the width of a rectangle is fixed at 8ft. what lengths will make the perimeter at least 200 ft at most 200

Answers

Answer 1
Answer:  it will be 2(1+8)<=200

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Help please............​

The scores on a test are normally distributed. The mean of the test is 750 and the standard deviation is 70. By using the Empirical rule, what scores fall 3 standard deviations from the mean?

a.610 and 820

b.610 and 960

c.680 and 820

d.540 and 960

Answers

I think it will be B 610 and 820 but im not sure.
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~Cupcake

-J=34

Help please please ​

Answers

the answer is -34
this is because you multiple both sides by -1 and that would make 34 negative and -j positive

Answer:

-34

Step-by-step explanation:

Which expression is the greatest common factor of the two addends in 18x + 30x2?

Answers

Answer:

The answer is 6x

Step-by-step explanation:

Step-by-step explanation:

I think common factors are

18 = 1 2 3 6 9 18

30 = 1 2 3 10 15 30

So highest common factor is 3

18x + 30x2

3x (6 + 10x)

What is the square root of 64y16?
o 44
O 4y
o 8
o gy

Answers

Answer:

B is the answer of the question

Answer:

The answer is 4y8

Step-by-step explanation:

Dind the elapsed time the hours and minuts​

Answers

Answer:

pretty sure the answer is 5 hours and 30 minutes

In a survey of students, 60% were in high school and 40% were in middle school. Of the high school students, 30% had visited a foreign country. If a surveyed student is selected at random, what is the probability that the student is in high school and has visited a foreign country?

Answers

Answer:

The probability that the student is in high school and has visited a foreign country is 0.18.

Step-by-step explanation:

We are given that in a survey of students, 60% were in high school and 40% were in middle school.

Of the high school students, 30% had visited a foreign country.

Let the Probability that students were in high school = P(H) = 60%

Probability that students were in middle school = P(M) = 40%

Also, let F = event that students had had visited a foreign country

So, Probability that high school students had visited a foreign country = P(F/H) = 30%

Now, probability that the student is in high school and has visited a foreign country is given by = Probability that students were in high school * Probability that high school students had visited a foreign country  

            =  P(H)  *  P(F/H)

            =  0.60  *  0.30

            =  0.18 or 18%