<span>A zero pair is created when a pair of numbers, one positive and the other negative, equals a sum of zero.The main purpose of a zero pair is to simplify the process of addition and subtraction in complex mathematical equations featuring multiple numbers and variables. For example, in the problem 2+6-3-2, the positive 2 and the negative 2 cancel each other out because they are a zero pair, thus reducing the problem to 6-3.
Examples of Zero Pair:
-9 + 9 = 0</span>
Answer:
She was 20,000 ft high when she jumped from the plane.
Step-by-step explanation:
We can solve this problem with addition. Just add the 5,000 ft she was from sea level and the 15,000 feet she had already dropped, and you have how far she dropped, which is 20,00 ft.
Answer:
x_n = x_(n-1) - 3
Step-by-step explanation:
x_n = x_(n-1) - 3
Take the previous number and subtract 3
Answer:
1. x = 2, AC = 30, AB - 4
2. y = 4, AB = 34, BC = 34
Step-by-step explanation:
1. AB + BC = AC so 26 + (10 - 3x) = 14x +2 and then add 3x to both sides and subtract 2 from both sides to get x on one side and an integer on the other side which is 34 = 17x and then divide 17 from both sides to get x = 2 and then substitute x into the AC and AB equations to find the values its equal to.
2. The symbol in the given means that the two lengths are congruent which means they are equal to each other so you put the two equations equal to each other and solve for y. 9y -2 = 14 + 5y, so subtract 5y from both sides and add two to both sides to get 4y = 16 and then divide both sides by 4 to get y = 4 and then substitute in the answer to find the lengths of AB and BC.