Answer:
Step-by-step explanation:
2769 because there is 3600 seconds in an hour and when you divide it by 1.3 seconds you get 2769.23076923
The correlation coefficient for the data in the table is A. –0.993
<h3>Calculations and Parameters:</h3>
Using this formula: 
We would use x and y to represent the unknowns.
n = 4
We have,
- ∑x = 42,
- ∑y = 44.37 ,
- ∑xy = 461.3
- ∑x^2 = 446,
- ∑y^2 = 494
Putting these values in the formula would bring the answer as. A. –0.993
Read more about correlation coefficient here:
brainly.com/question/4160489
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Step-by-step explanation:
Split the figure into 2 parts, triangle and rectangle (I believe you know what I'm talking about)
area of triangle = 1/2 x 20 x (16-7) = 90cm^2
area of rectangle = 20 x 7 = 140cm^2
total area = 90 + 140 = 230cm^2
Topic: Mensuration
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Answer:
NICE
Step-by-step explanation:
