Answer:
(-1)* (3)^(n-1)
Step-by-step explanation:
common ratio is 3 and the first term is -1
the explicit formula is a * r^ ( n-1)
i.e., (-1) * 3^(n-1)
Answer:
The answer is D
Step-by-step explanation:
Why
The board is originally 108 inches long when you cut it in half that makes it two different pieces
You would divide 108 by 2 and you get D
Hoped this helped
Answer:
Step-by-step explanation:
X^4 - 10X^2 + 9 =0 This factors. It just looks odd.
(x^2 - 1)(x^2 - 9) = 0
x^2 - 1 = (x + 1)(x - 1) = 0
x = 1 and x = - 1
x^2 - 9 = (x + 3)(x - 3) = 0
x = 3
x = -3
The correct answer is C (third one down).
Answer:
C
Step-by-step explanation:
they are alternative interior angles!
Answer:
You can use the quadratic formula
Step-by-step explanation:
X= -b +/- √b^2-4(a)(c)÷ 2(a)
Substitute and simplify to find x