Answer:
Step-by-step explanation:
9. Correct, D
-3Y + 9X <= 12
3Y - 9X => -12
3Y => -12 + 9X
Y => -4 + 3X
10. D
11. D
12. Correct, B
13. Correct, E
14. A
15. B
Answer:
The parametrization, of the given curve is 
Step-by-step explanation:
From the question we are given the function

At y= 5


Converting the above to it polar equation we have

Answer:
Value of y is 1536.
Step-by-step explanation:
We have given an expression 
We need to find the value of y when x=8
We will substitute the value of x as 8 in the given expression we get

On simplification we get

On further simplification we get:

Hence, the required value that is the value of y is 1536
9x + 4 = 58
9x = 54
x = 6
The number is 6.