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2 years ago

WHAT IS THE ANSWER PLZ I WILL MARK BRAINLIEST!!!

Mathematics

1 answer:

yKpoI14uk [10]2 years ago

6 0

Answer:

There is something already at the positive 2 place and you are just subtracting 2 because of (-2)

I hope that helps :)

Step-by-step explanation:

plz mark B R A I N L I E S T

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The following are the ages (years) of 5 people in a room:

slava [35]

Answer:

The age of the person who entered the room is 15

Step-by-step explanation:

We are given:

Ages of 5 people in a room are:

17, 16, 15, 17, 22

A person enters room, and then the mean age of 6 people is 17.

We need to find the age of person who entered the room.

The formula to calculate mean is: $Mean=\frac{Sum\:of\:all\:data\:values}{Number\:of\:data\:Values}$

Now, in question we are given mean of 6 people that is 17

The age of 5 people are given while age of one person who enters the room is unknown.

Let age of person whose age is unknown= x

Now finding x using mean formula

$Mean=\frac{Sum\:of\:all\:data\:values}{Number\:of\:data\:Values}\\17=\frac{17+16+ 15+ 17+ 22+x}{6}\\17=\frac{87+x}{6}\\17*6=87+x\\102=87+x\\x=102-87\\x=15$

So, The value of x: x=15

Hence, the age of the person who entered the room is 15

4 0

2 years ago

The heights of women aged 20 to 29 follow approximately the N(64, 2.82) distribution. Men the same age have heights distributed

ivann1987 [24]

Answer:96.97

Step-by-step explanation:

Given

mean height of women $\mu _w=64$

Standard deviation of height $\sigma _w=2.82$

mean height of men $\mu _=69.3$

Standard deviation of height $\sigma _m=2.71$

P $\left ( X$

P $\left ( \frac{x-\mu _w}{\sigma _w}\right )$

P $\left ( Z$

i.e. 0.9697=96.97 %

4 0

2 years ago

Help fast plss i have 0 brain cells to do this

Maslowich

The answer is the third one

6 0

2 years ago

Read 2 more answers

State the most specific name for each figure

Marina86 [1]

Answer:

7. quadrilateral, 8. square, 9. rectangle, 10. rhombus or parallelogram 11. square, 12. square, 13. rhombus or parallelogram, 14. parallelogram or rhombus

8 0

2 years ago

3w-2+4=6<br>solving equations with like terms.

tatyana61 [14]

Then answer should be w = 4/3 if that’s what you lookin for

6 0

2 years ago