Answer:
I could be wrong, but I believe that the answer is D, none. This is because there is only proof of one congruent side and angle.
Step-by-step explanation:
First answer is the correct answer
Average speed is the distance traveled by an object in total and divided by the amount of time an object covers the distance. The formula is -
Average speed = total distance traveled / total time taken
= 68km+64km / 2 hrs.+3hrs.
= 132km / 5hrs.
= 26.4km/hr.
Therefore, the train's average speed is 26.4km/hr.
Answer:
8.08 %
Step-by-step explanation:
Let us denote : 
score X follows a normal distribution with mean 
and standard deviation 
Step 2
The probability that someone scored 21.9 or less is :
Answer : 
Answer:
Step-by-step explanation:
Move 
to the denominator in 
using the negative exponent rule 
