Step-by-step explanation:
a1 = -4 = -4/1, a2 = 8/3
r = a2/a1 = (8/3) / (-4/1) = -2/3
the formula :
an = a1. r^(n-1)
so,
an = (-4). (-2/3)^(n-1)
Answer: x = 106.5
<u>Step-by-step explanation:</u>
You can use either sin or cos. I will use cos.

We know, Surface Area of a Cuboid, = 2(lb + bh + hl)
A = 2(7*2 + 2*6 + 6*7)
A = 2(14 + 12 + 42)
A = 2(68)
A = 136
Hope this helps!
Answer:
Step-by-step explanation:
You have a fraction, so a non permited value is one which will create a 0 in the denominator.
-3y + 9 = 0
y = 3