Answer:

Step-by-step explanation:
Let
, that is a be any real number.
The inverse property of addition says that, the sum of a number
and its additive inverse
gives the identity element of addition which is zero.
That is :

We can rewrite this as 
From the above options, we have the correct answer to be the first choice
Answer:
<h2>6.5</h2>
Step-by-step explanation:
Given the sum of the series represented as
. <u>To get the sum to infinity of the geometric series, we need to get its first term and its common ratio</u>. comparing to the general term of the sum of series of a GP
a = first term of the series
r = common ratio
On comparing to the given series, a = 1.3 and r = 0.8
Sum to infinity of a Geometric series is expressed as:

Answer:
i think its B
Step-by-step explanation:
Answer:

Step-by-step explanation:
Given


Required
Determine the equation
First, we calculate the intercepts using:

Where
b = Intercept on y axis.
a = Intercept on x axis.
From the question:

The equation becomes:

Multiply through by 3b

We have: 
So:


Make b the subject

Substitute
in
to get the equation


Make 3y the subject

Make y the subject

Answer:
6 and 7 for the square root or 38 and 40 im not sure on which by the wording being very low standard