Answer:
9ft is 2nd answer
1st is 100in
x² + 4x + 20 = 12x - 5
x² + 4x - 12x + 20 + 5 = 0
x² - 8x + 25 = 0
Δ = √b² - 4ac
= √(-8)² - 4×1×25
= √64-100
= √(-36)
x ∉ R
There is no table
Step-by-step explanation:
But to construct a histogram, we use frequence on the y-axis and class boundaries on the x-axis
