

9x = 3*3*x

2*2*2*2*3*3*11*x = 7920y where y is an integer

1584x = 7920y

so x = 7920y / 1584= 5y.

Now the GCD is 12  so x must have  4 as one of its factors.

Also x is a multiple of 5 so it could be 20 then y  would be 4.

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This checks out OK.

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3 years ago
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Igoryamba
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4 0
3 years ago
Read 2 more answers
What is the answer to (t+8)(-2)=12
Lunna [17]
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Answer:

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Step-by-step explanation:

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Let

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