3 years ago

Can somebody please help me

Mathematics

1 answer:

Ksenya-84 [330]3 years ago

8 0

Answer:

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Step-by-step explanation:

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Which expression is equivalent to (7x+9y)2

Arada [10]

Answer:

$49x^2+126xy+81y^2$

Step-by-step explanation:

Use the square of a binomial theorem

$(a+b)^2$ = $a^2+2ab+b^2$

Now expand the given equation:

$(7x+9y)^2=49x^2+126xy+81y^2$

Hope this helps :)

Have a great day!

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3 years ago

Which of the following threats to biodiversity is a result of plants and animals introduced to an ecosystem where they are not n

Dahasolnce [82]

Invasive Species since they were brought into a habitat that they were not originally in.

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3 years ago

Read 2 more answers

a new car is purchased for 207000 dollars. the value of the car depreciates at 11% per year. what will the value of the car be,

kicyunya [14]

Depreciation of 11% per year means that the price is multiplied by 89% (0.89) every year. Do this 11 times or use exponents

Final price:
207000*(0.89^11) = 57446.083

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3 years ago

Between which two consecutive integers does <img src="https://tex.z-dn.net/?f=%5Csqrt%7B%7D%2012%5C%5C" id="TexFormula1" title="

Annette [7]

The most appropriate choice for square root will be given by-

$\sqrt{12}$ lies between 3 and 4

What is square root of a number?

Number raised to the power $\frac{1}{2}$ is the square root of the number.

Here

$\sqrt{12}\\ 2\sqrt{3}\\ 2*1.732\\3.464\\$

3.464 lies between 3 and 4

$\sqrt{12}$ lies between 3 and 4

To learn more about square root of a number, refer to the link:

brainly.com/question/3617398

#SPJ9

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1 year ago

Solve the equation <img src="https://tex.z-dn.net/?f=%5Cfrac%7Bn%7D%7B10%7D%20%2B8%3D17" id="TexFormula1" title="\frac{n}{10} +8

jonny [76]

Its 90 because 90 divided by 10 simplifies down to 9, and 9+8=17

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3 years ago