The answer would that it is false. It can be used for any triangle
Given:
and
where
.
To find:
The explicit formula for the given recursive formula.
Solution:
We know that recursive formula of an AP is:

Where, d is the common difference.
We have,

Here, d=9.
The first term of the AP is
.
The explicit formula for an AP is:

Substituting
and
, we get



Therefore, the required explicit formula for the given sequence is
.
No, this triangle is not equilateral. This triangle is scalene. All three sides are of different lengths, which is why it's scalene. In order to have an equilateral triangle, all three sides need to be the same length.
Answer:
y=x-5
Step-by-step explanation:
the slope is one
So to find the y intersect you need to plug in the numbers given, like this:
-2=3 + b
subtract the three
-5=b
the y intercept is -5
y=x-5
90% of 20 is x
20 times 90% is x
20 times .9 equals 18
The restaurant served 18 salmon filets.