Answer:
See below:
Step-by-step explanation:
1. b
2. x=-2
3. b
4. (-7, 3)
5. (-2, 2)(1, -1)(3, 1)(2,4)
Answer:Mx +b
Step-by-step explanation:
Answer:
x= -(3/2) OR x= -1 1/2
Step-by-step explanation:
Answer:
Mean time and 13
Step-by-step explanation:
Given that
here is a five people and they spend the work in 7,10,13,20,15 hours respectively
Therefore here the concept i.e. used is average time or the meantime
And, this can be determined below:
= Sum of observations ÷ number of observations
= (7 + 10 + 13 + 20 + 15) ÷ 5
= 13
Substitute k for a, 9 for b.
(k - 9)² = k² - 2k×9 +9²
= k² -18k +81