Answer:
hey dude, The formula is (x-y)³=x³-3x²y+3xy²-y³.
A=-1, b=2 I hope this helped. Please please please if you like my answer mark Brainly:)
Answer:
8
Step-by-step explanation:
If Hannah gives her younger sister 3 shirts, it does not matter what order she hands them to her. No matter the order, it will still be the same group of 3 shirt. Since order is not important this problem can be solved using a combination.
Specifically we are asked to find 8C3 (sometimes called "8 choose 3"). This is a fraction. In the numerator we start with 8 and count down 3 numbers. In the denominator we start with 3 and count all the way down to 1. Thus we obtain,
Answer:
30°
Step-by-step explanation:
3x + (90 - 2x) = 180 - 60
x + 90 = 120
x = 120 - 90
x = 30°