Answer:
a+7
Step-by-step explanation:
2 + 5 = 7
7+a or a+7
Answer:
2 nd one
Step-by-step explanation:
The answer is a line graph
Answer:

Step-by-step explanation:
Given


Required
Find CD
This question is represented with the attached triangle
To solve CD, we make use of tan formula.

Substitute 12 for DE

Make CD the subject


--- approximated

is undefined if the argument

is negative, so you first need to require that

We're not done yet, though, because

still doesn't exist when

, so we remove this from the domain and we're left with

, or in interval notation,

To find the range, consider the limits of the function as you approach either endpoint of the domain.


Since

is positive everywhere, the range is