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3 years ago

If x+ 1/x=8, find x^2+ 1/x^2

Mathematics

1 answer:

Paraphin [41]3 years ago

6 0

Dude please give me brainliest please :)
Also here’s the answer

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Give the function y=-5x+12, what is the output (y) when the input, x=-2?

artcher [175]

Answer:

y=22

Step-by-step explanation:

y=-5(-2)+12

y=10+12

y=22

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3 years ago

Find the reciprocal of the number.<br><br> 57

liberstina [14]

Answer:

$\frac{1}{57}$

Step-by-step explanation:

The reciprocal of a number is 1 / the number,

so the reciprocal of x is $\frac{1}{x}$ .

Hope this helps, let me know if you have any questions! :)

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3 years ago

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3 years ago

What is the following sum? 2 (RootIndex 3 StartRoot 16 x cubed y EndRoot) 4 (RootIndex 3 StartRoot 54 x Superscript 6 Baseline y

san4es73 [151]

Equivalent expressions are expressions that have the same value, and can be used interchangeably.

The result of the sum $2 (\sqrt[3]{16x^3y}) + 4 (\sqrt[3]{54x^6y^5})$ is $4x\sqrt[3]{2y} + 8x^2y\sqrt[3]{2y^2})$

The expression is given as:

$2 (\sqrt[3]{16x^3y}) + 4 (\sqrt[3]{54x^6y^5})$

Rewrite the expression as:

$2 (\sqrt[3]{16x^3y}) + 4 (\sqrt[3]{54x^6y^5}) = 2 (\sqrt[3]{2^4x^3y}) + 4 (\sqrt[3]{3^3 \times 2x^6y^5})$

Evaluate the roots

$2 (\sqrt[3]{16x^3y}) + 4 (\sqrt[3]{54x^6y^5}) = 2 (2x\sqrt[3]{2y}) + 4 (3x^2y\sqrt[3]{2y^2})$

Open the brackets

$2 (\sqrt[3]{16x^3y}) + 4 (\sqrt[3]{54x^6y^5}) = 4x\sqrt[3]{2y} + 12x^2y\sqrt[3]{2y^2})$

The above expression cannot be further simplified.

Hence, the result of the sum $2 (\sqrt[3]{16x^3y}) + 4 (\sqrt[3]{54x^6y^5})$ is $4x\sqrt[3]{2y} + 8x^2y\sqrt[3]{2y^2})$

Read more about equivalent expressions at:

brainly.com/question/2972832

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3 years ago

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Find the percent of markup. Round to the nearest tenth.<br> $33.50 to $63.00

pickupchik [31]

88.1% is the markup. Hope this helps!

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3 years ago

If x+ 1/x=8, find x^2+ 1/x^2​

If x+ 1/x=8, find x^2+ 1/x^2