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3 years ago

For the function above, what is the missing value in the table below:

Mathematics

1 answer:

ollegr [7]3 years ago

7 0

Answer- 4
U need to plug in 1 for x and solve which would be 4

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While preparing for a party, Luis spent 25 minutes blowing up 10 balloons. Write an equation to express how many minutes it took

vodomira [7]

m= 2.5x is the equation you want to use, hope this helped! <3

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3 years ago

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How does the formula for the sample mean differ from the formula for population mean? Multiple choice question. To calculate the

Katen [24]

Answer:

The formulas are functionally the same, but 'n' (the sample size) is used instead of 'N' (the population size).

Step-by-step explanation:

The sample mean is the average value for a set of observations which is derived from a population. While the population mean is the average value for the entire set of observation belonging to a particular study of interest.

The set of observation belonging to a population is denoted by 'N' ; while the sample size is denoted as 'n' :

The mean formula is written thus :

Population mean = Σx / N

Sample mean = Σx / n

Where, x = set of values.

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3 years ago

Find the value or values of x in the quadratic equation x2=6x-9.

ozzi

x² = 6x - 9, or x² - 6x + 9 = 0, or x² - 2*x*3 + 3² = 0, or (x-3)² = 0 => x₁ = x₂ = 3.

Green eyes.

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3 years ago

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Please help with all part because I will brainliest plus 50 points!!

KonstantinChe [14]

Answer:

sorry I can only answer b.

3 sec = 36 feet

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3 years ago

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A Regional College uses the SAT to admit students to the school. The university notices that a lot of students apply even though

Aliun [14]

Answer:

0.191 is the probability that a group of 12 randomly selected applicants would have a mean SAT score that is greater than 525 but below the current admission standard of 584.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 500

Standard Deviation, σ = 100

n = 12

We are given that the distribution of SAT score is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

P(greater than 525 but 584)

Standard error due to sampling =

$\displaystyle\frac{\sigma}{\sqrt{n}} = \frac{100}{\sqrt{12}}$

$P(525 < x < 584) = P(\displaystyle\frac{525 - 500}{\frac{100}{\sqrt{12}}} < z < \displaystyle\frac{584-500}{\frac{100}{\sqrt{12}}}) = P(0.866 < z < 2.909)\\\\= P(z \leq 2.909) - P(z < 0.866)\\= 0.998 - 0.807 = 0.191 = 19.1\%$

$P(525 < x < 584) = 19.1\%$

0.191 is the probability that a group of 12 randomly selected applicants would have a mean SAT score that is greater than 525 but below the current admission standard of 584.

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3 years ago