I think the answer is B) i’m not 100%
Answer: -287
Step-by-step explanation:
The given pattern: 9, 1, -7, -15, ….
We observe that ,
First term : a=9
Common difference between the terms= 1-9=-8
For Arithmetic sequence , the formula to find the nth term is given by :-

Then, 38th term will be :-

Hence, the 38th term of the sequence.= -287
Answer:
The answer is first point, A = 67.5units²
Step-by-step explanation:
Given that the area of triangle is (1/2)×base×height. So use this formula to find the area :
base = 9units
height = 15units
Area = (1/2)×9×15
= 67.5units²
It is 5:9 in simplest form