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Sphinxa [80]
2 years ago
13

A committee must be formed with 4 teachers and 7 students. If there are 9 teachers to choose from, and 8 students, how many diff

erent ways could the committee be made?
Mathematics
1 answer:
GrogVix [38]2 years ago
3 0
Adaptations as compromises Adaptations can so
as compromises. One example of an adaptive con
bear's "thumb.' Modern pandas have five digits th
and a sixth digit that functions like a thumb. This
bone. Ancestral pandas with bigger wrist bones hac
ing and eating their food. Over time, this adaptati
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The times of the runners in a marathon are normally distributed, with a mean of 3 hours and 50 minutes and a standard deviation
balu736 [363]

Answer: 0.16

Step-by-step explanation:

Given that the run times provided are normally distributed ;

Mean(x) of distribution = 3 hours 50 minutes

Standard deviation(s) = 30 minutes

The probability that a randomly selected runner has a time less than or equal to 3 hours 20 minutes

3 hours 20 minutes = (3 hrs 50 mins - 30 mins):

This is equivalent to :

[mean(x) - 1 standard deviation]

z 1 standard deviation within the mean = 0.84

z, 1 standard deviation outside the mean equals:

P(1 - z value , 1standard deviation within the mean)

1 - 0.8413 = 0.1587

= 0.16

7 0
3 years ago
Insert grouping symbols so that the given expression has a value of 25. 12 – 7 + 2 • 4 + 6
katovenus [111]
(12-7)+2(4+6) is the one thats value is 25
4 0
3 years ago
Pls help me with this its the last question
andreev551 [17]

Answer:

10y+5n+3/6 im not too sure but I think its correct

btw envision gives you a try again

3 0
3 years ago
In Crestview Middle School, 12 out of 16 students are right handed. If there are 400 students in the school, how many are right
DerKrebs [107]

Answer:

the answer is 300

Step-by-step explanation

there are 16 people so we divide that by the total number of students

400 divided by 16 = 25

since there are 12 right handed in each group we multpily it by 12

25 x 12 = 300

and theres your answer!

7 0
3 years ago
20 pts awarded and brainliest chosen<br><br>Which of the following is the solution to ?
Dvinal [7]

Answer:

B.

Step-by-step explanation:

The answer is B

5 0
3 years ago
Read 2 more answers
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