Answer:
x=4
Step-by-step explanation: So you do 2x plus 1x which is 3x. Then you divide both sides by 3 which leaves you with x=4. Thats your answer. <3
Answer:
The value of
is -16.
Step-by-step explanation:
We need to evaluate
for x = -1, y = 5 and let us assume that z = 1
It can be simply done by putting the values of x,y and z in the given expression.

We know that the value of 4² = 16
So,

So, the value of
is -16.
Answer:
9.2, 11/12, 91.7, 91.6, .91
Step-by-step explanation:
The sum of n terms of a geometric series is given by

Substituting the given numbers, you have

There are 6 terms in the series.
Answer:
0.2
Step-by-step explanation: