2 years ago

What is 3x + 2 (x-y) ?

Mathematics

2 answers:

Maurinko [17]2 years ago

6 0

5x-2y

!!!!!!!!!!!!!!!!!!!!!!!!!!

AfilCa [17]2 years ago

3 0

Answer:

5x-2y

Step-by-step explanation: u multiply

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Does √(x) + √(x) = √(2x)?<br><br><br>If not please explain.

musickatia [10]

Answer:

You are correct.

Step-by-step explanation:

What you do is you add them together which is 2x and it stays in the square root. You are correct.

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3 years ago

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2 years ago

I do not understand

Ivenika [448]

A) 1
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2 years ago

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Help me out please?<br>chapter : exponents and powers

belka [17]

Answer:

$\frac{125}{27}$

Step-by-step explanation:

$\frac{2^{-4} \times 15^{-3} \times 625}{5^2 \times 10^{-4}}$

Lets expand all the composite numbers into prime numbers.

$=> \frac{2^{-4} \times (3^{-3} \times 5^{-3}) \times 5^4}{5^2 \times (2^{-4} \times 5^{-4})}$

Lets cancel $2^{-4}$ from numerator and denominator.

$=> \frac{3^{-3} \times 5^{-3} \times 5^4}{5^2 \times 5^{-4}}$

Using laws of exponents , lets solve this.

$=> \frac{3^{-3} \times 5^{(-3 + 4)}}{5^{( 2 - 4)}}$

$=> \frac{3^{-3} \times 5^{1}}{5^{-2}}$

$=> 3^{-3} \times 5^{[1 - (-2)]}$

$=> 3^{-3} \times 5^{3}$

$=> \frac{5^3}{3^3} = \frac{125}{27}$

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2 years ago

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two-fifths of the fish in Gary's fish tank are guppies. One fourth of the guppies are red. What fraction of the fish in Gary's t

Stells [14]

Two fifths are 4 one fourth is 2 so there are 2 red guppies the fraction that they are red is 2 over 4 the fraction that are not red are 2 over 4 too

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3 years ago

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