Answer:
Step-by-step explanation:
let the first piece=x ft
second piece=2 x ft.
third piece=6 x ft.
x+2x+6x=180
9 x=180
x=20
first piece=20 ft.
Set up an equation to see how this makes sense.
Let X be your original number.
So...
2(3x-7)-22/6=-3
6x-14-22/6=-3
6x-36/6=-3
6x-36=-18
6x=18
X=3
1. No; it is not written as a number times the power of 10.
2. 1.22×10^9
3. 2.87×10^−2
4. 5000
5. is answered in attached picture.
6. 3.212×10^3
Drawing a scatter plot for the given values on a graphing calculator, we have;
<h3>How can the function that best represents the data be found?</h3>
The values are;
Day; Running time
1; 8.2
2; 8.1
3; 7.5
4; 7.8
5; 7.4
6; 7.2
7; 7.1
Entering the above values in a graphing calculator, we have;
- The slope of the line of best fit = -0.19
- The x-intercept = 45
Therefore;
- 0 = -0.19 × 45 + y-intercept
0 = -8.36 + y-intercept
The equation found using the statistics function for scatter plot on a calculator is therefore;
Learn more about scatter plots here:
brainly.com/question/2605413
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