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Arte-miy333 [17]
3 years ago
14

What is the following product?

Mathematics
2 answers:
Aleksandr [31]3 years ago
8 0
Using (a-b)^2 = a^2 - 2ab + b^2

so

(5√2 - 4√3)^2
= (5√2)^2 - 2 (5√2)(4√3) + (4<span>√3)^2
= 50 - 40</span><span>√6 + 48
= 98 - 40</span><span>√6

answer
D. last choice
</span>98 - 40√6
Inessa [10]3 years ago
5 0
The answer is 98-40 square root 6
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If the variance is 28 kg2 what is the standard deviation?
ikadub [295]

Answer:

The standard deviation is 5.29 kg.

Step-by-step explanation:

The standard deviation is the square root of the variance. Mathematically, we have that:

S(X) = \sqrt{V(X)}

In this problem, we have that:

V(X) = 28

So

S(X) = \sqrt{V(X)}

S(X) = \sqrt{28}

S(X) = 5.29

The standard deviation is 5.29 kg.

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3 years ago
At the start of the day there was 129.75 in the till one hour later there is 145.40 how much did the shop take in a hour
777dan777 [17]
At the start of the day, there was £129.75. Later, they made more money, so the <span>£145.50. To find the amount of change, you just need to deduct the number 129.75 from 145.50.

145.50 - 129.75 = 15.75

The shop made </span><span>£15.75 in one hour.</span>
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4 years ago
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Korolek [52]

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H

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muminat

Answer:

I think the answer is -32.

Step-by-step explanation:

I'm not sure.

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