All categories

3 years ago

If the mean of 12,16,22,X 28 is 19.6 find X

Mathematics

1 answer:

vodomira [7]3 years ago

6 0

Answer:

Step-by-step explanation:

A data is given and the mean of data is 19.6 .The data is ,

12 , 16 , 22 , x , 28 .

We know that the mean is sum of observations divided by Total number of observations . So that ,

⇒ 12 + 16 + 22 + x + 28/ 5 = 19.6

⇒ 78+x/5 = 19.6

⇒ 19.6 × 5 = 78 + x

⇒ 78 + x = 98

⇒ x = 98 - 78

⇒ x = 20

<h3>Hence the value of x is 20 .</h3>

You might be interested in

A storage container leaks water at a rate of 15 gallons every 30 days. What is the unit rate in gallons per week?

ExtremeBDS [4]

Answer:

7/2

Step-by-step explanation:

First get daily:

15/30 = 1/2

Then weekly:

1/2 x 7 = 7/2

5 0

2 years ago

PLEASE HELP! I need answers ASAP!

Dafna11 [192]

Answer:

6.32

Step-by-step explanation:

Also known as 2√10

After we solve that we get 6.32455532

we then focus on these numbers here

6.32455532

It doesnt round up stays the same so we get 6.32 to nearest hundredth

8 0

3 years ago

Calculate the area under the graph of f(x) = 1/xlnx from x = e to x = e^e

Gnom [1K]

Using integration, it is found that the area under the graph of f(x) in the desired interval is of 1 unit squared.

<h3>How is the area under a graph found?</h3>

The area under the graph of a curve f(x) between x = a and x = b is given by the following integral:

$A = \int_{a}^{b} f(x) dx$

In this problem, the function and the limits of integration are given by:

$f(x) = \frac{1}{x\ln{x}}$

$a = e, b = e^e$

Hence:

$A = \int_{e}^{e^e} \frac{1}{x\ln{x}} dx$

Using substitution:

$u = \ln{x}$

$du = \frac{1}{x} dx$

$dx = x du$

Hence:

$\int \frac{1}{x\ln{x}} dx = \int \frac{1}{u} du = \ln{u} = \ln{\ln{x}}$

Applying the Fundamental Theorem of Calculus:

$A = \ln{\ln{e^e}} - \ln{\ln{e}} = \ln{e\ln{e}} = \ln{\ln{e}} = \ln{e} - \ln{1} = 1$

Hence, the area under the graph of f(x) in the desired interval is of 1 unit squared.

To learn more about integration, you can take a look at brainly.com/question/20733870

7 0

3 years ago

Which graph correctly shows the solution of the compound inequality 4x<16 or 11x>121?

Margaret [11]

Answer:

Graph 2

Step-by-step explanation:

We are given the following compound inequalities and we are to find its solution and then determine whether which of the graphs correctly shows it"

$4 x < 1 6$ or $1 1 x > 1 2 1$

$x < \frac { 1 6 } { 4 } , x > \frac { 1 2 1 } { 1 1 }$

$x > 4, x > 1 1$

Therefore, graph 2 shows it correctly.

8 0

3 years ago

Read 2 more answers

163.64 nearest cent?????????????????????????

Afina-wow [57]

163.65 since it would meet in the middle

3 0

3 years ago

Read 2 more answers