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joja [24]
3 years ago
11

You are planning to run the distance on both Thursday and Friday. Write and solve an equation to find the number of mi. you need

to run each day so you run a total of 13.1 miles over the five days.
Mon. 4.2
Tues. 1.6
Wed. 3.9
Thurs. x
Fri. x
Mathematics
1 answer:
galina1969 [7]3 years ago
5 0

after everything you've ran the total would be 9.7 but you'll need to run a total of 13.1 so you still need to run 3.4 miles so you Thursday and Friday you'll run 1.7 each.

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Step-by-step explanation:

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8 0
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NEED HELP HERE ASAP<br><br> 6. Find the cube roots of 27(cos 330° + i sin 330°).
VLD [36.1K]
<span>we have that

the cube roots of 27(cos 330° + i sin 330°) will be
</span>∛[27(cos 330° + i sin 330°)]

we know that
e<span>^(ix)=cos x + isinx
therefore
</span>∛[27(cos 330° + i sin 330°)]------> ∛[27(e^(i330°))]-----> 3∛[(e^(i110°)³)]
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<span>
the answer is 

</span>z1=3[cos 110° + i sin 110°]<span>

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</span>
7 0
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s2008m [1.1K]

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Since order matters here , so we use Permutation.

The permutation of n things taking r at a time is given by :-

^nP_r=\dfrac{n!}{(n-r)!}

Then, the number of different ways they place first, second, and third :_

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Hence, they can place first, second, and third in 120 different ways .

7 0
3 years ago
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