The best and most correct answer among the choices provided by the question is the the third choice which is "both true and false." I hope my answer has come to your help. God bless and have a nice day ahead!
Answer:
84 m^2
Step-by-step explanation:
We can break the polygon into a rectangle and a triangle
The rectangle at the bottom is 12 by 4
A = 12*4 = 48
The triangle at the top has a base of 12 and a height of (10-4) = 6
A = 1/2 (12) *6 = 36
The total is the sum of the two areas
A = 48+36 =84 m^2
Answer:
its 9
Step-by-step explanation:
Answer:
38.7°.
Step-by-step explanation:
from trigonometrical ratios
SO TO CA
H A H.
Tan°=opposite/adjacent.
Tan°=48/60
Tan°=0.8000
°= Tan-1(0.8000)
°=38.65°≈38.7°
Let's say the distance is "x".
time = distance / rate
time1 = x / 40
time2 = x/80
A) time1 shoud be twice time2 or (time1 / time2) =2
B) time1 -1 = time2
Substituting equation B) into A)
((time1 / (time1 -1) = 2
time1 = 2* time1 -2
time1 = 2 hours time2 = 1 hour
Distance = 80 miles
1st trip time1 = 80/40 = 2 hours
return trip time2 = 80/80 = 1 hour
total trip = 160 miles in 3 hours
average speed = 53.333333 miles per hour
