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Mariana [72]
3 years ago
13

Evaluate: 54 - 75 + 81 - (-27) + 53

Mathematics
2 answers:
olga55 [171]3 years ago
7 0

Answer:

140.

Step-by-step explanation:

PEMDAS.

Since there isn't any problems that aren't adding, we can just do it step by step.

54 - 75.

-21.

Add 81.

60.

Subtract -27.

87.

Add 53.

140.

Brainiest?

Kamila [148]3 years ago
4 0

Answer:

140

Step-by-step explanation:

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A set of data with 100 observati removed, what is the mean of the new data se of 267 There are six outliers in the data set, whi
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Answer:

<u>the mean-average of the data without the outliers is 22572/94 = 240.12766 correct to four digits.</u>

Step-by-step explanation:

If the six outliers are removed, what is the mean average of the remaining data... is ASSUMED what the question was supposed to ask. I'll go out on a limb here, because there really isn't much else you can calculate with just

this much data anyways. I refer to the mean or average as the mean-average....just sayin'

 

Mean-Average = total/count , which means the total = count * mean-average.

 

Well, the data containing the outliers has a mean-average of 267 and a count of 100 statistics as given in the problem. So the total of all of the data including the outliers is 26700.

 

Likewise, the six outliers have a mean-average of 688 as given in the problem.

So the total of the outliers is 688 * 6 = 4128.

 

As a result, the total of the 94 statistics when the six outliers are rejected is 26700-4128=22572.

 


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3 years ago
Write the congruence
Andreas93 [3]
Hi I wanna was a good morning
7 0
3 years ago
Calculus help ASAP!!!
anastassius [24]
Let c\in(0,\infty). Then the definite integral can be split up at t=c so that

\displaystyle F(x)=\int_{t=2x}^{t=5x}\frac{\mathrm dt}t
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\displaystyle=-\int_{t=c}^{t=2x}\frac{\mathrm dt}t+\int_{t=c}^{t=5x}\frac{\mathrm dt}t

Now take the derivative. By the fundamental theorem of calculus, you have

\displaystyle\frac{\mathrm dF}{\mathrm dx}=\frac{\mathrm d}{\mathrm dx}\left[\int_{t=c}^{t=5x}\frac{\mathrm dt}t-\int_{t=c}^{t=2x}\frac{\mathrm dt}t\right]
=\displaystyle\frac1{5x}\dfrac{\mathrm d}{\mathrm dx}[5x]-\frac1{2x}\dfrac{\mathrm d}{\mathrm dx}[2x]
=\dfrac5{5x}-\dfrac2{2x}
=\dfrac1x-\dfrac1x
=0

Then integrating with respect to x, we recover F(x) and find that

\displaystyle\int\dfrac{\mathrm dF}{\mathrm dx}\,\mathrm dx=\int0\,\mathrm dx
F(x)=C

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3 years ago
Please answer asapWhat is the measure of an exterior angle of a regular 13-sided polygon? Enter your answer as a decimal in the
sukhopar [10]

Answer:

Step-by-step explanation:

it is given by the formula=4× 90/ n

where n = number of sides

exterior angle= 4 x 90/13

=360/13=27.7°

                                               

                                     

8 0
3 years ago
Which expression represents the change from a $20 bill when you purchase an item that costs d dollars
Anettt [7]
Expression that represents the change from $20 after the purchase of an item that costs d dollars is:
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