Answer:
Total cost = $(x⁴ + 12x³ - 45x²)
Step-by-step explanation:
It is given that a state department of public safety added (1/3)x² + 5x miles of highway to connect CoolTown and Bragville.
So, length of highway; L = (1/3)x² + 5x miles
Cost of highway; C = $3x² - 9x per mile
Thus, total cost = LC
Total cost = ((1/3)x² + 5x) x (3x² - 9x)
Total cost = x⁴ - 3x³ + 15x³ - 45x²
Total cost = $ x⁴ + 12x³ - 45x²
Answer: Yes
Step-by-step explanation:
You can find out by inputting your values
2y + 3x = 13
x = 5
y = - 1
2(- 1) + 3(5) = 13
- 2 + 15 = 13
13 = 13
has y = 0 as a solution.
Selection B is appropriate.
Answer:
1) A, C, and D all represent linear equations.
2) A, C, and D are functions; none of them have repeating x values.
3) D
