3 years ago

Which set of ordered pairs does not represent a function?

Mathematics

1 answer:

Daniel [21]3 years ago

3 0

Answer:

Step-by-step explanation:

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Find the distance between (-10,-7),(-8,1)

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Answer:

6.325

Step-by-step explanation:

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3 years ago

A ticket to a particular theme park regularly costs $84.99, however the theme park is running a spring break special for 15% off

Ilya [14]

Answer: 306.30

Step-by-step explanation:

DiscountPrice = 84.99 - (84.99 x 0.15)

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3 years ago

Read 2 more answers

If a = √3-√11 and b = 1 /a, then find a² - b²

Serga [27]

If $b=\frac1a$ , then by rationalizing the denominator we can rewrite

$b = \dfrac1{\sqrt3-\sqrt{11}} \times \dfrac{\sqrt3+\sqrt{11}}{\sqrt3+\sqrt{11}} = \dfrac{\sqrt3+\sqrt{11}}{\left(\sqrt3\right)^2-\left(\sqrt{11}\right)^2} = -\dfrac{\sqrt3+\sqrt{11}}8$

Now,

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

and

$a - b = \sqrt3 - \sqrt{11} + \dfrac{\sqrt3 + \sqrt{11}}8 = \dfrac{9\sqrt3 - 7\sqrt{11}}8$

$a + b = \sqrt3 - \sqrt{11} - \dfrac{\sqrt3 + \sqrt{11}}8 = \dfrac{7\sqrt3 - 9\sqrt{11}}8$

$\implies a^2 - b^2 = \dfrac{\left(9\sqrt3 - 7\sqrt{11}\right) \left(7\sqrt3 - 9\sqrt{11}\right)}{64} = \boxed{\dfrac{441 - 65\sqrt{33}}{32}}$

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2 years ago

Consider this system of linear equations:

Hatshy [7]

I believe the answer is D. because -12 + -1 equal -13

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3 years ago

What is the first operation you start with when solving

Alex17521 [72]

The correct answer is B addition
You will add 4 to both sides then the equation will be 2x=5

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3 years ago