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2 years ago

15

Cost of admission to a town fair was $8 for adults and $5 for children. If 206 people

1 answer:

tatiyna2 years ago

7 0

I think 176 adult tickets were sold , sry if it’s wrong i’m kinda bad in math

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A fundamental basis of regression analysis is the assumption of a. the lack of a relationship between independent variables. b.

kodGreya [7K]

The correct answer is E. A fundamental basis of regression analysis is the assumption of the existence of two independent variables for every dependent variable.

Regression analysis is a statistical method that examines the dependence of a response variable on selected explanatory variables.

When studying the dependence between quantities and trying to describe a given functional dependence on a given formula, it is assumed that the dependence consists of a precisely determinable component and a random component. The relationship with this assumption is called the regression model.

Learn more about regression analysis in brainly.com/question/1305938

5 0

2 years ago

Determine if the numbers are parallel, perpendicular or netiher.

Margarita [4]

Answer:

Parallel :)

Step-by-step explanation:

thats the tea sis.

4 0

3 years ago

Now there is a square city of unknown size with a gate at the center of each side. There is a tree 20 b from the north gate. Tha

Brums [2.3K]

Answer:

The length of each side of the city is 250b

Step-by-step explanation:

Given

$a = 20$ --- tree distance from north gate

$b =14$ --- movement from south gate

$c = 1775$ --- movement in west direction from (b)

See attachment for illustration

Required

Find x

To do this, we have:

$\triangle ADE \sim \triangle ACB$ --- similar triangles

So, we have the following equivalent ratios

$AE:DE = AB:CB$

Where:

$AE = 20\\ DE = x/2 \\ AB = 20 + x + 14 \\ CB = 1775$

Substitute these in the above equation

$20:x/2 = 20 + x + 14: 1775$

$20:x/2 = x + 34: 1775$

Express as fraction

$\frac{20}{x/2} = \frac{x + 34}{1775}$

$\frac{40}{x} = \frac{x + 34}{1775}$

Cross multiply

$x *(x + 34) = 1775 * 40$

Open bracket

$x^2 + 34x = 71000$

Rewrite as:

$x^2 + 34x - 71000 = 0$

Expand

$x^2 + 284x -250x - 71000 = 0$

Factorize

$x(x + 284) -250(x + 284)= 0$

Factor out x + 284

$(x - 250)(x + 284)= 0$

Split

$x - 250 = 0 \ or\ x + 284= 0$

Solve for x

$x = 250 \ or\ x =- 284$

x can't be negative;

So:

$x = 250$

6 0

3 years ago

Which function pass through the points (1, 4), (2, 9), and (3, 16)?

swat32

ANSWER

$y= {(x+ 1)}^{2}$

EXPLANATION

The given points are:

(1, 4), (2, 9), and (3, 16)

It is obvious that the function is not linear because there is no constant difference among the y-values.

We can however manipulate the y-values to quickly identify the function.

$4 = {2}^{2} = {(1 + 1)}^{2}$

$9= {3}^{2} = {(2 + 1)}^{2}$

$16= {4}^{2} = {(3 + 1)}^{2}$

We can infer from the pattern that, the function is;

$y= {(x+ 1)}^{2}$

8 0

3 years ago

The distance between two parks on a city map is 1.8 inches. The actual distance between the parks is 2 miles. In the same city,

Pepsi [2]

HI there!

The correct answer is A. 0.7 inches

The ratio of the map is 0.9 in = 1 mi, so 0.9 / 0.8 = 0.72 rounds to 0.7

Your friend, ASIAX

7 0

3 years ago

Read 2 more answers