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NeTakaya
2 years ago
14

Anyone know how to do this question? ​Pls help me all people

Mathematics
1 answer:
melomori [17]2 years ago
4 0

Try this solution, pls, modify it according to Your requirements:

\sqrt{12+6\sqrt{3}} -\sqrt{3-2\sqrt{2}} =a+\sqrt{b} -\sqrt{c};

\sqrt{(3+\sqrt{3})^2} -\sqrt{(\sqrt{2} -1)^2}=a+\sqrt{b} -\sqrt{c};

3+\sqrt{3}-\sqrt{2}+1=a+\sqrt{b} -\sqrt{c};

4+\sqrt{3} -\sqrt{2} =a+\sqrt{b} -\sqrt{c};

<u>a=4; b=3; c=2.</u>

additional:

\sqrt{12+6\sqrt{3}}=\sqrt{3^2+(\sqrt{3})^2+2*3*\sqrt{3}}=\sqrt{(3+\sqrt{3} )^2};

\sqrt{3-2\sqrt{2}} =\sqrt{(\sqrt{2})^2-2*1*\sqrt{2}+1^2}=\sqrt{(\sqrt{2} -1)^2}.

note, (√2-1) is the correct result instead of (1-√2). Short explanation: the result (√2-1) is positive value under the 'square root' sign, the negative values under the 'square root' sign are like restricted operation, finally only (√2-1) result is legal.

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3 years ago
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Answer:

Your required answer is option is {20}.

Step-by-step explanation:

Hey, there!!

The reason for above answer is we generally find intersections among the sets by extracting the common elements of the sets.

Here,

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<em><u>Hope it helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>

6 0
2 years ago
20 points!! help needed
dimaraw [331]

ANSWER

1 bell shape

2 to find probability when sampling

EXPLANATION

1 In a normal distribution, the mode,mean and median are equal.

As a result, the distribution is neither skewed to the right or left.

The shape of the normal distribution looks like a bell.

That is why it is also called the bell curve.

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7 0
3 years ago
What percentage of tickets sold were to seniors?
Kay [80]

<u>Given</u>:

The number of tickets sold to children =35+87+62=184.

The number of tickets sold to adults =56+177+205=438.

The number of tickets sold to seniors =32+14+54=100.

To determine the percentage of tickets sold to seniors we need to determine the total number of tickets sold to each category.

<u>To determine the percentage of tickets sold to seniors:</u>

In order to determine the percentage of tickets sold to the seniors, we divide the tickets sold to seniors by the total number of tickets sold to children, adults, and seniors.

This value is multiplied with 100 to convert it into a percentage.

The number of tickets sold to seniors =100.

The total number of tickets sold to children, adults, and seniors = 184+438+100=722.

The percentage of tickets sold to seniors = \frac{100}{722} (100) = 0.1385(100)=13.85\%.

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8 0
3 years ago
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slega [8]

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Step-by-step explanation:

Each term in the second factor is multiplied by each term in the first factor, that is

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= 21n² - 21n - 7n + 7 ← collect like terms

= 21n² - 28n + 7

6 0
2 years ago
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