Answer: 
Step-by-step explanation:
By definition, the sum of the interior angles of a triangle is 180 degrees.
Based on this, you need to set up the following equation:
The next steo is to solve for "x" in order to find its value. This is:
You can observe in the picture of the triangle ABC given in the exercise, that:
Therefore, you must substitute the value of "x" into that equation and then evaluate, in order to find the measure of the angle B. This is:
Put this into ratio form:
20 baskets/ 4 minutes.
This means for every 4 minutes, you can make 20 baskets.
Now solve for 1 minute...how many baskets can you make in one minute.
You can solve this in many ways:
1. Cross Multiply:
20/4 = x/1...20×1= 20 ÷ 4= 5 baskets per minute
2. Simplify- (simpler way to solve)
20 baskets ÷ 4 minutes= 5 baskets in 1 minute
3. Critical Thinking:
how many times can 4 go into 20? 5 times. So there are:
5 baskets per minute
Do your own work that’s how you learn buddy jeez
Let's say the numbers are "a" and "b"
thus
set the derivative to 0, and check the critical points, there's only one anyway
and do a first-derivative test, to see if it's a maximum
1)Not a function
2)yes
3)not a function
