Answer:
complementary angles
Step-by-step explanation:
∠1 and ∠2 form a right angle and are complementary, that is they sum to 90°
Answer:
The fractions 
are not in order from least to greatest.
Step-by-step explanation:
Given order of fractions from least to greatest:
To check if the fractions are in correct order.
Solution:
The fractions given have same numerators but different denominators.
For fractions the higher the denominator the lower is the value of that fraction.
Thus, in the given list the least value fraction will be the fraction with the greatest denominator which is 
and the greatest value fraction will be the fraction with the least denominator which is 
So, the order of the fractions from least to greatest is not correct. Instead the order is from greatest to least.
The correct order from least to greatest should be:
.
Answer:
Problem: The highest elevation in North America is Mt. McKinley, which is 20,320 feet above sea level. The lowest elevation is Death Valley, which is 282 feet below sea level. What is the distance from the top of Mt. McKinley to the bottom of Death Valley?
Solution: The distance from the top of Mt. McKinley to sea level is 20,320 feet and the distance from sea level to the bottom of Death Valley is 282 feet. The total distance is the sum of 20,320 and 282, which is 20,602 feet.
The problem above uses the notion of opposites: Above sea level is the opposite of below sea level. Here are some more examples of opposites:
top, bottom | increase, decrease | forward, backward | positive, negative
We could solve the problem above using integers. Integers are the set of whole numbers and their opposites. The number line is used to represent integers.
Step-by-step explanation:
Answer:
y=-4
Step-by-step explanation:
