To evaluate a function at a given input, you have to substitute every occurrence of the variable with that particular value.
So, for the first function, you have
The name of the variable is obviously irrelelvant, so the same goes for the second function:
check the picture below on the top side.
we know that x = 4 = b, therefore, using the 30-60-90 rule, h = 4√3, and DC = 4+8+4 = 16.
now, check the picture below on the bottom side.
since we know x = 9, then b = 9, therefore DC = 9+6+9 = 24, and h = b = 9.
Answer:
Step-by-step explanation:
For this exercise it is important to remember that:
1. The Addition property of equality states that:
If , then
2. The Subtraction property of equality states the following:
If , then
3. The Division property of equality states that:
If , then
4. The Multiplication property of equality states the following:
If , then
Then, having the following equation given in the exercise:
You need to solve for the variable "r" in order to find its value.
In order to solve for "r", you must apply the Addition property of equality adding 14 to both sides of the equation.
Therefore, you get the following solution:
