Answer:
ok thanks for the info
Step-by-step explanation:
The answer to this is 954
You can use SAS since you know one pair of sides are congruent and AC splits them so those must make those sides equal. And since those sides, DC and BC, are congruent, the angles must be as well. You can use numbers to prove the angles of D and B or just use that when 2 sides and an angle are congruent, the 3rd side must be congruent.
3^2 + 4^2 = 5^2
9+16=25
25=25
yes this is a right triangle. i know this because when i use the pythagorean theorem it equals out.
hope that helped
The difference between the average speed in km/h of their trains are 53.538 km/h.
Step-by-step explanation:
The given is,
Davit's train travels 90 km in 50 minutes.
Mila's train travels 210 km. It leaves at 12:05 and arrives 13:35.
Step:1
From the given,
Time required to milas train travels 210 km
= 12:05 - 13:35
= 1.30 hours
Step:2
Time to Davit's train travels 90 km is need to convert in hours from minutes,
= 50 minutes
=
hours
= 0.833 hours
Step:3
Average rate of Davits train,
= ![\frac{Distance traveled}{Time taken}](https://tex.z-dn.net/?f=%5Cfrac%7BDistance%20traveled%7D%7BTime%20taken%7D)
= ![\frac{90}{0.833}](https://tex.z-dn.net/?f=%5Cfrac%7B90%7D%7B0.833%7D)
= 108 km/h
Step:4
Average rate of Mila's train,
= ![\frac{Distance traveled}{Time taken}](https://tex.z-dn.net/?f=%5Cfrac%7BDistance%20traveled%7D%7BTime%20taken%7D)
= ![\frac{210}{1.30}](https://tex.z-dn.net/?f=%5Cfrac%7B210%7D%7B1.30%7D)
= 161.538 km/h
Step:5
The difference between the average speed of the both trains in km/h,
= 161.538 - 108
= 53.538 km/h
Result:
The difference between, the average speed of their trains are 53.538 km/h.