Answer: Half the students weighed less than 7 pounds, 5 ounces, and half the students weighed more.
Step-by-step explanation:
Answer:

Step-by-step explanation:
Based off of what we do know, if we can find length DB we can use the pythagorous theorem (I will be assigning the variable z)

First equation is for triangle ABD
Second is for BCD
And the last one is for ACD
Substitute
and 

As discovered before

The answer is D. because if you do 57.75 divided by 5.5 you get 10.5 mi/h
hope this helps :)
Answer:
all are congruent via SAS
Step-by-step explanation: