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3 years ago

Expand and simplify (x + 11)(x + 11)

Mathematics

1 answer:

labwork [276]3 years ago

6 0

Answer:

Expand: x² + 11x + 11x + 121

Simplify: x² + 22x + 121

Step-by-step explanation:

To expand this, you can use the FOIL technique:

First terms

Outer terms

Inner terms

Last terms

(x+11)(x+11)

F - x*x = x²

O - x*11 = 11x

I - 11*x = 11x

L - 11*11 = 121

Put these numbers together (expanded) to get:

x² + 11x + 11x + 121

Put the common terms together (simplify) to get:

x² + 22x + 121

Note:

Not sure if you need this info, but (x + 11)(x + 11) is the same as (x + 11)².

The numbers need to be in the order I put them in because you are supposed to place them in order greatest to least degree.

Hope it helps!

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Answer:

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Step-by-step explanation:

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2 years ago

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Can you please help me get this done it’s due TOMORROW!

siniylev [52]

Answer:

Hi , the answer is 280-140/ 4-2 = 140/2

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Step-by-step explanation:

we will take a 2 point from the graph

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b .

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3 years ago

A train is traveling at a constant speed of 105 miles per hour. How many feet does it travel in 3 seconds? Remember that 1

ipn [44]

Answer:

in 3 seconds the train should travel 462 feet

Step-by-step explanation:

So, first, we convert the miles into feet.

105 x 5280 = 554400

This means the train travels 554400 feet per hour.

then, we convert the hour, into second.

Since an hour has 60 minutes, and a minute has 60 seconds, we simply multiply:

1(hour) x 60(minutes) x 60(seconds) = 3600

So the train moves 554400 feet every 3600 seconds.

To get how many feet it travels in one second, we divide this by 3600.

3600/3600 and 554400/3600

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For every second the train travels 154 feet.

Then we simply multiply them by 3.

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So the train travels 462 feet every 3 seconds.

I tried to explain this as simply as I can.

I hope its all correct.

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3 years ago

-0.55 inches, 0.75 inches, 3.25 inches, -0.75 inches, and 0.7 inches.

aleksandrvk [35]

Answer:

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3 years ago

Haley is camping and needs to go from the campground to the waterfall. She hikes 3 miles north and 7 miles east. What is the sho

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Given that,

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3 years ago