Answer:
CD=9
Step-by-step explanation:
ΔABD=>
AD²=AB² + BD² [Pythagorean Theorem]
BD²= AD²-AB²
BD²=9²-3²
BD²=72
BD=√72=6√2....(1)
ΔBCD=>
CD²=BD²+BC²
CD²=(6√2)² + 3²
CD²=72+9
CD²=81
CD=√81
2x – 4y = 6
x3 – y = –2
When graphing these two are linear.
Answer: 13 times as much
8.45/0.65
He answered 20 questions correctly.
25×.8(80%) = 20.
