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krok68 [10]
2 years ago
7

Find the missing side length and show your work to be marked brainliest! (lots of points)

Mathematics
1 answer:
kow [346]2 years ago
4 0

Answer:

10 i think it is yea. so 10 is it

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Expand the polynomial and simplify: (4xy− 1 8 y^2)^2
Vinvika [58]

Answer: 4y^{2}(2x-9y)^{2}

Step-by-step explanation:

We have the following polynomial:

(4xy-18y^{2})^{2}

This is a polynomial of the form (a-b)^{2}=a^{2}-2ab+b^{2}. Following this rule to expand it, we have:

(4xy)^{2}-2(4xy)(18y^{2})+(18y^{2})^{2}

16x^{2}y^{2}-144xy^{3}+324y^{4}

Applying common factor 4y^{2}:

4y^{2}(4x^{2}-36xy+81y^{2})

Note the polynomial inside the parenthesis is a perfect square trinomial, which can be factored to(2x-9y)^{2}. Hence, the final simplification is:

4y^{2}(2x-9y)^{2}

3 0
3 years ago
Expand and simplify (x + 11)(x + 11)
labwork [276]

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!

6 0
3 years ago
What ratio is equivalent to 3:4
Rashid [163]

Answer:

A

Step-by-step explanation:

A) 30:40=3:4

B) 30:70=3:7

C) 2:1

D) 8:6=4:3

4 0
3 years ago
The average life expectancy in a certain country is 70.2 years. Estimate the country’s life expectancy in hours. Then use a calc
Debora [2.8K]
I believe it is 614,952 hours
8 0
3 years ago
What does (x-6) ( x-2) represent
Zanzabum

x^2-8x+12

Step-by-step explanation:

you foil them

3 0
3 years ago
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