Answer:
P(x) = 
- 7x² + 12
Step-by-step explanation:
Given zeros x = 2, x = - 2, x = 
, x = -
Then the factors are (x - 2), (x + 2), (x - ), (x + )
and the polynomial is the product of the factors, that is
P(x) = (x - 2)(x + 2)(x - )(x + ) ← expand in pairs using FOIL
= (x² - 4)(x² - 3) ← distribute
= - 3x² - 4x² + 12 ← collect like terms
= - 7x² + 12
I am not very good you should probably ask someone else sorry
B
5,000
because the library has more than or = to 5000 books.
Answer: (2.75-2.40)/(2.75) * 100 [Before rounding to the nearest tenth]
Step-by-step explanation:
Formula for percentage decrease = (old-new)/(old) * 100
so substituting in, you get (2.75-2.40)/(2.75) * 100
From here, you can just plug this into a calculator (don't have on me rn)
