2 years ago

Help quickly pls!!!

Mathematics

1 answer:

yan [13]2 years ago

4 0

Answer:

Step-by-step explanation:

treat the problem as an equation and solve for n, it is 4

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Multiply. <br> -3.9(-5.7)(3) <br> The product is:

scZoUnD [109]

Answer:

66.69

Step-by-step explanation:

You start off with -3.9 x -5.7 which gives you a positive, and that positive is 22.23, then you multiply that number by 3, and you get 66.69.

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2 years ago

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Solve -9/2y = 27/2 for y

slavikrds [6]

Answer: y = -3

I hope this helps you

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3 years ago

what is the simplified form of the following expression? Assume X 0 and y 0. 2(^4 sqrt 16 x) -2(^4 sqrt 2y )+3 (^4 sqrt 81x ) -4

eduard

For this case we have the following expression:

$2(\sqrt[4]{16x})-2(\sqrt[4]{2y})+3(\sqrt[4]{81x})-4(\sqrt[4]{32y})$

Rewriting the numbers within the roots we have:

$2(\sqrt[4]{2*2*2*2x})-2(\sqrt[4]{2y})+3(\sqrt[4]{3*3*3*3x})-4(\sqrt[4]{2*2*2*2*2y})$

Then, by properties of powers we have:

$2(\sqrt[4]{2^4x})-2(\sqrt[4]{2y})+3(\sqrt[4]{3^4x})-4(\sqrt[4]{2^42y})$

Then, by radical properties we have:

$2(2\sqrt[4]{x})-2(\sqrt[4]{2y})+3(3\sqrt[4]{x})-4(2\sqrt[4]{2y})$

Rewriting the expression we have:

$4\sqrt[4]{x}-2\sqrt[4]{2y}+9\sqrt[4]{x}-8\sqrt[4]{2y}$

Finally, adding similar terms we have:

$(4+9)\sqrt[4]{x}-(2+8)\sqrt[4]{2y}$

$13\sqrt[4]{x}-10\sqrt[4]{2y}$

Answer:

The simplified form of the expression is:

$13\sqrt[4]{x}-10\sqrt[4]{2y}$

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2 years ago

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Answer:

amanda: 18

Hong: 36

Bill: 26

Step-by-step explanation:

a+b+h=80

b=8+a

H=2A

a+8+a+2a=80

4a+8=80

a=18

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2 years ago

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aleksley [76]

Is the questions asking you to form an equation? or answer the problem?

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