Answer:
160
Step-by-step explanation:
13² - 3² = 13 × 13 - 3 × 3 = 169 - 9 = 160
Answer:
-3
Step-by-step explanation:
cause positive = negative
the answer is = negative
Answer: same.
Step-by-step explanation:
180 is the degree of the whole angle so you subtract 180 from 77 to get P
180-77=103
P=103