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grigory [225]
3 years ago
6

Which choice is equivalent to the expression below?​

Mathematics
2 answers:
aev [14]3 years ago
6 0
B because when you calculate it that’s what comes up
Jet001 [13]3 years ago
4 0
B because when you calculate it it should be it
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A meter stick perpendicular to the ground casts a 1.5 meter shadow at the same time a telephone pole casts a shadow that is 9 me
snow_lady [41]
The height of the telephone pole = 9 / 1.5 = 6 meters
7 0
3 years ago
A research team conducted a study showing that approximately 20% of all businessmen who wear ties wear them so tightly that they
ch4aika [34]

The probabilities that the at least one tie is too tight is 0.878 and more than two ties are too tight is 0.323 and none are too tight is 0.122 and at least 18 are NOT too tight is 0.67.

According to the statement

We have given that the in a survey showing that the approximately 20% of all businessmen who wear ties wear them so tightly that they actually reduce blood flow to the brain.

And we have to find the probability on the some given conditions.

So, For this purpose, we know that the

The probability is the measure of the likelihood of an event to happen. It measures the certainty of the event.

Now,

A. Here n = 20, P = 0.1, And  X ≥ 1. Then

The probability that at least one tie is too tight P(≥ 1) = 1 - P(0)

P(≥ 1) = 1 - 0.12

P(≥ 1) = 0.878.

And

B. Here P(≤2) = 0.67 Then

The probability that more than two ties are too tight P(≥ 3) = 1 - P(≤2)

P(≥ 3) = 1 - 0.67

P(≥ 3) = 0.323

And

C. The probability that none are too tight P(0) = 0.122.

And

D. Here n =20, P = 0.1 and X≤2

The probability that at least 18 are NOT too tight P(X≤2) = 0.67.

So, The probabilities that the at least one tie is too tight is 0.878 and more than two ties are too tight is 0.323 and none are too tight is 0.122 and at least 18 are NOT too tight is 0.67.

Learn more about probabilities  here

brainly.com/question/24756209

Disclaimer: This question was incomplete. Please find the full content below.

Question:

A research team conducted a study showing that approximately 20% of all businessmen who wear ties wear them so tightly that they actually reduce blood flow to the brain, diminishing cerebral functions. At a board meeting of 15 businessmen, all of whom wear ties, what are the following probabilities

A. What is the probability that at least one tie is too tight?

B. What is the probability that more than two ties are too tight?

C. What is the probability that none are too tight?

D. What is the probability that at least 18 are NOT too tight?

#SPJ4

4 0
2 years ago
Which is NOT true?<br> 9 + 4 = 17 - 4<br> 8 + 7 = 14 + 3<br> 11 = 19 - 8<br> 5 + 8 = 20 - 7
Fynjy0 [20]
8+7 = 14+3 is the false answer
4 0
2 years ago
If np &gt;5 and nq &gt;5, estimate P (fewer than 5) with n=13 and p= 0.6 by using the normal distribution as an approximation to
bogdanovich [222]
Sorry i cant exactly help you with this one because im in 6th grade so i dont really know problems like this yet.
5 0
3 years ago
PLS I NEED HELP ASAP I DONT HAVE TIME IT ALSO DETECTS IF IT RIGHT OR WRONG.
7nadin3 [17]

12 inches, 180/30 is 6 and 2x6 is 12

8 0
3 years ago
Read 2 more answers
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