2 years ago

Someone help me please

Mathematics

1 answer:

Rainbow [258]2 years ago

5 0

Answer:

Step-by-step explanation:

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3 years ago

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Can you help me? Please

Anni [7]

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Answer:

Step-by-step explanation:

For an even-index radical, ...

$\sqrt[n]{x^n}=|x|\qquad\text{n even}$

This lets us simplify the given expression as follows:

$\sqrt[4]{81x^6y^4}-|y|\sqrt[4]{x^6}-\sqrt[4]{16x^2}=\sqrt[4]{(3xy)^4x^2}-|y|\sqrt[4]{x^4x^2}-\sqrt[4]{2^4x^2}\\\\=3|xy|\sqrt[4]{x^2}-|xy|\sqrt[4]{x^2}-2\sqrt[4]{x^2}=\boxed{2|xy|\sqrt[4]{x^2}-2\sqrt[4]{x^2}}$

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2 years ago

Evaluate 3xy with an exponent of 2 y, if x=2 and y=5

Bogdan [553]

Answer:

145

Step-by-step explanation:

x = 2 , y= 5

Putting the values of x and y in the expression

=3(2) (5)^2-5

=3(2)(25)-5

=150 -5

=145

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2 years ago

Somebody help me please

Nookie1986 [14]

Answer:

Cannot pretty positive

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2 years ago

What is -0.8+1.4n=2+0.7n

Sergio [31]

Answer:

n=4

Step-by-step explanation:

To solve combine your like terms.

You can start by adding 0.8 to both sides and subtracting 0.7n from both sides.

$-0.8+1.4n=2+0.7n\\1.4n=2.8+0.7n\\0.7n=2.8$

Next, divide both sides by 0.7 to isolate for n.

$0.7n=2.8\\n=4$

6 0

2 years ago