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zhannawk [14.2K]
3 years ago
12

You have violin lessons every fourth day and singing lessons every

Mathematics
1 answer:
lana [24]3 years ago
3 0

I think it is in three(3) day

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2x4 + 4x3 – 30x2 = 0
liraira [26]
That equation is false.
8 + 12 - 60 = -40 , not 0
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Could someone answer these problems ?
Lelu [443]

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She received $18.11

Step-by-step explanation:

25.63-7.52= $18.11

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Solve and DONT simplify 9/18 + 1/3
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0.833

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A sport statistician gathered data on the number of points scored in each game by high school basketball players across the coun
Sonbull [250]

For a sample size of 20 players, 68% of the sample means fall within 19.32 and 20.98

<h3>What is a sample size?</h3>

The sample size is a term used in market research for defining the number of subjects included in a sample size. By sample size, we understand a group of subjects that are selected from the general population and is considered a representative of the real population for that specific study.

Empirical rule states that for a normal distribution, 68% of the values are within one standard deviation from the mean, 95% of the values are within two standard deviation from the mean and 99.7% of the values are within three standard deviation from the mean.

For a population mean of 20.15 and a standard deviation of 3.7

68% are within μ ± σ/√n,

hence,

68% = 20.15 ± 3.7/√20 = (19.32, 20.98)

For a sample size of 20 players, 68% of the sample means fall within 19.32 and 20.98.

To learn more about  sample size from the given link:

brainly.com/question/22927560

#SPJ4

6 0
2 years ago
a student worked out at the gym continuously for 50 minutes. The graph shows the remaining percentage of the workout f(x) as a l
SashulF [63]

Answer:

Domain: All real numbers greater than or equal to 0 and less than or equal to 50

Range: All real numbers greater than or equal to 0 and less than or equal to 100

Step-by-step explanation

The workout is at 100% at 50 mins. Anything less would be under these two numbers.  Since the percentage of workout is on the y-axis, anything between zero and 100 can be possible. The time is on the x-axis, so anything 0 to 50 can be possible.  

8 0
3 years ago
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