Answer:
x = 9
Step-by-step explanation:
The product of the external part and the entire part of one secant is equal to the product of the external part and the entire part of the other secant, that is
5(x - 6 + 5) = 4(x - 3 + 4)
5(x - 1) = 4(x + 1) ← distribute parenthesis on both sides
5x - 5 = 4x + 4 ( subtract 4x from both sides )
x - 5 = 4 ( add 5 to both sides )
x = 9
13. 79
14. 79
15. 101
16. 101
17. alternate interior angles
18. alternate exterior angles
19. vertical angles
20. corresponding angles
Answer:
35x^2 - 112x - 364
it's probably wrong since I've only expanded the brackets
