I think you would multiply 4 and 10 and that equals 40.
Answer:
∠ EFH = 112°
Step-by-step explanation:
∠ ACD and ∠ EFH are Alternate exterior angles and are congruent, thus
11x - 20 = 9x + 4 ( subtract 9x from both sides )
2x - 20 = 4 ( add 20 to both sides )
2x = 24 ( divide both sides by 2 )
x = 12
Thus
∠ EFH = 11x - 20 = 11(12) - 20 = 132 - 20 = 112°
15
3 x 5 or 5 x 3
35
5 x 7 or 7 x 5
So the answer is 5
Yes it is a function because there are not any repeating x values ( first number in each set of parentheses)