Answer:
2nd one
Step-by-step explanation:
(x*x*x*x*x*x*x*x*x)
or x^9
Answer:
38.40
Step-by-step explanation:
here you go!!!!!!!
Answer:

.
Step-by-step explanation:
Arithmetic sequence

.
First step, find its difference



.
So, we get


.
Finally, Let's find the 75th term




Answer:
22
Step-by-step explanation:
This is a right angle so the sum of those would be equal to 90 degrees
x + 7 + 3x - 5 = 90 add like terms
4x + 2 = 90 subtract 2 from both sides
4x = 88 divide both sides by 4
x = 22