Step-by-step Answer:
To prove
Triangle ADC is congruent to triangle BDC
AC=BC (given)
DC=DC (common)
AD=BD (given CD bisects AB)
Therefore triangle ACD is congruent to BDC (justification: SSS)
Answer:Murphy is right
Step-by-step explanation: When there are two negitives right next to each other the cancel out so it turns into a positive make the question 9+8 making the answer 17.
Answer: d. The helicopter rotor will spin 36,000 times in 1 hour
Step-by-step explanation:
Option A is wrong because in 40 minutes the rotor will spin:
= 40 * 600
= 24,000 times
Option B is wrong because we cannot know the number of times the rotor will spin before being lifted off of the ground with the details given.
Option C is wrong because in 3 hours the rotor will spin:
= 600 * 3 * 60 minutes
= 108,000 times
Option D is correct because in 1 hour the rotor will spin:
= 600 * 1 * 60 mins
= 36,000 times
Answer:
No
Step-by-step explanation:
You can only have the same denominator
Example:
2 3 5
- + - = -
9 9 9
Answer:
X≤3
Step-by-step explanation:
This is because the arrow is moving down the number line
