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Alik [6]
3 years ago
12

Can Someone Help Me Simplify These Expressions

Mathematics
1 answer:
Citrus2011 [14]3 years ago
7 0
-2k - (-7)k
= -2k + 7k
= 5k

-7(p + 2) + 9(p - 4)
= -7p - 14 + 9p - 36
= 2p - 50

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Y=12x+6<br> y=12x+3<br> y=12x-3<br> y=12x-6
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chubhunter [2.5K]

Answer: There are 6720 ways to award 5 distinct prizes.

Step-by-step explanation:

Given : Total number of contestants are entered = 8

The number of distinct prizes = 5

Since , the order of warding the prize matters , So we use Permutations.

The number of permutation of selecting r things out of n things = ^nP_r=\dfrac{n!}{(n-r)!}

Here , n= 8 and r=5

Then, the number of different ways 5  distinct prizes can be awarded

=^8P_5=\dfrac{8!}{(8-5)!}

=\dfrac{8\times7\times6\times5\times4\times3!}{3!}=6720

Hence, there are 6720 ways to award 5 distinct prizes.

3 0
3 years ago
0.92-0.51 plz help i dnt undersatnd
Mashutka [201]
The answer is 0.41 but what do you not understand? Hope I helped!

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