Answer:
The answer is
or
.
Step-by-step explanation:
Solve the following equation:

-Multiply
and
to get

So, now you have found the answer.
<span>Chris' average speed is 3.5mph:
Lets take Chris' brother speed = B
then Chris speed = (B+ 1) mph-------given in the question
and:
The average speed for covering 18 miles= chris' average speed + his brother's
average speed = (B+ 1) + B
since Speed = Distance covered / time taken
then average speed for 18 miles can also be found by: 18 miles/3 hours = 6 miles per hour
then we have; (B+ 1) + B = 6mph
(B +1) = (6-B)
B+B = 6-1=5
2B=5
B=5/2=2.5 mph (this is Chris' brother average speed)
Hence Chris' average speed is = B+1= 2.5+1= 3.5mph</span>
The 6th term of the geometric sequence is of -4096.
<h3>What is a geometric sequence?</h3>
A geometric sequence is a sequence in which the result of the division of consecutive terms is always the same, called common ratio q.
The nth term of a geometric sequence is given by:

In which
is the first term.
For this problem, we have that:
- The first term is
.
, hence the common ratio is q = -4.
Thus the 6th term of the sequence is found as follows:

More can be learned about geometric sequences at brainly.com/question/11847927
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Answer:
A.
.
Step-by-step explanation:
We have been given an inequality
. We are asked to solve the given inequality for x.
Using distributive property, we will get:



Subtract 2 from both sides:


Divide both sides by 7:


Therefore, option A is the correct choice.