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cestrela7 [59]
3 years ago
8

Darryl has $5 left in his pocket. He spent $16 on a book, $20 on a compact disc, and $2 on a magazine. How much money did he hav

e at the beginning of the day.
Mathematics
2 answers:
Minchanka [31]3 years ago
8 0
The correct answer is $32
Lera25 [3.4K]3 years ago
5 0
$43 Dollars
20 + 16 + 5 + 2 = 43

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If an input is -9 what is the output for y = x(to the 2nd power) + 3?
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Step-by-step explanation:

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Solve the system of equations:
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Answer:

D.(-1,-5) and (5,7)

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Firlakuza [10]

The solutions to the questions are given below

a)

sample(n) word length sample mean

1                    5,4,4,2    3.75

2                    3,2,3,6     3.5

3                         5,6,3,3    4.25


b)R =0.75

c)

  • The mean of the sample means will tend to be a better estimate than a single sample mean.
  • The closer the range of the sample means is to 0, the more confident they can be in their estimate.

<h3>What is the students are going to use the sample means to estimate the mean word length in the book.?</h3>

The table below shows sample means in the table.

sample(n) word length sample mean

1                    5,4,4,2    3.75

2                    3,2,3,6     3.5

3                         5,6,3,3    4.25

b)

Generally, the equation for is  mathematically given as

variation in the sample means

R =maximum -minimum

R=4.25-3.5

R =0.75

c)

In conclusion, In most cases, the mean of many samples will provide a more accurate estimate than the mean of a single sample.

They may have a higher level of confidence in their estimate if the range of the sample means is closer to 0 than it is now.

Read more about probability

brainly.com/question/795909

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7 0
2 years ago
Use the Pythagorean theorem to find the distance between the points (1,1) and (5,7).?
Fynjy0 [20]

Check the picture below.

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