Okay, the number above the sigma(4) indicates what value you go to, and what's below the sigma tells you where to start, and the stuff on the right is the expression you're using.
So we start with 1 and go to 4, adding all the values in between.
(2(1))^2 + (2(2))^2 + (2(3))^2 + (2(4))^2
2^2 + 4^2 + 6^2 + 8^2
4 + 16 + 36 + 64
120
Answer:
134
Step-by-step explanation:
Answer:
100 tiles
Step-by-step explanation:
You would set up the equation like this.
1.25t=0.75t+50
Then, solve for t and it will show you how many tiles you will need to buy for it to be equal.
Answer:
y = 3/x
Step-by-step explanation:
Answer:
Its a 25% chance you choose the correct answer
Also 1/4 odds
