Answer:
19404
Step-by-step explanation:
sum of arithmetic series is
Sn = n/2 (2a + (n-1)d)
or
Sn = n/2 (a + an)
a = 1st unit
an = last unit
d = difference
8-3 or 13-8 so d = 5
then first step is to find the value of n
an = a + (n-1)d
438 = 3 + (n-1)5
438 - 3 = 5n - 5
435 = 5n - 5
435 + 5 = 5n
440 = 5n
n = 440/5
n = 88
then we can find the sum
Sn = 88/2 (3 + 438)
S88 = 19404
P.E.M.D.A.S.
Parentheses, exponent, multiplication, division, addition, subtraction
1. First simplify the exponents in the set of parentheses
2. Next multiply the decimals to the simplified exponent
3. Last subtract both numbers
And there is your answer
For every 3 seconds, the scuba diver dives 0.5 feet
after 15 seconds = your answer
3 x 5 = 15
0.5 x 5 = your answer
your answer = 2.5
2.5 is your answer
hope this helps
Two-hundred forty thousand, five
Answer:
Because Banana Man is a Banana
Step-by-step explanation: