2) you should put it in fraction terms, your answer is right, but it looks better as y/22
4) you don't need the dot, you can just write 2/3 x
7) same thing as 2, 2z/8
11) same thing as 2, c/4
They're all right :)
Answer:
p = ½ (x₁ + x₂)
q = a (x₁x₂ − ¼ (x₁ + x₂)²)
Step-by-step explanation:
y = a (x − x₁) (x − x₂)
Expand:
y = a (x² − x₁x − x₂x + x₁x₂)
y = a (x² − (x₁ + x₂)x + x₁x₂)
Distribute a to the first two terms:
y = a (x² − (x₁ + x₂)x) + ax₁x₂
Complete the square:
y = a (x² − (x₁ + x₂)x + ¼(x₁ + x₂)²) + ax₁x₂ − ¼ a(x₁ + x₂)²
y = a (x − ½ (x₁ + x₂))² + a (x₁x₂ − ¼ (x₁ + x₂)²)
Therefore:
p = ½ (x₁ + x₂)
q = a (x₁x₂ − ¼ (x₁ + x₂)²)
Answer:
answer in the attached image
Step-by-step explanation:
hope this helps, have a nice day :)
<span>16% is the answer Fam.....................................</span>
Answer:
6 minutes
Step-by-step explanation:
every minute is 120
720/120=6