The solution for this problem is:
Answer:
<em>42/63 = .6 repeating</em>
<em>30/38 = .625</em>
<em>36/60 = .6</em>
<em>57/90 = .63 repeating</em>
Step-by-step explanation:
Nd if I'm wrong then the 2nd nd 3rd one are switched
Answer:
y=-x-4
Step-by-step explanation:
Answer:
A) A(t) = 4500*π - 1600*t
B) A(4) = 7730 in³
C) t = 8,8 sec
Step-by-step explanation:
The volume of the sphere is:
d max = 30 r max = 15 in
V(s) = (4/3)*π*r³ V(s) = (4/3)*π* (15)³
V(s) = 4500*π
A) Amount of air needed to fill the ball A(t)
A(t) = Total max. volume of the sphere - rate of flux of air * time
A(t) = 4500*π - 1600*t in³
B) After 4 minutes
A(4) = 4500*π - 6400
A(4) = 14130 - 6400
A(4) = 7730 in³
C) A(t) = 4500*π - 1600*t
when A(t) = 0 the ball got its maximum volume then:
4500*π - 1600*t = 0
t = 14130/1600
t = 8,8 sec
My English is not that great but if I got it right the answer is 3