Answer:
r = 6
Step-by-step explanation:
Using Pythagoras' identity in the right triangle
PR² = PQ² + QR² , substitute values
(r + 4)² = r² + 8²
r² + 8r + 16 = r² + 64 ( subtract r² from both sides )
8r + 16 = 64 ( subtract 16 from both sides )
8r = 48 ( divide both sides by 8 )
r = 6
10,000-1,000=9,000 -100
8,900,i think maybe
Answer:
5
8
20
Step-by-step explanation:
Answer:
1 ) a 2) b 3) d 4) b 5) a 6) c
Step-by-step explanation: