1. find the speed of a car
the distance is 124 miles and the time is 2 hours
the speed is defined as distance / time, therefore
speed = 124/2 = 62 miles/hour
that is the speed
2.find the time from equation time = distance/speed, when the distance is 395 miles and the speed is 79 miles/hour, then
time = 395 miles / 79 miles/hour = 395/79
time = 5 hours
Answer:
A = 60°
Step-by-step explanation:
First to find the missing angle you add the three known angles,
90 + 135 + 75 = 300
Then, you subtract, 360 - 300 = 60
<h3>So, 360° = 60° + 90° + 135° + 75°</h3><h3 />
Since DC = 12, then EF also = 12.
Both AD and BC are indicated to be the same .
So AE = (24 - 12) / 2 = 12/2 = 6
Now you have a right triangle with height DE = 8 and base AE = 6
Using the Pythagorean Theorem we can now find AD:
AD = √(8^2 + 6^2)
AD = √(64 + 36)
AD =√100
AD = 10
