3 years ago

Please someone help.

Mathematics

2 answers:

Troyanec [42]3 years ago

7 0

1. 950
2. 608
3. 1976
4.2698
5. 1216

IgorLugansk [536]3 years ago

5 0

1. 950
2. 608
3. 1,976
4. 2,698
5. 1,216

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What is the completely factored form of 25x4 – 16y2?

erastovalidia [21]

Answer:

$(5x^2+4y)(5x^2-4y)$

Step-by-step explanation:

$25x^4-16y^2$ has the form $a^2-b^2$ known as a difference of squares. It factors into (a+b)(a-b). To find a and b you take the square root.

$\sqrt{25x^4} =5x^2$

$\sqrt{16y^2} =4y$

The factored for is (a+b)(a-b).

In this case, it is $(5x^2+4y)(5x^2-4y)$

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If you place a 45-foot ladder against the top of a 36-foot building, how many feet will the bottom of the ladder be from the bot

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4 years ago

Please someone answer for this question

Maslowich

First one is 5/3
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I don't understand???? I'll give the brainliest!!!!!

olasank [31]

Answer:

Option A is the correct option.

Step-by-step explanation:

${a}^{2} + {b}^{2} - 2ab \: \cos \: c \: = {c}^{2} \\ a = 4 \\ b = 5 \\ c = 2 \\ \\ 2ab \: cos \: c = {a}^{2} + {b}^{2} - {c}^{2} \\ \: \: \: \: \: \: \: \: = {(4)}^{2} + {(5)}^{2} - {(2)}^{2} \\ \: \: \: \: \: \: \: \: = 16 + 25 - 4 \\ \: \: \: \: \: \: = 41 - 4 \\ \: \: \: \: \: \: = 37$

Hope this helps...

Good luck on your assignment...

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3 years ago