The main numbers and ratios or rates depending on the problem
Answer:
The given expressions simplifies to tan (4x).
Step-by-step explanation:
Here, the given expression is : 
By TRIGONOMETRIC IDENTITY:

Putting this identity here, and taking A = 9 x, B = 5 x, we get

= tan(4x)
Hence, the given expressions simplifies to tan (4x).
Solution
Find the y-intercept for following equation:

Using the slope equation formular:

The value of y when x = 0

Hence the answer is - 1
Answer:
Paige’s net income for December is $950
Step-by-step explanation:
Here in this question, we are interested in calculating Paige’s net income for December
Mathematically;
Net income = Monthly wage - Total Expenses
From the question, monthly wage = $1,850 while the total expenses = $900
Thus, the net income will be ; $1,850 - $900 = $950