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2 years ago

I need to solve this equation: x= r-h/ y for h and then for r

Mathematics

2 answers:

ololo11 [35]2 years ago

7 0

X= r-h/y
h= xy-r/-1
r= xy+h

Romashka [77]2 years ago

3 0

Answer:

$h=r-xy$

$r=xy+h$

Step-by-step explanation:

$x=\frac{r-h}{y}$

Solve the equation for h

We need to get 'h' alone

$x=\frac{r-h}{y}$

multiply y on both sides

$xy=r-h$

Now add h on both sides

$xy+h=r$

Subtract xy from both sides

$h=r-xy$

Now solve the equation for 'r'

$x=\frac{r-h}{y}$

multiply y on both sides

$xy=r-h$

Now add h on both sides

$xy+h=r$

$r=xy+h$

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The data set below represents the ages of 36 executives. find the percentile that corresponds to an age of 4141 years old. 2828

solong [7]

Answer:

37th percentile.

Step-by-step explanation:

We have been given a data set that represents the ages of 36 executives. We are asked to find the percentile that corresponds to an age of 41 years.

28, 29, 29, 32, 32, 33, 34, 34, 34, 34, 37, 37, 38, 41, 41, 42, 45, 45, 47, 47, 47, 48, 50, 51, 53, 56, 56, 56, 61, 61, 62, 63, 64, 64, 65, 66.

Let us count the number of data points below and at 41.

We can see that the number of data points at and below 41 is 13.

We will use percentile formula to solve our given problem.

$\text{Percentile rank of x}=\frac{\text{Number of values below x}}{\text{Total number of data points}}\times 100$

$\text{Percentile rank of 41}=\frac{13}{36}\times 100$

$\text{Percentile rank of 41}=0.361111\times 100$

$\text{Percentile rank of 41}=36.11\approx 37$

Therefore, the percentile rank that corresponds to age of 41 years old is 37th percentile.

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2 years ago

A chi-square test for goodness of fit is used to examine the distribution of individuals across three categories, and a chi-squa

aleksandrvk [35]

Answer:

Equal df

Step-by-step explanation:

Given that a chi square test for goodness of fit is used to examine the distribution of individuals across three categories,

Hence degree of freedom = 3-1 =2

Similarly for a chi-square test for independence is used to examine the distribution of individuals in a 2×3 matrix of categories.

Here degree of freedom = (r-1)(c-1) where r = no of rows and c =no of columns

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2 years ago

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2 years ago

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Natasha2012 [34]

Answer:

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Step-by-step explanation:

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