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4 years ago

8

In math, what is the mean?

2 answers:

MA_775_DIABLO [31]4 years ago

8 0

Average of all numbers hope this helps

evablogger [386]4 years ago

7 0

<span>In math the mean is the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are. In other words it is the sum divided by the count.

Hope this helps mate =)</span>

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HELPPp!!!!!!<br><br> What is the surface area of the figure below?

kogti [31]

Answer:

84

Step-by-step explanation:

6 0

3 years ago

Helppp i need help on question 1) b and d<br>2) d and e

salantis [7]

<h2><u>Question</u><u>:</u><u>-</u></h2>

1. b) Factorise ➾ y² - 20y + 100

1. d) Factorise ➾ 48 - 13p - p²

2. d) Factorise ➾ 18y² - y - 4

2. e) Factorise ➾ 4m² - 27m + 18

<h2><u>Solutions</u><u>:</u><u>-</u></h2>

<h2><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u></h2>

1. b) y² - 20y + 100

⇝ y² - 10y - 10y + 100 ( Splitting middle term )

⇝ y ( y - 10 ) - 10 ( y - 10 )

⇝ ( y - 10 )(y - 10 ) <u>Ans</u><u>.</u>

<h2><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u></h2>

1. d) -p² - 13p + 48

⇝ -p² - 16p + 3p + 48 ( Splitting middle term )

⇝ -p ( p + 16 ) + 3 ( p + 16 )

⇝ ( p + 16 )(3 - p ) <u>Ans</u><u>.</u>

<h2><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u></h2>

2.d) 18y² - y - 4

⇝ 18y² - 9y + 8y - 4 ( Splitting middle term )

⇝ 9y ( 2y - 1 ) + 4 ( 2y - 1 )

⇝ ( 2y - 1 )( 9y + 4 ) <u>Ans</u><u>.</u>

<h2><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u></h2>

2.e) 4m² - 27m + 18

⇝ 4m² - 24m - 3m + 18 ( Splitting middle term)

⇝ 4m ( m - 6 ) - 3 ( m - 6 )

⇝ ( m - 6 )( 4m - 3 ) <u>Ans</u><u>.</u>

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<h2><em><u>HOPE</u></em><em><u> </u></em><em><u> </u></em><em><u>IT</u></em><em><u> </u></em><em><u> </u></em><em><u>CAN</u></em><em><u> </u></em><em><u> </u></em><em><u>HELP</u></em><em><u> </u></em><em><u> </u></em><em><u>U</u></em><em><u> </u></em><em><u> </u></em><em><u>:</u></em><em><u> </u></em><em><u>)</u></em><em><u> </u></em></h2>

8 0

3 years ago

Key Club hosted a fundraising event where the profit they made depends on the number of people. If 100 people attend they make $

SSSSS [86.1K]

Answer:

The linear equation that represent this problem is $y=50x-2,500$

Step-by-step explanation:

Let

x -----> the number of people

y ----> the profit in dollars

we have

For x=100, y=2,500

and

For x=80, y=1,500

<em>Find the slope m</em>

we have

(80,1,500) and (100,2,500)

The slope is equal to

$m=(2,500-1,500)/(100-80)\\ \\m=50\frac{\$}{people}$

Find the equation of the line into point slope form

$y-y1=m(x-x1)$

we have

$m=50$ and point (100,2,500)

substitute

$y-2,500=50(x-100)$ ----> equation in slope point form

Convert to slope intercept form

$y=50x-5,000+2,500$

$y=50x-2,500$

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4 years ago

Jacob signs up to work for 2 1/2 hours at school carnival. if each work shift is 3/4 hours how many shifts will Jacob work

Allushta [10]

I believe he will work about 3 shifts. The answer I got was 3 1/4 shifts to get exactly 2.5 hours.

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3 years ago

I need help can you please explain where does the 8 come from

BaLLatris [955]

Since you want to cancel something out, the book makes the 24 3 times eight so that both of the threes can be canceled out

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3 years ago