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patriot [66]
3 years ago
6

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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The lengths of the sides of a triangle are 7, 24 and 25. Classify the triangle as acute, right, or obtuse. Choose the correct ty
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Answer:

Right angled triangle

Step-by-step explanation:

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7 0
2 years ago
How much would $300 invested at 4% interest compounded monthly be
Anna11 [10]

Answer:

$412.92

Step-by-step explanation:

You are going to want to use the compound interest formula, which is shown below.

A=P(1+\frac{r}{n} )^{nt}

<em>P = initial balance </em>

<em>r = interest rate </em>

<em>n = number of times compounded annually </em>

<em>t = time </em>

<em />

The first step is to change 4% into its decimal form:

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Now plug in the values:

A=300(1+\frac{0.04}{12})^{(12)8}

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8 0
2 years ago
the length of a rectangle is 2 units less than a number, and the width is 4 units more than the length. which of the following e
cestrela7 [59]
L=n-2, W=4+L=n+2

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3 years ago
Sonia bought 30 t shirts at a clothing store. 20% of the t shirts were blue and 1/2 of the t shirts were black. How many of the
Natasha_Volkova [10]
  • Answer:

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  1. Step-by-step explanation:
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5 0
3 years ago
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