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Fudgin [204]
3 years ago
13

Distribute and simplify √3 (-2+√20)

Mathematics
1 answer:
LiRa [457]3 years ago
5 0

Answer:

<h2>-2√3 + 2√15</h2>

Step-by-step explanation:

√3 (-2+√20) = √3×(-2) + √3×√20

                     = -2√3 + √3×√(4×5)

                     = -2√3 + √3×√4×√5

                     = -2√3 + √3×2×√5

                     = -2√3 + 2√15

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Explanation:
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4 0
1 year ago
Hi guys, I really need help, I reckon this is easy for you but I'm low-key disabled and need help with this question so please h
serious [3.7K]

Answer:

15, 8, 66%, 40

Step-by-step explanation:

Hi! ok so in ogive charts its really about finding the corresponding data points and sometimes it's a lot of estimation so these answers may not be exact but they'll be close.

In the image, you'll see a bunch of lines, basically what youre doing is finding the corresponding frequency of the dollars or vice versa.

<em>question a)</em>

50 dollars or less, so the area of 50 dollars and below that.

from the chart we can see that this lines up to around 15 people.

<em>question b)</em>

now this one is a little bit more challenging, but you can use the same process as you did for the first question. so we can see who spent 100 dollars or less. this value is around 42 (just from looking at the graph)

<em>we know if you didn't spend 100 dollars or less, you must have spent more than that. </em>

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around 8<u> people</u> spent 100 dollars or more.

<em>question c)</em>

basically the same question as the first but more calculations are involved. from the graph we can see around 33 people spent 80 dollars or less. but the question is asking the percentage. so what percent of 50 (people) is 33.

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<em>question d)</em>

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50 times 0.8 = 40

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Step-by-step explanation:

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