Answer:
4.
f(x) = (x + 2)(x + 1)(x - 3) = x^3 - 7·x - 6
a = 0 ; b = -7 ; c = -6
5.
a = -3 ∧ b = -2 ∧ c = -3
Answer:
<h3>n>-5/2</h3>
Step-by-step explanation:
First, you have to isolate it on one side of the equation. Remember that, isolate n on one side of the equation.
6n-3>-18
6n-3+3>-18+3 (Add 3 from both sides.)
-18+3 (Solve.)
-18+3=-15
6n>-15
6n/6>-15/6 (Divide by 6 from both sides.)
-15/6 (Solve.)
-15/6=-5/2
n>-5/2
In conclusion, the correct answer is n>-5/2.
(f + g)(x) means f(x) + g(x)
So, you just input the function of f(x) and g(x) altogether, then simplify it.
(f + g)(x)
= f(x) + g(x)
= 2x² + 1 + x² - 7
= 2x² + x² + 1 - 7
= 3x² - 6
The answer is b
Answer:
(a) No; rainfall amounts are positive
Step-by-step explanation:
Rainfall amounts are measured using a gauge that reports the amount as zero when the gauge is empty. Any rainfall adds to the amount in the gauge, so is reported as a positive number. There is no way to remove more rainfall than is in the gauge, so there is no way to have a negative rainfall amount
A prediction of a negative rainfall amount makes no sense, because you can't have a negative amount of rainfall.
