Answer:
I AM FIRST
Step-by-step explanation:
Answer:
B. 11
Step-by-step explanation:
Hope this helps! ;-)
Answer:
m + 15
Step-by-step explanation:
Start at the end and work backwards to the beginning of the sentence. Most times these work like that. I'll start with "m", then I know that 15 more than "m" is m + 15. It would be the same thing to express that particular problem as 15 + m because addition is commutative. But subtraction is not.
"15 less than m" is m - 15, wheras
"m less than 15" is 15 - m.
This matters because if m = 10, for example, 10 - 15 = -5 where 15 - 10 = 5
5 and -5 are not the same answer.
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
CD=9
Answer: V 3
Step-by-step explanation: