7 is the answer i hope this helps
Answer:
Makenzie is correct, 13.93 ≈c
Step-by-step explanation:
the sides with determined lengths (see image) are A (13) and B (5). C however is not determined.
the correct equation would be to solve for c.
13² + 5² = c²

c ≈ 13.93
Clara solved for b and not c, which is incorrect.
Answer:
3x^2-1
Step-by-step explanation:
3x + 5x + 7x = 180
15x = 180
x = 180/15
x = 12
Largest angle = 7x = 7*12 = 84°
Answer:
23
Step-by-step explanation:
multiply the cost by 3