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3 years ago

Im having issues with this, can i get help as soon as possible (image included)

Mathematics

1 answer:

BaLLatris [955]3 years ago

8 0

6^2+a^2=10^2
36+a^2=100
-36. -36
100-36=64
Square root of 64 is 8

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Please please help me with this question please now and show your steps

sattari [20]

Answer:

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Step-by-step explanation:

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3 years ago

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alexira [117]

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Step-by-step explanation:

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So we have a total of 10 persons.

The case where Xerxes arrives first and Regina arrives last is:

We have 10 slots, each slot corresponds to who arrived in which time.

For the first slot we have only one option, this is Xeres.

For the next slot we have 8 options (because Xeres already arrived, and Regina must arrive at last)

For the next slot we have 7 options.

for the next one we have 6 options, and so on.

So the combinations are:

C = 1*8*7*6*5*4*3*2*1*1 = 40320

Now, the total number of combinations is:

for the first slot we have 10 options, for the second we have 9 options and so on.

c = 10*9*8*7*6*5*4*3*2*1 = 725760

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4 years ago

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tiny-mole [99]

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<h2>Answer:</h2>

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