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3 years ago

PLEASE HELPPP Will award brainliest!!!

Mathematics

1 answer:

Snowcat [4.5K]3 years ago

4 0

The "line of best fit" is the result of a linear regression computation. If you have done that, you already know its equation.

If you have "eye-balled" the line into place, then you have to figure out its equation from points you read on the graph. We take a couple of the points to be ... (2001, 1700) and (2010, 2450)

The line through these points will have the equation

... y = (2450 -1700)/(2010 -2001)(x -2001) +1700

... y = (250/3)(x -2001) +1700

Putting x=2013 into this equation, we get ...

... y = (250/3)(2013 -2001) +1700

... = (250/3)(12) +1700

... y = 2700

The population is predicted to be 2700 in 2013.

_____

Had you drawn your graph with a vertical grid line at 2013, you could have read the number from the graph.

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Who was regarded as the father of geomotry

zheka24 [161]

Answer:Euclid

Step-by-step explanation:

Euclid was an ancient Greek mathematician in Alexandria, Egypt. Due to his groundbreaking work in math, he is often referred to as the 'Father of Geometry'. Euclid's most well-known collection of works, called Elements, outlines some of the most fundamental principles of geometry.

4 0

1 year ago

Read 2 more answers

Aria paid $75,000 for her house. Its property value increased by 2.2% per year. When Aria sold her house after eleven years, how

astra-53 [7]

Answer:

When Aria sold her house after eleven years it worth was <u>$95,300</u>.

Step-by-step explanation:

Given:

Aria paid $75,000 for her house. Its property value increased by 2.2% per year.

Now, to find the worth of Aria house when sold after eleven years.

Let the amount of house after eleven years be $x.$

Amount Aria paid for her house (A) = $75,000.

Rate of property increased per year (r) = 2.2%.

Time (t) = 11 years.

Now, to get the amount of house after eleven years we put formula:

$x=A\times (1+\frac{r}{100})^{11}$

$x=75000\times (1+\frac{2.2}{100})^{11}$

$x=75000\times (1+0.022)^{11}$

$x=75000\times (1.022)^{11}$

$x=75000\times 1.2704$

$x=95280.$

<em>The amount of house after eleven years to the nearest hundred dollars is $95,300.</em>

Therefore, when Aria sold her house after eleven years it worth was $95,300.

3 0

3 years ago

Select the table that represents a proportional relationship between x and y.

Elina [12.6K]

Answer:

The answer would be B I think

Step-by-step explanation:

PLs mark me as brainllest

3 0

3 years ago

The two shapes have the same area. Work out the perimeter of the rectangle.

elena-14-01-66 [18.8K]

You need to do this in several steps.

1) Using the given length and width of the rectangle, find its area.
2) Then using the base and height of the triangle, find its area.
3) Since the areas are equal, set the expressions equal to each other, and solve for x.
4) Using the value of x you found, find the length and width of the rectangle and find its perimeter.

1) The area of the rectangle is A = LW
Area of Rectangle = (x + 2)x = x^2 + 2x

2) The area of the triangle is A = (1/2)bh
Area of Triangle = (1/2)(24)x = 12x

3) Set the areas equal and solve for x

x^2 + 2x = 12x

x^2 - 10x = 0

x(x - 10) = 0

x = 0 or x = 10

Since a width cannot be 0, we discard x = 0, and keep x = 10.

4) The length is x + 2 = 10 + 2 = 12
The width is x = 10

The perimeter is 2(L + W) = 2(10 + 2) = 2(22) = 44

The perimeter is 44 cm.

4 0

3 years ago

Please help this is due really soon and I need help!

melamori03 [73]

Answer:

Step-by-step explanation:

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3 0

3 years ago