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lora16 [44]
3 years ago
14

A college has over 5,000 students, 10, percent of which are left-handed. A new lecture hall is being planned that will seat 300

students, and college officials want to be sure there are enough left-handed desks. Suppose we randomly select groups of 300 students from this college. What are the mean and standard deviation of the number of left-handed students in each group of 300? You may round your answers to the nearest tenth.
Mathematics
1 answer:
Rama09 [41]3 years ago
4 0

Answer:

Mean: 30 students

Standard deviation: 5.2 students

Step-by-step explanation:

Khan

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You mow the lawn to earn your allowance. Each time you mow the lawn you earn 12$
BARSIC [14]

Answer:

12×m=d................

5 0
3 years ago
√180 can be expressed in the form p√q. where p and q are integers. Find the smallest value of p + q. ​
frutty [35]

Answer:  

The smallest value of p+q is 11

It happens when p = 6 and q = 5.

=======================================================

Explanation:

Let's factor 180 in such a way that exactly one factor is a perfect square.

I'll ignore the trivial factor of 1.

Here are the possible factorizations we could go with:

180 = 4*45

180 = 9*20

180 = 36*5

Those factorizations then lead to the following

\sqrt{180} = \sqrt{4*45} = \sqrt{4}*\sqrt{45}= 2\sqrt{45}\\\\\sqrt{180} = \sqrt{9*20} = \sqrt{9}*\sqrt{20}= 3\sqrt{20}\\\\\sqrt{180} = \sqrt{36*5} = \sqrt{36}*\sqrt{5}= 6\sqrt{5}\\\\

Then we have

p+q = 2+45 = 47

p+q = 3+20 = 23

p+q = 6+5 = 11

The smallest value of p+q is 11 and it happens when p = 6 and q = 5.

Side note: p+q is smallest when we go with the largest perfect square factor.

6 0
1 year ago
The total cost for a bucket of popcorn and 4 movie tickets is $56. The total cost for the same size bucket of popcorn and 6
ratelena [41]

Answer:

y = 12x + 8

Step-by-step explanation:

You can come to this conclusion by plugging in the amount of tickets bought as x in each equation, making sure the the answer y is $56 if x = 4 and $80 if x = 6

3 0
3 years ago
Read 2 more answers
Each leg of a 45°-45°-90° triangle measures<br> 14 cm. What is the length of the hypotenuse?
4vir4ik [10]

For a 45-45-90 angle the hypotenuse is s * square root of 2

so the hypotenuse is 14 * square root of 2 or 19.8

:)))

6 0
3 years ago
Read 2 more answers
Please help on this!!
dexar [7]
3^8=6,561
6,561 •3=19,683

The highest altitude of an altocumulus cloud is 19,683 feet.
8 0
3 years ago
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