3 years ago

Which of the following ordered pairs represents the solution to the system given below?

Mathematics

1 answer:

kupik [55]3 years ago

3 0

I am 100% sure it is (3,21) I hope I helped you and I hope you have a great reast of the week and weekend

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95% of 7 year old children are between inches

Oduvanchick [21]

Answer:

7 year old boys: 45-53 inches

7 year old girls: 45-52 inches

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Yuki888 [10]

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Four friends played a game. At the end of the game, their scores were -8, -2, 1, and -3. What is the lowest score?

kiruha [24]

Answer:

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Step-by-step explanation:

the lowest score is -3

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3 years ago

Help me please! i need to finish this assignment

netineya [11]

y = total snow accumulated

x = hours

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2 years ago

Simplify x^2-9 over x^2-3x

Alla [95]

Answer:

$\frac{x+3}{x}$ or x+3/x

Step-by-step explanation:

Using D.O.T.S (difference of two squares) formula :

$a^{2} -b^{2} = (a+b)(a-b)$

$x^{2} -9= (x+3)(x-3)$

Factorise the second bit:

$x^{2} -3x = x(x-3)$

Now write out this fraction:

$\frac{(x+3)(x-3)}{x(x-3)}$

Now we can cancel out repeated terms (x-3):

$\frac{(x+3)}{x}$
This is our final answer:

$\frac{x+3}{x}$

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