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raketka [301]
3 years ago
6

You put the names of all the students in your class in a paper bag. There are 19 boys and 12 girls. If you draw a name at random

, what is P(boy’s name)?
Mathematics
2 answers:
Rom4ik [11]3 years ago
3 0

Answer:

19 to 12 is the answer

Step-by-step explanation:


kkurt [141]3 years ago
3 0

There are 19 boys, and 19+12=31 total number of students, therefore, the probability you are asking for is P=19/31.

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Which of the following is equal to the rational expression when x ≠5 or -3?
Wewaii [24]

Answer:

C

Step-by-step explanation:

8 0
3 years ago
I just want to make sure I am right.<br> Its Mathematics
docker41 [41]
It seems about right
8 0
3 years ago
The scores on an entrance exam to a university are known to have an approximately normal distribution with mean 65% and standard
emmasim [6.3K]

Answer:

The correct answer is - C. 24.1%

Step-by-step explanation:

Given:

mean μ = 65%

standard deviation δ = 7.1 %

solution:

Prob( X>70) = 1 - Prob(x<70)  

= P (x-μ/δ ≥ 70 -65/7.1)

= 1 - Prob( (70-65)/7.1)

= 1 - Prob ( z < 0.7042553)

= 0.24065

the percentage of students scoring 70 or more in the exam

= 24.065*100

= 24.1%

4 0
3 years ago
Please help meeeeeeeeeee
rodikova [14]

8-5=3 : This means you add three each time

f(5)=8+3=1

f(6)=11+3=14

hope this helps :)

if not snap chat has a feature in the search bar and you can get answers by that

4 0
3 years ago
Help I just not that smart ​
Lubov Fominskaja [6]

Answer:

1\frac{1}{9}  gallons of paint

Step-by-step explanation:

paint =

2/3 ---- 3/5

x ----  1

x = \frac{\frac{2}{3} }{\frac{3}{5} } =\frac{(2)(5)}{(3)(3)} =\frac{10}{9}

x=1\frac{1}{9}

Hope this helps

4 0
2 years ago
Read 2 more answers
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