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Travka [436]
3 years ago
5

Find (−3d2+10d−8)−(7d2−d−6). The difference is .

Mathematics
1 answer:
katovenus [111]3 years ago
3 0

-10d^2 + 11d - 2

To find this, distribute the - to 7d^2 - d - 6.

This will give you a new equation of:

-3d^2 + 10d - 8 -7d^2 + d + 6

Combine like terms to get the answer above.

Hope this helps!

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A bag contains 135 marbles some white and some transparent. The ratio of white marbles to transparent ones is 3 : 6. How many wh
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Answer:

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Step-by-step explanation:

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Total number of marbles will be =3k+6k=9k

So we have.

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Dividing both sides by 9.

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otez555 [7]

Answer:

y = (3/5)x+26/5 or 5y = 3x+26

Step-by-step explanation:

Applying,

The equation of a line in two point form

(y₂-y₁)/(x₂-x₁) = (y-y₁)/(x-x₁)............... Equation 1

From the question,

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Substitute these values into equation 1

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5y = 3x+6+20

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y = (3/5)x+26/5

Hence the equation of the line is y = (3/5)x+26/5 or 5y = 3x+26

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