Answer:
the first statement is: AB is congruent to DC.
reason: given
Step-by-step explanation:
im not sure about the others
That's a rectangular prism.
And the formula to find the volume of a rectangular prism is:
Plug in what we know:
Multiply the three numbers together:
5/10 in 3 equivalent forms is: 1/2 2/4 4/8
Let n = the hours elapsed when the two trains are 660 miles apart.
Let the first train travel east and the second train travel west.
The distance traveled by the first train is
x = (50 mi/h)*(n h) = 50n mi
The distance traveled by the second train is
y = (60 mi/h)*(n h) = 60n h
The distance between the two trains after n hours is
x + y = 50 n + 60n = 110n mi
Because this distance is 660 miles, therefore
110n = 660
n = 6 hours
Answer: 6 hours
I hope this helps. Sorry it took so long
Yes
(2+5)+8=2+(5+8)
7+8=2+13
15=15
