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3 years ago

What is -2 sqrt20 - sqrt125

Mathematics

1 answer:

alexdok [17]3 years ago

5 0

Answer:

-9sqrt(5)

Step-by-step explanation:

-2 sqrt20 - sqrt125

Lets simplify the square roots

sqrt(ab) = sqrt(a)sqrt(b)

-2 sqrt(4) sqrt(5) - sqrt(25) sqrt(5)

-2 *2sqrt(5) - 5sqrt(5)

-4sqrt(5) -5sqrt(5)

-9sqrt(5)

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Read 2 more answers

How many times greater was the temperature in Miami (45) than the lowest in San Diego (25)

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Answer:

<em>The temperature in Miami is 9/5 times the temperature in San Diego.</em>

Step-by-step explanation:

<u>Ratios</u>

To compare the temperature in Miami (45) with the temperature in San Diego (25), we use the division or ratio between both numbers:

$\displaystyle \frac{45}{25}$

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3 years ago

8 fewer than the sum of 14 and a number?

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