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Juliette [100K]
3 years ago
5

Joe is the owner-operator of Joe's Haircuts Unlimited. Last year he earned $200,000 in total revenues and paid $125,000 to his e

mployees and suppliers. During the course of the year, he received three offers to work for other barbers, with the highest offer being $50,000 per year.
Mathematics
1 answer:
Diano4ka-milaya [45]3 years ago
7 0

the answer is 1.25E15

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Please help, I’m unsure how to do standard deviation so I’m very confused!
lidiya [134]

a. With an average/mean of 7 dreams, one standard deviation away from the mean corresponds to the interval [7 - 1.7, 7 + 1.7] = [5.3, 8.7]. So children within one standard deviation of the mean experience somewhere between 5 and 9 dreams. Two standard deviations from the mean refers to the interval [7 - 2 * 1.7, 7 + 2 * 1.7] = [3.6, 10.4]. So children in this range have between 3.6 and 10.4 dreams.

b. We already know that the interval [5.3, 8.7] is one standard deviation from the mean. If we assume the number of dreams is normally distributed with mean 7 and standard deviation 1.7, then we can apply the empirical rule (a.k.a. 68-95-99.7), which says that for any normal distribution, roughly 68% of the distribution falls within one standard deviation of the mean. So we can expect roughly 68% of the 4800 children to have between 5.3 and 8.7 dreams, or about 3264 students.

6 0
3 years ago
Which of the following correctly describes a concave polygon?
enyata [817]
The answer to this one is A
7 0
3 years ago
the radius of a circle is 5 meter what is the area,in square meter,of circle? Round to the nearest tenth
Slav-nsk [51]

Answer:

78.54 rounded to the tenths it is 78.5

Step-by-step explanation:

I did the math. And I did my work like this

5*5=25

25*pi=78.5398163

Rounded to hundredths 78.54

Rounded to tenths 78.5 Hope this helps, let me know if correct, and have a great day!!

6 0
2 years ago
Read 2 more answers
A number of squares are connected in a row to form a rectangle. The table shows the relationship between the number of squares,
svp [43]

Answer:

✅The table can be represented by the equation, y = 4x + 4

✅The relation is a function.

✅The graph of the function is linear.

Step-by-step explanation:

✍️The first statement: The table can be represented by the equation, y = 4x + 4.

To check if the first statement is correct let's find the equation that can represent the table by finding the slope (m) and y-intercept (b).

Using two pairs, (1, 8) and (2, 12),

Slope = \frac{y_2 - y_1}{x_2 - x_1} = \frac{12 - 8}{2 - 1} = \frac{4}{1} = 4.

Substitute, x = 1, y = 8, and m = 4 into y = mx + b to solve for b.

Thus:

8 = (4)(1) + b

8 = 4 + b

Subtract 4 from each side

8 - 4 = b

4 = b

Plug in the values of b and m into y = mx + b.

Thus, the equation that represents the table would be:

y = 4x + 4.

✅Therefore, the first statement is correct.

✍️The second statement: The graph of the function is non-linear.

This is NOT TRUE because the equation of the function, y = 4x + 4, represents the equation of a linear graph in the slope-intercept form. When graphed, it will give us a straight line.

✍️The Third statement: The relation is a function.

This is TRUE because each input value (x-value) has exactly one output value (y-value).

✍️The Fourth statement: The rate of change is NOT constant.

This standby is NOT TRUE.

The rate of change is the slope (m) that we have calculated above to be 4. Between any two pairs, the rate of change remains 4.

Therefore, this statement is not correct.

✍️The Fifth statement: The graph of the function is linear.

This is TRUE. As stated earlier, from the equation generated, it is safe to say that the equation represents graph of a linear function. The graph will be a straight line graph.

5 0
3 years ago
Change the decimal 0.0112 to a fraction
Butoxors [25]
The answer is A. 112/10000
8 0
2 years ago
Read 2 more answers
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