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2 years ago

Please help Urgent

Mathematics

1 answer:

Elanso [62]2 years ago

4 0

The way to use the distance formula to classify quadrilateral include:

Use the distance formula to measure the lengths of the sides.
Use the slope to check whether the sides are perpendicular and form right angles.
Use the slope to check whether the diagonals are perpendicular to each

<h3>How to illustrate the information?</h3>

The steps to calculate the perimeter and area of a polygon:

Step 1: Plot the given points on the graph.

Step 2: Connect the points and identify the figure.

Step 3: Determine lengths by counting the grid lines.

Step 4: Use a formula to calculate the perimeter and area if one exists.

Step 5: If there are no formulas for a figure, the perimeter can be calculated by summing the lengths of the sides. We might estimate the area without an area formula by counting the number of small squares enclosed.

Learn more about coordinate geometry on:

brainly.com/question/18269861

#SPJ1

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3 years ago

WILL GIVE BRAINLY PLEASE HELP!!!!!!!

marta [7]

Answer:

r² = 0.5652 < 0.7 therefore, the correlation between the variables does not imply causation

Step-by-step explanation:

The data points are;

X, Y

0.7, 1.11

21.9, 3.69

18, 4

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13.8, 1.42

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The correlation between the values is given by the relation

Y = b·X + a

$b = \dfrac{N\sum XY - \left (\sum X \right )\left (\sum Y \right )}{N\sum X^{2} - \left (\sum X \right )^{2}}$

$a = \dfrac{\sum Y - b\sum X}{N}$

Where;

N = 10

∑XY = 499.354

∑X = 153.1

∑Y = 29.68

∑Y² = 100.546

∑X² = 2631.01

(∑ X)² = 23439.6

(∑ Y)² = 880.902

From which we have;

$b = \dfrac{10 \times 499.354 -153.1 \times 29.68}{10 \times 2631.01 - 23439.6} = 0.1566$

$a = \dfrac{29.68 - 0.1566 \times 153.1}{10} = 0.5704$

$r = \dfrac{N\sum XY - \left (\sum X \right )\left (\sum Y \right )}{\sqrt{\left [N\sum X^{2} - \left (\sum X \right )^{2} \right ]\times \left [N\sum Y^{2} - \left (\sum Y \right )^{2} \right ]}}$

$r = \dfrac{10 \times 499.354 -153.1 \times 29.68}{\sqrt{\left (10 \times 2631.01 - 23439.6 \right )\times \left (10 \times 100.546- 880.902\right )} } = 0.7518$

r² = 0.5652 which is less than 0.7 therefore, there is a weak relationship between the variables, and it does not imply causation.

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3 years ago

What is the area of the parallelogram?

Inessa [10]

Answer:

70 cm²

Step-by-step explanation:

The area of the parallelogram is:

14 × 5

= 70 cm²

Hope it helps!

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3 years ago

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lisabon 2012 [21]

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