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Step2247 [10]
3 years ago
15

A

Mathematics
2 answers:
atroni [7]3 years ago
7 0

Answer:

162/20 Would be your answer, however, it wouldn't make sense as you can not switch students into decimals. Therefore, you could make 7 classes of 20, and one of 22, and 6 classes of 20, and two of 21. Therefore, there are two combinations that are possible.

Step-by-step explanation:

Refer to the answer.

Lemur [1.5K]3 years ago
5 0

Answer:

56

Step-by-step explanation:

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A circle with an area 9pi has a sector with a central angle of 1/9pi what is the area of the sector
ludmilkaskok [199]

Answer:

½pi or 0.5pi units²

Step-by-step explanation:

Area : angle

9pi : 2pi

x : pi/9

9pi/2pi = x/(pi/9)

4.5 × pi/9 = x

x = ½pi or 0.5pi units²

8 0
3 years ago
Find the probability of at least 6 failures in 7 trials of a binomial experiment in which the probability of success in any one
ziro4ka [17]

The probability of at least 6 failures in 7 trials of a binomial experiment in which the probability of success in any one trial is 9% will be <u>0.000343311 %</u>

<h3>What is the probability?</h3>

Probability is synonymous with possibility. It is concerned with the occurrence of a random event.

Probability can only have a value between 0 and 1. Its simple notion is that something is very likely to occur. It is the proportion of favorable events to the total number of events.

No of failure,n = 7

No of trials,x≥6

A binomial probability is represented as;

\rm P(x) = nC_x p^z(1-p)^{n-r}

Substitute the given data;

P(x \geq 6) = 7C_6 \times 9^6 \times 91-9)^{7-6} +7C_7 (9)^7+(1-9)^{(7-7)}

\rm P(x \geq 6)  = 0.000000343311 \\\\ P(x \geq6)=0.000343311 \%

Hence,the probability of at least 6 failures in 7 trials of a binomial experiment in which the probability of success in any one trial is 9% will be <u>0.000343311 %</u>

To learn more about probability, refer to the link: brainly.com/question/795909.

#SPJ1

4 0
2 years ago
Point b has coordinates (-4,3 the y coordinate of point a is 8 the distance between point a and point b is 13 units what are the
zubka84 [21]
The possible coordinate of point a is (6,4)
8 0
3 years ago
What is the rate of change of y with respect to x for this function? How do I solve problems like this?
Vesnalui [34]
If i am doing this correct.

pick to points and use the distance formula\
Y2 - Y1
divided by
X2 - X1

so i picked the points
-2, 12
0, 3

this would mean
12-3
0-(-2)
which would be 

9
2

so 9/2 it isn't possible so it would stay as 9/2 which is your answer.. C

Hope this helps.!!!!
7 0
3 years ago
A. 25'<br> B. 10'<br> C. 15'<br> D. 20'
Arturiano [62]

Answer:

mathematics and I c.15 longer

5 0
3 years ago
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