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3 years ago

Get the standard deviation of this data set:

Mathematics

1 answer:

natta225 [31]3 years ago

5 0

Answer:

Step-by-step explanation:

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There were thirteen friends playing a video game online when six players quit.If each player left had eight lives how many lives

Lorico [155]

They had 56 lives in total

Explanation: if there were thirteen friends to begin with and six quit that would leave them with 7 friends. If those seven remaining friends each had 8 lives, you multiply those 7 friends by 8 lives which would get 56.

If all thirteen friends were still in the game then they would have 104 lives all together.

5 0

2 years ago

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Which inequality represents the graph y>-4 over 5x plus 3

Ipatiy [6.2K]

Answer:

Step-by-step explanation:

So you would use rise over run so its 4/5 but its negative so you go 4 down and 5 right. So 4 down 5 right is equal to -4/5 which is your slope.

3 0

3 years ago

Please help what is for 1/2 x 1 2/3

matrenka [14]

5/6 is the answer boiiiiiiiiiiiiiiiii

7 0

4 years ago

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Find the average rate of change for f(x) = x2 − 3x − 10 from x = 4 to x = 6. A) 5 Reactivate B) 7 C) 9 Reactivate D) 11

White raven [17]

Answer:Rate of change is 7

Option B is correct.

Step-by-step explanation:

We need to find the average rate of change for $f(x)=x^2-3x-10$ from x = 4 to x = 6

The formula used to find average rate of change is:

$Rate\,\,of\,\,change=\frac{f(b)-f(a)}{b-a}$

Where b = 6 and x = 4

Finding f(6):

$f(x)=x^2-3x-10\\f(6)=(6)^2-3(6)-10\\f(6)=36-18-10\\f(6)=36-28\\f(6)=8$

Finding f(4):

$f(x)=x^2-3x-10\\f(4)=(4)^2-3(4)-10\\f(4)=16-12-10\\f(4)=16-22\\f(4)=-6$

Now Putting values:

$Rate\,\,of\,\,change=\frac{f(b)-f(a)}{b-a}$

$Rate\,\,of\,\,change=\frac{8-(-6)}{6-4}\\Rate\,\,of\,\,change=\frac{8+6}{2}\\Rate\,\,of\,\,change=\frac{14}{2}\\Rate\,\,of\,\,change=7$

So, Rate of change is 7

Option B is correct.

Keywords: Rate of Change

Learn more about Rate of Change at:

#learnwithBrainly

8 0

3 years ago

What is the first step when rewriting y=6x^2+18x+14 in the form y=a(x-h)^2+k?

Grace [21]

<h3>Answer:</h3>

Factor 6 from the first two terms.

<h3>Step-by-step explanation:</h3>

By factoring out "a", you can better see what "h" needs to be.

y = 6(x^2 +3x) +14 . . . . 6 factored from first 2 terms
add the square of half the x-coefficient inside parentheses; add the opposite outside: y = 6(x^2 +3x +2.25) +14 -6(2.25)
rewrite as a square; combine the constants: y = 6(x+1.5)^2 +0.5

7 0

3 years ago