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3 years ago

Unit 8 Correlation and Regression

Mathematics

1 answer:

julsineya [31]3 years ago

7 0

Wait can someone answer this I need help too

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: Find the approximate perimeter of the isosceles triangle A OPD.

AleksAgata [21]

Answer:

24.98 units

Step-by-step explanation:

The picture of the question in the attached figure

we have the coordinates

P(1,-6),D(4,3),O(7,-6)

The perimeter of triangle OPD is equal to

$P=OP+PD+OD$

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

step 1

Find the distance OP

we have

O(7,-6),P(1,-6)

substitute in the formula

$d=\sqrt{(-6+6)^{2}+(1-7)^{2}}$

$d=\sqrt{(0)^{2}+(-6)^{2}}$

$d_O_P=6\ units$

step 2

Find the distance PD

we have

P(1,-6),D(4,3)

substitute in the formula

$d=\sqrt{(3+6)^{2}+(4-1)^{2}}$

$d=\sqrt{(9)^{2}+(3)^{2}}$

$d_P_D=\sqrt{90}\ units$

step 3

Find the distance OD

we have

O(7,-6),D(4,3)

substitute in the formula

$d=\sqrt{(3+6)^{2}+(4-7)^{2}}$

$d=\sqrt{(9)^{2}+(-3)^{2}}$

$d_O_D=\sqrt{90}\ units$

step 4

Find the perimeter

$P=6+\sqrt{90}+\sqrt{90}$

$P=6+9.49+9.49=24.98\ units$

4 0

3 years ago

24 POINTS!!!!!!!!!!!!!

Anastasy [175]

A great earthquake would be 100 times stronger than a large one.

5 0

3 years ago

Please help ALEKS!!!! MIDDLE SCHOOL LEVEL

valina [46]

Answer:

it should be about 60 degrees

4 0

3 years ago

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Cars lose value the farther they are driven. A random sample of 11 cars for sale was taken. All 11 cars were the same make and m

ICE Princess25 [194]

Answer:

$y=-\frac{1}{4}x+40$

Step-by-step explanation:

Given

See attachment for graph

Required

Determine the equation of the line of best fit

First, calculate the slope (m)

$m = \frac{y_2 - y_1}{x_2 - x_1}$

From the graph, we can have:

$(x_1,y_1) = (20,35)$

$(x_2,y_2) = (60,25)$

So, the slope is:

$m = \frac{25 -35}{60 - 20}$

$m = \frac{-10}{40}$

$m = -\frac{1}{4}$

The equation is then calculated as:

$y = m(x - x_1) + y_1$

$y = -\frac{1}{4}(x - 20) + 35$

$y = -\frac{1}{4}x + 5 + 35$

$y=-\frac{1}{4}x+40$

<em>Hence, the equation is:</em> $y=-\frac{1}{4}x+40$

6 0

3 years ago

Number 9. I'm not sure how to make the equation.

Lyrx [107]

300 + 110 equals the variable x.

6 0

3 years ago

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