kimlyn58p0wyn0
22.08.2020 •
Mathematics
Water is being pumped in a swimming pool at a constant rate. As water fills in the pool,
the height of the water rises linearly. The following observations are shared:
• At 5:30 am, the depth of water is measured to be 1.4 feet.
• At 7:00 am, the depth of water is recorded to be 2.9 feet
If this linear pattern continues, what will the depth of the water be at 10:00 am?
2 A rectangle has a perimeter of 24 units. The length of the rectangle is
times 3 less than the width. What is the width of the rectangle?
A 3 units
B 4 units
C. 5 units
D. 6 units
Solved
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Ответ:
The correct option is 2.
Step-by-step explanation:
The given data is
x y
5 36
9 64
12 72
18 96
26 141
35 189
The general form of regression line is
From the given picture of graphing calculator, it is clear that the equation of regression line is
Approx the value of a and b upto tenth.
The equation of the line of best fit is y ≈ 5.10x+9.12. Therefore the correct option is 2.