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snow_lady [41]
3 years ago
14

B(t)=100•2^t/10 how many minutes will it take for the culture to achieve 10,000 bacteria? Round answer to nearest hundredth

Mathematics
1 answer:
hammer [34]3 years ago
6 0

Answer:

66.44

Step-by-step explanation:

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How many 2-letter combinations can be made from the letters A, B, C, and D?
yulyashka [42]

Answer:

12

Step-by-step explanation:

each letter can be used with each other 3 times and there are 4 letters so 12

5 0
3 years ago
Read 2 more answers
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
1 year ago
A car moving at an initial velocity of 20 meters/second accelerates at the rate of 1.5 meters/second2 for 4 seconds. The car’s f
sineoko [7]
The initial velocity: v o = 20 m/s.And :  a = 1.5 m / s² , t = 5 s.The final velocity formula:v = v o + a · tv = 20 + 1.5 · 5v = 20 + 7.5v = 27.5 m /sAnswer: The car`s final velocity is 27.5 meters / second.

4 0
3 years ago
Read 2 more answers
During a visit to a primary care physician's office, the probability of having neither lab work nor referral to a specialist is
Verdich [7]

Answer:

Mommy

Step-by-step explanation:

mommy mommy mommy mommy mommy

6 0
2 years ago
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What is the equation of the line when m = 5 and b = -4?
Alja [10]

Answer:

Y = 5x -4

Step-by-step explanation:

You literally just plug the numbers into the equation below:

y = mx + b.

5 0
3 years ago
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