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Elina [12.6K]
3 years ago
15

Which is a good comparison of the estimated sum and the actual sum of 7 7\8 + 2 11\12

Mathematics
2 answers:
navik [9.2K]3 years ago
6 0
Estimate: 8+3 or 11.
Actual Sum: 10 76/96 or 10 19/24
sasho [114]3 years ago
3 0
Seven and seven eighths rounds up to eight. Two and eleven twelfths rounds to three. Estimate equation: 8+3=11. Now you know your answer should be around 11. Then to find your actual answer you have to find the common denominator! If u need anymore help ask me! Hope I helped!
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Almost all employees working for financial companies in New York City receive large bonuses at the end of the year. A sample of
lora16 [44]

Answer:

The 90% confidence interval for the average bonus that all employees working for financial companies in New York City received last year is between $43,819 and $50,181

Step-by-step explanation:

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

T interval

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 62 - 1 = 61

90% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 61 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.9}{2} = 0.95. So we have T = 1.67

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 1.67\frac{15000}{\sqrt{62}} = 3181

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 47000 - 3181 = $43,819

The upper end of the interval is the sample mean added to M. So it is 47000 + 3181 = $50,181

The 90% confidence interval for the average bonus that all employees working for financial companies in New York City received last year is between $43,819 and $50,181

6 0
2 years ago
I will mark brainlist if right!!!
Orlov [11]

Step-by-step explanation:

b2 =5

.....................

8 0
3 years ago
PLEASE HELP IM STUCK PLS
QveST [7]

Answer:

<u>The slope is -3.</u>

Step-by-step explanation:

The slope is the Rise/Run between the two points.  The change in y for every change in x.  Take the two points and calculate the:

RISE = (-6 - 3) = -9

RUN = (8 - 5) = 3

Rise/Run, or slope, is = -9/3 or -3

I graphed a line with slope of -3 and then added 18 to force the line to intersect the two given points.

3 0
2 years ago
Yvette has 366 eggs to put into cartons. She puts one dozen eggs into each carton. How many cartons does she fill?
Anna [14]
You are going to divide 366 by 12 you get 30.5 so 30 filled cartons
are you sure it's not 336 eggs??
7 0
2 years ago
Describe the transformation f(x)=-2x-4;r(x)=(1/2x)
Evgesh-ka [11]
F(x) is a Virtical stretch that is reflected over the y axis moved 4 to the right

R(x) is a Horrizontal shrink


4 0
3 years ago
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