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Zielflug [23.3K]

1 year ago

15

Regression analysis is better than the high-low method of cost estimation because regression analysis: Multiple Choice Fits data

into a mathematical equation. Takes less time. Is mathematical. Can provide greater precision and reliability. Is a statistical method.

1 answer:

UkoKoshka [18]1 year ago

5 0

Answer:

hola no sé qué decirte no se Inglés

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Which choice correctly shows the solution(s) of the equation x2 = 225?

prisoha [69]

Answer:

C)x = +/-15

Step-by-step explanation:

15x15=225

-15x-15=225

7 0

3 years ago

45 children attend preschool the number of two-year-olds is 1/2 the number of three-year-olds the number for your old is the sam

Mkey [24]

There are 9 two-year-olds and 18 each of 3 and 4 year olds.

To solve this we could write and solve the equation below, letting x be the number of 3 and 4 year olds.

x/2 + x + x = 45
x + 2x + 2x = 90
5x = 90
x = 18

From here, we just divide 18 by 2 to get the number of 2 year olds.

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3 years ago

I need help ASAP!!!!

Ad libitum [116K]

Step-by-step explanation:

Kindly find 4 attached files

The proportionality is determined by the lines that only passes through the origin

And all the lines drawn are passing through the origin

So by either one of the 2 ways

By using rule of direct variation y=kx that has no y intercept

Or by finding the equation of straight line and find the slope with neglecting the y intercept since it's 0

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2 years ago

First come first served brainiest *easy*

tigry1 [53]

Answer:

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Step-by-step explanation:

3 0

3 years ago

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Find f(-2) if f(x) = x + x + 7. f(-2) =

viktelen [127]

Answer:

f(-2) = 3

Step-by-step explanation:

Given that,

f(x) = x + x + 7

We need to find the value of f(-2).

Put x = -2 in the given function.

f(-2) = (-2) + (-2) + 7

= -2-2+7

= -4+7

= 3

Hence, the value of f(-2) is equal to 3.

3 0

2 years ago