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ruslelena [56]
2 years ago
15

What is -2 sqrt20 - sqrt125

Mathematics
1 answer:
alexdok [17]2 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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shtirl [24]

Answer:

y=x

Step-by-step explanation:

We want a line parallel to y =x+42

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3 years ago
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The sequence is increasing by the previous number multiplied by negative 3       (x -3). With this information, the correct answer would be A. -648, 1944, 5832
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3 years ago
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Which pyramids with base area B and height h have equal volumes?
Pachacha [2.7K]
Option A:

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Answer:

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Step-by-step explanation:

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the second sequence starts

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so, just by writing down a few elements you can see it already.

I knew it already before that just by thinking "the first sequence has only numbers that can be divided by 3. what is the first number of the second sequence that can be also divided by 3 ? oh, yeah, 36 !"

6 0
3 years ago
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