Answer:
672
Step-by-step explanation:
Answer:
The triangle is a right triangle
Step-by-step explanation:
a4.4 x b11.7=c12.5 a4.4=19.36 b11.7=136.89 12.5=156.25 if you add a squared and b squared you get 156.26 which means its an right triangle
Answer:
D and E
Step-by-step explanation:
This doesn’t make sense what do u mean by this
Answer:
The correct option is B.
Step-by-step explanation:
It is given that Susan drove an average speed of 30 miles per hour for the first 30 miles of a trip & then at a average speed of 60 miles/hr for the remaining 30 miles of the trip.
![Time=\frac{Distance}{Speed}](https://tex.z-dn.net/?f=Time%3D%5Cfrac%7BDistance%7D%7BSpeed%7D)
Time taken by Susan in first 30 miles is
![T_1=\frac{30}{30}=1](https://tex.z-dn.net/?f=T_1%3D%5Cfrac%7B30%7D%7B30%7D%3D1)
Time taken by Susan in remaining 30 miles is
![T_2=\frac{30}{60}=0.5](https://tex.z-dn.net/?f=T_2%3D%5Cfrac%7B30%7D%7B60%7D%3D0.5)
Total distance covered by Susan is
![D=30+30=60](https://tex.z-dn.net/?f=D%3D30%2B30%3D60)
Total time taken by susan to complete 60 miles trip is
![T=T_1+T_2](https://tex.z-dn.net/?f=T%3DT_1%2BT_2)
![T=1+0.5=1.5](https://tex.z-dn.net/?f=T%3D1%2B0.5%3D1.5)
Susan's avg speed in miles/hr for the entire trip is
![S=\frac{60}{1.5}=40](https://tex.z-dn.net/?f=S%3D%5Cfrac%7B60%7D%7B1.5%7D%3D40)
The average speed of susan for entire trip is 40. Therefore the correct option is B.