HK consists of two part, HJ and JK
HK = HJ + JK
We know that:
HK = 12.2ft
JK = 3.1ft
HJ = ?
Let's plug our values into the equation above.
12.2ft = HJ + 3.1ft
Subtract 3.1ft from both sides.
9.1ft = HJ
Answer:
B maybe? that doesnt equal any
Step-by-step explanation:
f(x)=3x^2+6x
f(2)=3(2)^2+6(2)
f(2)=3(4)+12
f(2)=12+12
f(2)=24