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Paraphin [41]
3 years ago
9

A group of six tourists arrive at an airport gate 15 minutes before flight time, but only two seats are available. How many diff

erent groups of two can get on the plane? How many different groups of two cannot get on the plane?
Mathematics
1 answer:
sergiy2304 [10]3 years ago
6 0
You need to calculate how many 2 person combinations can be made from 6.
The formula is n! / [r! * (n-r)!]
6! / [2! * 4!] =
6 * 5 * 4! / 2! =
15
The answer to the second part of the question is also 15.
Source:
http://www.1728.org/combinat.htm
 

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Order each set of numbers from least to greatest.<br><br><br> PLZ HELP ASAP
Wittaler [7]

Answer:

<h3><u>7. Ans ;</u></h3>

\frac{41}{3}  < 14 <  \sqrt{200}

<h3><u>8</u><u>.</u><u> </u><u>Ans</u><u> </u><u>;</u></h3>

<u>0.6 <  \frac{2}{3}  <  \sqrt{ \frac{9}{16} }</u>

Step-by-step explanation:

<h3><u>7. Ans ;</u></h3>

\sqrt{200}  = 10 \sqrt{2}  = 14.1 \\ 14 = 14 \\  \frac{41}{3}  = 13.6

So ;

\frac{41}{3}  < 14 <  \sqrt{200}  \\ 13.6 < 14 < 14.1

<h3><u>8. Ans ;</u></h3>

\frac{2}{3}  = 0.66 \\  \sqrt{ \frac{9}{16} }   =   \frac{3}{4}  = 0.75 \\ 0.6 = 0.6

So ;

0.6 <  \frac{2}{3}  <  \sqrt{ \frac{9}{16} }  \\ 0.6 < 0.66 < 0.75

I hope I helped you^_^

6 0
2 years ago
If p= 3 and q= -3, find the value of:
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Answer:

119 is the answer

Step-by-step explanation:

use sum of angles on a straight line

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