Infinitely many because change of any kind by rotation gives the same cylinder along the axis shown.
I used the generic rectangle/diamond method, although the quadratic formula would work just as well with a=3, b=11, c=6. Put that into the quadratic formula

to get that your factors are x = -2/3 and -3. Putting those into factorization form you get the 2 factors as (3x+2)(x+3)
Answer:
1. 
2. 
Step-by-step explanation:
1. 
Do cross multiplication

Distribute 3 through the parentheses

Move 3x to left hand side and change it's sign

Collect like terms

Divide both sides by 3

Calculate

The value of x is 1
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2. 
Do cross multiplication

Distribute 2 through the parentheses
Similarly, distribute 6 through the parentheses

Move 12n to left hand side and change it's sign
Similarly, move 48 to right hand side and change it's sign

Collect like terms

Add the numbers : 48 and 2

Divide both sides by -10

Calculate

The value of n is -5 .
Hope I helped!
Best regards! :D
F(5)=5(5-2)=15
The answer is 15.
The triangle is b.
hope this helps