Answer:x= 25
Step-by-step explanation:
504.2x + 29,165.8 is the number to divided by x.
Answer:
A
Step-by-step explanation:
The rectangle has an area of 30ft^2
Each triangle has an area of 25ft^2
25+25+30=80
The answer is 31/3 or 10⅓
Maybe The 30% And 70% Is In The Other Triangle And You Do The Same Thing Thats What I Am Guessing Not 100% Sure About It Because I Have Not Learned This Yet! :P
Answer:
Step-by-step explanation:
From conservation of energy, net work done on the box is equal to the change in kinetic energy of the box. This is written mathematically as:
1/2mvf^2 - 1/2mv^2 = mgdsintheta + (-umgdcostheta)
Where Vf= final velocity of box
V = initial velocity of box
d= distance travelled by the box
U= coefficient of kinetic friction
Theta= angle between the edge of the roof and the ground
-1/2(2.5)V^2= (2.5×9.8×5.5×Sin20° ) + (-(0.54)×9.8× 5.5× cos20°)
-1.25V^2= 46.09 + (-68.38)
-1.25 V^2 = -22.29
V^2 = -22.29/-1.25
V^2 = 17.83
V = Sqrt(17.83)
V = 4.22m/s
