The Drury Lane Theater has 10 seats in the first row and 38 rows in all. Each successive row contains one additional seat. How m
any seats are in the theater?
1 answer:
Answer:
1083 seats
Step-by-step explanation:
i just answered that.
arithmetic sequence
a1 = 10
an = an-1 + 1 = a1 + (n-1)×1 = 10 + (n-1) = 9 + n
a38 = 9 + 38 = 47 seats
the sum of such an arithmetic sequence
n×(a1 + an)/2
in our case
38×(10 + 47)/2 = 19×57 = 1083 seats
You might be interested in
Answer:
-7 and -6 #markasbrainliest
Answer to your question : 8 vans
Answer:
b sides
Step-by-step explanation:
the sides will have markings so you wont need the specific angles
Hypotenuse by Pythagoras theorem = 407.83.
Y = 3x - 7
just find the slope then use two point and point slope form to solve for slope intercept form
