Answer:
length PQ = 8.9 m
Step-by-step explanation:
The picture below completes the question you asked. From the picture above RSTU is a rectangle . The two shaded square has a length of sides 8 m and 4 m respectively. The legs of the triangle is the sides of the 2 squares. Therefore, the triangle is a right angle triangle. The adjacent side is 4 m while the opposite side is 8 m.
Using Pythagoras theorem the hypotenuse of the triangle can be calculated below.
Pythagoras theorem
c² = a² + b² Therefore,
c² = 4² + 8²
c² = 16 + 64
c² = 80
square root both sides
c = √80
c = 8.94427191
c ≈ 8.9 m
length PQ = 8.9 m
Answer:
180 degrees
Step-by-step explanation:
Answer:45 mi/h
Step-by-step explanation:
Recall: Speed = distance / time
Let the time taken for the morning journey be 
and the time taken for the afternoon journey be ,and the distance covered be d
that means for the first journey,
30 = 
d = 30
Also for the afternoon journey,
d = 60 
Equating the two , since the same distance is being covered , we have
30 = 60
that is
= 
= 2
Also ,
total distance covered = 30 + 60
Average speed = total distance / total time
= 30 + 60 / +
Recall that = 2 , substitute this into the formula for average speed , then we have
Average speed = 30(2) +60 / 3
Average speed = 120 / 3
Therefore :
Average speed = 40 mi/hr
Answer:
36 i believe
Step-by-step explanation:
you do base times height then divide that by 2
graph is with a rough sketch
if the base is 9 and the height is 8 as shown in angles a and b
you mutiply 9 and 8 to get 72
72 divided by 2 is 36
