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Vikentia [17]
3 years ago
11

Thirty students took a calculus exam. Of the students who passed the exam, 8 students earned an A, 9 earned a B, 6 earned a C, a

nd 3 earned a D. If a single student is randomly chosen, what is the probability that the student did NOT pass the exam?
Provide the final answer as a fraction.
Mathematics
1 answer:
Alex73 [517]3 years ago
8 0

Answer:

4/30 or 2/15

Step-by-step explanation:

total of student with either A,B,C, or D equals 26 which means 4 did not pass

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A fund-raiser at the school raises $617.50. They sent $580.45 to local charities. What percent of the money went to charities?
Flauer [41]

<u>Answer:</u>

<h2>94% of the money went to charities.</h2>

6 0
3 years ago
9,10,12,x,20,25 find x the median is 14
boyakko [2]

Answer:

16

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Make a conjecture about the sum of the first 15 positive even number
erica [24]
I conclude that the sum will be even because any even number can be represented by 2n where n is a whole number
and even numbers are 2 apart, so
the sum of the first 15 are
2n+2(n+1)+2(n+2) etc until we get to 2(n+14)
we can undistribute the 2 from all of them and get
2(n+n+1+n+2...n+14)
and we are sure that whatever is in the parenthasees is a whole number because whole+whole=whole
therefor, the sum is even

if you did want to find the sum then
an=2n
the 15th even number is 30
the first is 2
S15=15(2+30)/2=15(32)/2=15(16)=240
which is even
6 0
3 years ago
Find the area of a parallelogram with the given vertices.
Aneli [31]
Check the picture below

notice the length of the base, and of the height/altitude

5 0
3 years ago
Read 2 more answers
Volume of a sphere with a diameter of 8 meters? Use 3.14 for pi.
kvasek [131]
Answer:   " 267.95 m³ " .
______________________________________________________
Explanation:
________________________________________________________


V = (4/3) * \pi * r³ ;

Given: diameter, "d" = "8 m" ;

radius, "r" = 8 m / 2 = 4 m " 
    
V = (4/3) * \pi * r³

V = (4/3) * \pi *(4m)³

V = (4/3) * (3.14) * 4³ * m³  ; 

V = (4/3) * (3.14) * (4*4*4) * m³ ;

V = (4/3) * (3.14) * (64) * m³ ;

V = 267.9466666666666667 m³ ;

round to: " 267.95 m³ " .
_________________________________________________________
4 0
3 years ago
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