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Korvikt [17]
3 years ago
7

What is the measure of ab?

Mathematics
1 answer:
Paul [167]3 years ago
4 0
I hope this helps you



Where's the question?
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A large community college has professors and lecturers the total number of faculty members is 136.The school reported that they
Alona [7]

Answer:

  48

Step-by-step explanation:

The ratio of professors to lecturers is ...

  P : L = 6 : 11

Then the ratio of professors to total faculty is ...

  P : (P+L) = 6 : (6+11) = 6 : 17

That is, professors make up 6/17 of the total faculty. Their number is ...

  P = (6/17)·136 = 48

The Community College employs 48 professors.

4 0
3 years ago
the brain volumes ​(​) of 50 brains vary from a low of to a high of . use the range rule of thumb to estimate the standard devia
Sloan [31]

The estimated standard deviation from the range rule is 145.5 cm3.As it is 29.8 cm3 smaller than the exact standard deviation, we consider that the estimation is not accurate enough.

Generally, brain volumes which are smaller than 921.1 cm3 can be considered significantly low and bigger than 1417.5 cm3 can be considered significantly high. Hence, brain volume of 1457.5 cm3 is bigger than the expected maximum, so it can be considered significantly high.

The calculation goes like this,

According to the range rule, the standard deviation and range, or the distance between the maximum and smallest value, are roughly inversely proportional:

s=R/4

If we have a sample of 50 brains volumes, and they range from 910 cm3 to 1492 cm3, we can estimate the standard deviation as:

s=max-min/4

s=1492-910/4=582/4=145.5

The exact standard deviation is 175.3 cm3.The difference is 175.3-145.5=29.8 cm3, so the estimation is not accurate enough.

The range rule of thumb states that we should anticipate a maximum value that is approximately two standard deviations above the mean and a lowest value that is approximately two standard deviations below the mean. The expected ranges are as follows given our mean volume of 1169.3 cm3 and standard deviation of 124.1 cm3:

Min= M-2s=1169.3-2*124.1=921.1

Max=M+2s=1169.3+2*124.1=1417.5

The brain capacity of 1457.5 cm3 can be regarded as significantly high because it is higher than the predicted maximum.

To know about standard deviation click here :

brainly.com/question/23907081

#SPJ4

5 0
9 months ago
In preparation for the Maths festival you are asked to work out how much water the drinks area will need for the event. The aren
Tresset [83]
Total liters of water needed = number of attendee x water                            consumption/attendee wherenumber of attendee = 7000 attendeewater consumption/attendee = 0.5litre of water/attendeetotal = 7000 x 0.5 litre        = 3500 litrescomputing the water requirement per 200 litre containerwater requirement in the event = 3500 litres/200 litre /container                                                  = 17.5 containersThe water requirement in the event at the arena of 7000 attendees is 17.5 containers. 
3 0
3 years ago
Just before her party starts, Jane fills a cooler with 80 cups of ice. She also starts filling glasses with ice, 0.8 cups each.
Fofino [41]

The equation that shows how the total number of cups of ice used, y, depends on the number of glasses filled, x, is y = 0.8x + 80

<h3>Linear function</h3>

Filling the cooler is an illustration of a linear function

A linear function is represented as: y = mx + b

Where

  • m represents the slope/rate
  • b represents the y-intercept/the initial value
  • x and y are the variables

<h3>The equations</h3>

By comparison, we have the following parameters

  • m =0.8 --- the amount of cups per ice
  • b = 80 ---- the initial amount of cup

So, the equation that represents this scenario is

y = 0.8x + 80

Read more about linear functions at:

brainly.com/question/14323743

5 0
2 years ago
Translate each sentence into an inequality
aleksklad [387]
5. 5x-1 (greater than or equal to symbol) 11
7 0
2 years ago
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