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koban [17]
2 years ago
15

In a classroom of 20 students, 70% of them have brown eyes. If a teacher picks two students at random to pass out supplies, what

is the probability he chooses two students without brown eyes?​
Mathematics
1 answer:
antiseptic1488 [7]2 years ago
4 0

Answer:

6/20 can I get brainliest pleast

Step-by-step explanation:

\frac{70}{100}  \times 20 = 14 \\ 20 - 14 = 6 \\

there is a chance that the teacher will pick a student without brown eyes 6/20 times

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Solving Exponential and Logarithmic Equations In Exercise, solve for x.<br> 4e2x - 3 - 5 = 0
Deffense [45]

Answer:

Value of x will be 0.1515

Step-by-step explanation:

We have given the equation 4e^{2x}-3-5=0

We have top fond the value of x using exponent and logarithmic property

So 4e^{2x}-3-5=0

4e^{2x}-8=0

4e^{2x}=8

e^{2x}=2

Taking log both side

lne^{2x}=ln2

2x=0.3010

x = 0.1515

4 0
3 years ago
Brainliest)
kaheart [24]

Answer:

375 fishes

Step-by-step explanation:

12000 divided by 2 is 6000 1st year

6000 divided by 2 is 3000 2nd year

3000 divided by 2 is 1500 3rd year

1500 divided by 2 is 750 4th year

750 divided by 2 is 375 5th year

6 0
2 years ago
What is the zscore with a confidence level of 95% when finding the margin of error for the mean of a normally
Inessa [10]

Answer:

Z score with a confidence level of 95% is 1.96

Step-by-step explanation:

The computation of the z score with the confidence level of 95% is shown below:

While determining the margin of error for the normally distributed population from the sample, the z score of the confidence level of 95% is 1.96

The same is to be considered

Therefore the third option is correct

3 0
3 years ago
Read 2 more answers
Need help with 9 (a and b) plzzzz
Yanka [14]
A) is 0.83 and idk how to do b)
8 0
2 years ago
Read 2 more answers
Answers for both boxes please for 25 points!​
MrRa [10]

Answer:

Step-by-step explanation:

you just need to add both equations

you will get 3y=12+6=18

3y=18

y=6

now replace y=6

3x+12=6

3x=6-12

3x=-6

x=-2

(-2,6)

5 0
3 years ago
Read 2 more answers
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