Answer:the sum of the first 20 terms of the sequence 50, 100, 150,.... is equal to
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
To negatives make a positive
Let's convert them to decimals:
1/25 = 0.04
4% = 0.04
0.04 = 0.04
0.4 = 0.40.
So 0.4 is NOT equivalent to the other values.
Hello :) Nice to meet u :)
Since order is not important we are only looking for unique combinations of 3, so we need to use the "n choose k" formula.
n!/(k!(n-k)!), n=number of elements to choose from, k is the number of choices made....in this case:
30!/(4!(30-4)!)
30!/(4!*26!)
27405