4 years ago

Can someone please solve these?

Mathematics

1 answer:

serg [7]4 years ago

4 0

Answer:

Step-by-step explanation:

1) √2 + 2√2 = ( 1 + 2 ) √2 = 3*√2 = 3√2

4) √8 + √2 = √2*2*2 + √2 = 2√2 + √2 = ( 2 +1 ) √2 = 3√2

7) 2√5 - √5 = (2 - 1)√5 = 1 √5

10 3√5 - 2√5 = (3 - 2) √5 = 1√5

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Joni climbed 230 feet up a hill and then rappelled down 300 feet into a valley.

Gnom [1K]

Answer:

230-300= -70

All you have to do is subtract :)

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4 years ago

Solve: 72x + 436= -96x + 1108 X=?

erastova [34]

72x + 436= -96x + 1108x

72x+436=1012x

436=1012x−72x

436=940x

436/940=x

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Hope this helps have a blessed and wonderful day!

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3 years ago

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alexira [117]

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3 years ago

For a Chinese New Year celebration, James and Zhou are making a dragon costume similar to the one shown above.

Lilit [14]

Answer:

C. 24 meters

Step-by-step explanation:

Given:

Total length of fabric required for the costume = 56.6 m

Length of fabric Zhou already has = 15 m

Length of fabric James just purchased = 17.6 m

To find how much more length of fabric is required to make the complete costume.

Solution:

Let the length of fabric in meters still required be = $x$

The total length can be given as :

⇒ $(15+17.6+x)\ m$

⇒ $(32.6+x)\ m$

The total fabric required = 56.6 m

So, the equation to find $x$ will be:

$32.6+x=56.6$

Subtracting both sides by 32.6

$32.6+x-32.6=56.6-32.6$

∴ $x=24$

Thus, 24 meters of fabric is still required to make the costume.

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3 years ago

Casey is taking pictures outdoors. She knows that the darker it is outside, the stronger she needs to set her flash

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Casey should know that the flash is the little lightning button on her phone.......or read the manual if she is using a camera.

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