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4 years ago

What is the formula of mean ???? pls explain

Mathematics

2 answers:

Softa [21]4 years ago

8 0

In simple words,

$mean \: = \: \frac{sum \: of \: the \: observations}{no. \: of \: observations}$

VashaNatasha [74]4 years ago

6 0

Answer:

Mean is fairly simple. You add up all the numbers, then divide it by how many numbers you have.

Step-by-step explanation:

Take for example, you have 1, 2, 3, 4, 5

Add all those numbers up.

1+2+3+4+5

You get 15.

To get the mean, you simply divide 15 by 5.

Why?

Because there are 5 numbers present.

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Suppose that the Band Booster Club sells 25 blanket wraps during a chilly football game. Use the graph to determine how many T-s

igor_vitrenko [27]

Answer:

Can I see the graph?

Step-by-step explanation:

You need the info of the graph to get the answer.

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3 years ago

What is an equation of the line that passes through the point ( 6 , − 2 ) (6,−2) and is perpendicular to the line 6 x + y = 2 6x

Diano4ka-milaya [45]

Answer:

An equation of the line that passes through the point (6, − 2) and is perpendicular to the line will be:

$y=\frac{1}{6}x-3$

Step-by-step explanation:

We know that the slope-intercept form of the line equation is

y=mx+b

where m is the slope and b is the y-intercept.

Given the line

6x+y=2

Simplifying the equation to write into the slope-intercept form

y = -6x+2

So, the slope = -6

As we know that the slope of the perpendicular line is basically the negative reciprocal of the slope of the line.

Thus, the slope of the perpendicular line will be: -1/-6 = 1/6

Therefore, an equation of the line that passes through the point (6, − 2) and is perpendicular to the line will be

$y-y_1=m\left(x-x_1\right)$

substituting the values m = 1/6 and the point (6, -2)

$y-\left(-2\right)=\frac{1}{6}\left(x-6\right)$

$y+2=\frac{1}{6}\left(x-6\right)$

subtract 2 from both sides

$y+2-2=\frac{1}{6}\left(x-6\right)-2$

$y=\frac{1}{6}x-3$

Therefore, an equation of the line that passes through the point (6, − 2) and is perpendicular to the line will be:

$y=\frac{1}{6}x-3$

5 0

3 years ago

If it takes 1,800 foot- pounds of work to push a rock fifteen feet, what amount of force was used?

ella [17]

Answer:

120 lbs

Step-by-step explanation:

Work = force * distance

1800 ft-lb = force * 15 ft

force = 1800 ft-lb / 15 ft

=1800/15 ft-lb/ft

=120lbs

6 0

4 years ago

Tickets to a school basketball game cost $4 for students and $7 for adults. At the end of the night, 168 tickets are sold for a

stepan [7]

4s+7a=861
s+a=168

This can be solved using either elimination or substitution. I am going to use substitution.

Solve s+a=168 for s
s=168-a

Replace 168-a for s in 4s+7a=861
4(168-a)+7a=861
672-4a+7a=861

Solve for a
672+3a=861
3a=189
a=63

Substitute 63 for a in s=168-a
s=168-63=105

So, s=105 student tickets and a=63 adult tickets

3 0

3 years ago

1. An object is blasted upward at an initial velocity of 320 ft/s. The height, h(t), of the object is a function of time, t (in

Maksim231197 [3]

Answer:

20 seconds

Step-by-step explanation:

roots are (0,0) and (20,0) so 20-0 will provide the time from takeoff to landing

8 0

3 years ago

What is the formula of mean ???? pls explain​

What is the formula of mean ???? pls explain