1) x² - 13x + 30 = 0
x² ⇒ x * x
-13x ⇒ -10x - 3x
30 ⇒ -10 * -3
(x-10) (x-3) = 0
x - 10 = 0 ⇒ x = 10
x - 3 = 0 ⇒ x = 3
Answer is Choice D:) x = 3 or x = 10
2. P(x) = 480x - 2x²
a) P(100) = 480(100) - 2(100²) = 48,000 - 20,000 = 28,000
b) P(120) = 480(120) - 2(120²) = 57,600 - 28,800 = 28,800
c) P(240) = 480(240) - 2(240²) = 115,200 - 115,200 = 0 THIS IS THE ANSWER.
An integer is any positive or negative WHOLE number. So a few examples are 2, -4 and 7.
Answer: The answer is 3n + 2
Step-by-step explanation: You will have to combine like terms:
=−n + −4 + 4n + 6
=(−n + 4n) + (−4 + 6)
=3n + 2
