Answer:
Distance cd= root of (x1-y1)+(x2-y2).
Step-by-step explanation:
The regression equation which correctly models the data in this table is y = 1.49x - 107.5,
<h3>How to determine the regression equation?</h3>
From the table of data values, we have the following parameters:
∑x = 632
∑y = 404
∑x² = 80.142
∑xy = 51.448
Mathematically, the regression equation is represented by the following slope equation:
y = Bx + A
Next, we would determine A by using this expression:
A = (∑y·∑x² - ∑x·∑xy)/(n∑x² - (∑x)²)
A = (404×80,142 - 632×51,448)/(5×∑x² - (632)²)
A = (32,377,368 - 32,515136)/(5×80142 - 399,424)
A = -137,768/1286
A = 107.5
For B, we have:
B = (n∑xy· - ∑x·∑y)/(n∑x² - (∑x)²)
B = (5×51,448 - 632×404)/(5×∑x² - (632)²)
B = 1.49.
y = Bx + A
y = 1.49x - 107.5
Read more about regression equation here: brainly.com/question/28037520
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The scientific notation for this is :-6x10⁷
Answer:
96 tiles
Step-by-step explanation:
The kitchen floor is rectangular on shape.
The dimensions of the kitchen floor were 8 feet by 12 feet.
Hence, Area of a rectangle = Length × Width
Length = 8ft
Width = 12ft
Hence:
Area = 8ft × 12ft
= 96 ft²
If each tile was 1 square foot, the number of tiles he would need is
1 ft² = 1 tile
96 ft² = x
Cross Multiply
1ft² × x = 96 ft² × 1 tile
x = 96 ft² × 1 tile/1 ft²
x = 96 tiles
Therefore, Mark's father would need 96 tiles
