Answer:
19.34cm
Step-by-step explanation:
Rigth Angled triangle
use SOHCAHTOA
Cos°=adj/hyp
Cos 71=6.3/BC
BC=6.3/COS 71
COS 71°= 0.3256
BC=6.3/0.3256
BC= 19.34cm
Assume uniformly accelerated motion
Vf = Vo - at => a= [Vo - Vf] / t
Vf = 0, t = 20 s => a = Vo / 20
x = Vot - at^2 / 2
x = Vot - (Vo / 20) * t^2 /2
x = 1775 feet * [1 mile / 5280 feet] = 0.336 mile
t = 20 s
=> 0.336 = 20Vo - Vo(20)^2 /(40) = 20Vo - 10 Vo = 10 Vo
=> Vo = 0.336 /10 = 0.0336 mile /s
Vo = 0.0336 mile/s * 3600 s/h = 120.96 mile / h
Therefore, the car was way over the speed limit.
Answer: I think it's $120
Step-by-step explanation: February has 28 days and the dogs eat a whole bag in a week.
So, there will be 4 weeks in 28 days. Since the the cost of a bag is $30 then I guess you would multiply that by each week
So, 30 x 4 = 120
Answer:
area = 2348 ft^2
Step-by-step explanation:
(15 x 40) + (28x40) + Pi(20^2)(0.5) = area
area = 600 + 1120 + 628 = 2348 ft^2