3 years ago

Solve using elimination method. 4x-2y=10 2x+3y=1

Mathematics

1 answer:

Sidana [21]3 years ago

5 0

Answer:

x=2, y=-1

Step-by-step explanation:

Remember: Multiply each equation by a suitable number so that the two equations have the same leading coefficient. Then, go from there.

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Corrie breathed 1 × 107 times in a year. She blinked 8 × 106 times that year. How many more times did Corrie breathe in a year t

Mkey [24]

Answer:

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Step-by-step explanation:

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3 years ago

An artist cuts 4 squares with sides of length x ft from the corners of a 12 ft-by-18 ft rectangular piece of sheet metal. She be

ehidna [41]

Answer:

$V = 216x - 60x^2 + 4x^3$

Step-by-step explanation:

The volume V of the fountain is equal to:

V = L*W*h

Where L is the lenght of the fountain, W is the width of the fountain and h is the high of the fountain

We already know that h is equal to x. On the other hand, if we cut a square with side of length x, L and W are calculated as:

L = 18 - 2x

W = 12 - 2x

So, replacing L, W and h on the equation of the volume, we get:

V = (18-2x)*(12-2x)*x

Finally, simplifying the function we get:

$V = ((18*12)+(18*(-2x))+(-2x*12)+((-2x)*(-2x)))*x$

$V = (216-36x-24x+4x^2)*x\\V = (216-60x+4x^2)*x\\V = 216x - 60x^2 + 4x^3$

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4 years ago

What is the product?

kirill [66]

I think is the answer because the right side =0 and so basically your left with the left side. 6(x² - 1)

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3 years ago

Did I do this right?

Over [174]

Answer:

it must be yes!

Step-by-step explanation:

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3 years ago

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