Answer:
Yay! Christmas Music!
Step-by-step explanation:
Have a nice day! What was this question for though?
Answer:
x² - 6x + 9 = 0
Step-by-step explanation:
Given
(x - 3)² = 0 ( expand left side using FOIL )
x² - 3x - 3x + 9 = 0 ( collect like terms )
x² - 6x + 9 = 0 ← in general form
x-10= -30
move -10 to the other side
sign changes from -10 to +10
x-10+10= -30+10
x= -30+10
Answer:
x= -20
Answer:
a(n)=60-30n
Step-by-step explanation:
Equation to use:
a(n) = a(1) + d(n-1)
where a(1) is the first term, d is the common difference between terms, and n is the nth term you are trying to find.
In this case, a(1) is 30, d is -30, and n is just n.
If you plug that into the equation and use the distributive property, you would get: a(n) = 30 -30n + 30.
Adding the two 30's gets you: a(n) = 60 - 30n, which is the solution.
