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Veseljchak [2.6K]
3 years ago
8

Need help with problem 20 and 22.

Mathematics
1 answer:
AlexFokin [52]3 years ago
5 0
20 is permutation
22 is counting principle
Hope it help.
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The regression equation y=0.5x+1.3 approximates the number of hours it takes to arrange a dinner event, y, given the number of p
Sphinxa [80]

It would be C.

For example, say 1 person comes. This would be x=1. Plugging this in gives you,

y=0.5 + 1.3

This shows that C is true since x is always going to be multiplied by 0.5.

1.3 would be the base amount of time it takes to arrange since if it the y-intercept.


5 0
3 years ago
What is <br><br><br> x+2/4 = 5/3
tamaranim1 [39]

Answer:

x=7/6

Step-by-step explanation:

x+2/4=5/3

  -2/4  -2/4

x=5/3-2/4=7/6

3 0
3 years ago
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Help pls what's the common difference
horsena [70]

<u><em>Answer: </em></u>

#9: 5

#10: -2

#11: -1.5

<em><u>Step-by-step explanation:</u></em>

<em><u>#9:</u></em> 3,8,13,18,23,(28),(33),(38),.. <em>Go up by 5 each time, so the common difference is </em><u><em>5</em></u><em>.</em>

<u><em>#10:</em></u> 11,9,7,5,3,(1),(-1),(-3),... <em>Go down </em><em>(-)</em><em> by 2 each time, so the common difference is </em><u><em>-2</em></u><em>.</em>

<u><em>#11:</em></u> 3, 1.5, 0, -1.5, -3, (-4.5), (-6), (-7.5),... <em>Go down </em><em>(-) </em><em>by 1.5 each time, so the common difference is </em><u><em>-1.5</em></u><em>.</em>

7 0
3 years ago
Maria needs to read a 1,500 page book in 10 days how many page does she has to read everyday
BabaBlast [244]
You simply do 1500 ÷ 10 to work out how many pages she needs to read in one day. The answer is 150 pages everyday.
3 0
3 years ago
I will mark you as brainliest
stich3 [128]

Answer:

w2+x6

Step-by-step explanation:

w+w+x+x+x+x+x+x will equal to w2+x6

5 0
3 years ago
Read 2 more answers
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