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3 years ago

HELP IM DOING A MATH TEST PLSSSS 25 PTS

Mathematics

1 answer:

Vilka [71]3 years ago

3 0

The answer is 5x^3/y^6 because:

the x to the negative 2 power goes up to be x to the positive 2 power and adds with 1 to be 3

And y at the top comes to the bottom to by y to positive 1 power and adds with y^5 to be y^6 power

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maddie is reading a book with 300 pages. she has read 126 pages so far. how many pages does Maddie have left to read

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3 years ago

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40 divided by 13.6 ?

Sonbull [250]

2.94117647059

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Decide which part of the quadratic formula tells you whether the quadratic equation can be solved by factoring.

JulijaS [17]

Answer:

a) $b^2-4ac$

b) 25

Step-by-step explanation:

a) The quadratic formula is $x=\frac{-b\pm \sqrt{b^2-4ac} }{2a}$ .

The portion under the radical sign ( $b^2-4ac$ ) is called the discriminant or determinant.

It tells us that, the quadratic equation can be solved by factoring, if its value is a perfect square.

b) The given quadratic equation is $2x^2+7x+3=0$ .

By comparing to $ax^2+bx+c=0$ , we have a=2, b=7, and c=3

We substitute these values to get:

$b^2-4ac=7^2-4(2)(3)$

$b^2-4ac=49-24$

$b^2-4ac=25$

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3 years ago

HELP IF YOU WANT BRAINLIST!!!!

Harrizon [31]

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3 years ago

The formula for the perimeter of a rectangle is P=2(l+w). Solve for l.

Readme [11.4K]

Answer:

l = $\frac{P-2w}{2}$

Step-by-step explanation:

Given

P = 2(l + w) ← distribute right side

P = 2l + 2w ( subtract 2w from both sides )

P - 2w = 2l ( isolate l by dividing both sides by 2 )

$\frac{P-2w}{2}$ = l

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