I'll help you but I;m not just going to give you the answer
I'm gonna send you a picture because it'll explain the answer better
Answer a,b, and d
Explanation: c is the only correct expression while the rest aren’t
Answer:
Step-by-step explanation:
Area of a circle = pi x square of radius = 30.190 ft
Answer:
<u>131 seats</u> are in the 30th row.
Step-by-step explanation:
The theater is designed with the first row there are 15 seats, in second row 19 seats and in the third row there are 23 seats.
Now, to find the number of seats in the 30th row.
So, we get the common difference(
) from the arithmetic sequence first:

Thus,
So, the first tem
= 15.
The number of last row (
) = 30.
Now, to get the number of seat in the 30th row we put formula:





Therefore, 131 seats are in the 30th row.