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Mariulka [41]
3 years ago
8

Helpppp khan academy

Mathematics
1 answer:
larisa [96]3 years ago
7 0

Answer:CA, BC, BA

Step-by-step explanation:

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a water pail in your backyard has a small hole in it you notice that it has a Drained a total of 3.5 L in 4 days what is the ave
WITCHER [35]

For this case we have the following data:

Drained 3.5 Liters in 4 days. If we want to know the volume of water per day, we make a rule of three:

3.5 Liters -----> 4days

x Liters --------> 1 day

Where x represents the amount of water drained each day.

So, we have to:

x =\frac{(1 * 3.5)}{4}

x = 0.875 Liters  per day

So, the average change in water volume each day is:x = 0.875 Liters  per day

Answer:

x = 0.875Liters per day


6 0
3 years ago
Someone please help quickly.......
Rainbow [258]

Answer:

c

Step-by-step explanation:

a.) 3(2)+4(6)= 6+24= 30

b.)3(6)+4(2)= 18+8= 26

c.)3(2)+4(-6)= 6+(-24)= -18

d.)3(-2)+4(6)= -6+24= 18

-18 is less than -1

Less than inequality sign means less than or equal to


6 0
3 years ago
Data with 950 observations are drawn from a bell-shaped distribution with a mean of 78 and a standard deviation of 19. Approxima
AysviL [449]

Answer:  there are 22 observations that are more than 116.

Step-by-step explanation:

Let x be the random variable.

Given: Sample size = 950

Mean = 78

Standard deviation = 19

The probability that the observations are more than 116 is given by :-

P(X>116)=P(\dfrac{X-mean}{standard \ deviation}>\dfrac{116-78}{19})\\\\=P(Z>2)\\\\=1-P(Z

Number of observations are more than 116 = 0.0228\times950

=21.66\approx22

Hence, there are 22 observations that are more than 116.

4 0
3 years ago
What does an individual's effective tax rate indicate?
Neporo4naja [7]
A) the average income earned

Mark if correct!
7 0
3 years ago
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A bag contains 3 red marbles, 7 blue marbles and 5 green marbles. If three marbles
Sedaia [141]

Answer:

3 out of 15

Step-by-step explanation:

5 0
3 years ago
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