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Elenna [48]
3 years ago
6

*20 points* how do you get the weighted average from this table?

Mathematics
2 answers:
sertanlavr [38]3 years ago
7 0

Answer:

Weighted average is the average of a set of numbers, each with different associated “weights” or values. To find a weighted average, multiply each number by its weight, then add the results.

Step-by-step explanation:

cricket20 [7]3 years ago
5 0

Answer:

it is

[(2+3+4+6)-2*4]:4=1.75

I THINK

Step-by-step explanation:

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The height of a volleyball, h, in feet, is given by h = −16t^2 + 11t + 5.5, where t is the number of seconds after it has been h
faust18 [17]

Answer:

The volleyball travel high enough to clear the top of the net.

Step-by-step explanation:

The height of a volleyball, h, in feet, is given by h = −16t² + 11t + 5.5, where t is the number of seconds after it has been hit by a player.

Now, for h = 7.3 feet, we can write

7.3 = - 16t² + 11t + 5.5

⇒ 16t² - 11y + 1.8 = 0

Using the quadratic formula we get,

t = \frac{- (- 11) \pm \sqrt{(-11)^{2} - 4(16)(1.8)}}{2(16)}

⇒ t = \frac{11 \pm 2.4}{32}

⇒ t = 0.27 or t = 0.42

Therefore, for the two real positive values of t the volleyball travel high enough to clear the top of the net. (Answer)

5 0
3 years ago
Here is a pattern made from sticks:
Nataly [62]

Answer:

brainless plz

Step-by-step explanation:

a:5

b:3 stick

4 0
2 years ago
PLSSS HELP DUE SOONNNN ILL GIVE BRAINLIEST IF ALL QUESTIONS R ANSWERED
Alexeev081 [22]

Answer:

9. y=9h+4

10. y=5r+10

11. y=4x+8

12. y=4n+9

Step-by-step explanation:

9. He gets 9 dollars per hour (h), and 4 dollars extra for gas.

So 9 dollars per hour plus 4 dollars for the gas

y=9h+4

10. Roses (r) are selling for 5 dollars each and there is a delivery fee of 10 dollars.

So 5 dollars per rose plus 10 dollar fee

y=5r+10

11. The tree increases by 4 feet per year (x), and it is already 8 feet tall.

So 4 feet per year plus 8 feet

y=4x+8

12. Each trophy (n) weighs 4 kilograms, and the box itself weighs 9 kilograms.

So 4 kilograms per trophy plus 9 kilograms for the box.

y=4n+9

3 0
2 years ago
If rain is falling at 0.5 inches per hour and 1.5 inches have already accumulated, how many hours must have passed if there are
Rasek [7]

Answer:

1.5 + 0.5h = 5 and  0.5h + 1.5 + 5

Step-by-step

I think this would be the answer, sorry if it's not

6 0
3 years ago
What is the Slope of a line That contains (2,5) and (3, 1) Sketch the graph. Need help with this question.​
Svetach [21]

Answer:

-4/1

Step-by-step explanation:

To find the slope, first plot the two points we are given on the provided coordinate plain. Then using rise/run (slope) find the distance between the two points going up and over or rising and running. So we go up 4 and over 1, this means the slope is 4/1. Since the line we just graphed is going top left towards bottom right, it is negative.

Pic included...

I hope this helps u!! :)

5 0
3 years ago
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