When x= -3
7-2(-3)
=7+6
=13
Answer:
Mean = 109.4
Step-by-step explanation:
Mean = (Sum of all values)/(Number of values)
Mean = (100 + 121 + 105 + 113 + 108)/(5)
Mean = (547)/5
Mean = 109.4
The area of the triangle is 4.75.
You times 1.9 (the height) and 5 (the base) then divide the product by 2.
A = 1.9km x 5km / 2
p(x) = (x - 1)(x - 2(x - 3)
note that p(1) = 1 - 6 + 11 - 6 = 0
x = 1 is a root ⇒ (x - 1 ) is a factor
1 | 1 - 6 + 11 - 6
↓ 1 - 5 +6
1 - 5 6 0
p(x) = (x - 1)(x² - 5x + 6 ) = (x - 1)(x - 2)(x - 3)