25x^2 - 64y^2
The first thing you can do is look for a subtraction sign. The word difference implies subtraction, so you can rule out any expressions that add terms. Secondly, you can look for squares. 17x^2 - 23y^2 is a subtraction expression, but 17 and 23 are not squares. However, 25x^2 - 64x^2 is a subtraction expression and its terms are squares. 25 = 5x5, 64 = 8x8. Hope this helps!
Answer:
First, make a list of the possible outcomes for each flip. Next, count the number of the possible outcomes for each flip. There are two outcomes for each flip of a coin: heads or tails.
Step-by-step explanation:
these are just a few
Answer:
102 hours
Step-by-step explanation:
That would be 12 3/4 divided by 1/8 hours
= 51/4 / 1/8
= 51 * 8 / 4
= 408 / 4
= 102 hours
