Answer:
Option C is correct.
f = 2
Step-by-step explanation:
The mean is the sum of variables divided by the number of variables
Mean = (Σfx)/(Σf)
xi | 15 | 17 | 20 | 30 | 10 + f
fi | 4 | 4 | 6 | 5 | 6
Σfx = (15×4) + (17×4) + (20×6) + (30×5) + [(10+f)×6] = 60 + 68 + 120 + 150 + 60 + 6f = (458 + 6f)
Σf = 4 + 4 + 6 + 5 + 6 = 25
Mean = 18.8
18.8 = (458+6f) ÷ 25
458 + 6f = 25 × 18.8 = 470
6f = 470 - 458 = 12
f = (12/6) = 2
Hope this Helps!!!
Explanation:
Slope-intercept form: → 
m: represents the slope and is constant.
b: represents the y-intercept.
Rise/run.
<u><em>But the slope is -2.</em></u>
Hope this helps!
Thanks!
1. The slope intercept form is:
Where 
is the slope of the line and 
is the intercept with the y-axis.
2. To calculate the slope, you can use the following formula:
Where:
3. So:
4. Now you must find . Substitute any of the given points into the equation and solve for :
5. Therefore, the answer is the last option:
Answer:
3 cm
Step-by-step explanation:
Idk what the answer is to your question
