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3 years ago

-194=-6x+2(-7x+13) ?????

Mathematics

1 answer:

lara31 [8.8K]3 years ago

8 0

Answer:l

Step-by-step explanation:

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Which of the following best defines an output

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2 years ago

-x/11 - 13 = -1 --- what does "x" equal

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Y=x+10 4x-3y=-23 what do y and x equal y is the top one x is the bottom one

DiKsa [7]

Answer:

Step-by-step explanation: Step 1: Multiply each equation by a suitable number so that the two equations have the same leading coefficient. ...

Step 2: Subtract the second equation from the first.

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3 years ago

How are exponents and radicals used to present roots of real numbers

MissTica

Answer:

$\sqrt[n]{a} =a^{\frac{1}{n}}$

Explanation:

Roots of real numbers can be represented by radicals or by exponents.

First, I present some examples to show how exponents and radicals are related, and then generalize.

$\sqrt{4}=4^{(\frac{1}{2})}=(2^2)^\frac{1}{2}=(2)^{\frac{2}{2}}=2^1=2\\\\\\\sqrt{25}=(25)^{\frac{1}{2}}=(5^2)^{\frac{1}{2}}=(5)^{\frac{2}{2}}=5^1=5$

$\sqrt[3]{8}=(8)^{\frac{1}{3}}=(2^3)^{\frac{1}{3}}=(2)^{\frac{3}{3}}=2^1=2$

When you write 5² = 25, then 5 is the square root of 25.

And in general, if n is a positive integer and $a^n=x$ , then $a$ is the nth root of x.

Also, if n even (and positive) and $a$ is positive, then $a^{\frac{1}{n}}$ is the positive nth root of $a$

Thus,

$\sqrt[n]{a} =a^{\frac{1}{n}}$

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3 years ago

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Answer:

When you see a number that goes through the line which is the y-aixs

Step-by-step explanation:

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2 years ago