Answer: -3
Step-by-step explanation: just multiply
According to the question requirements
v= 4/3*pi*r^3
dv/dt = 4*pi*r^2*dr/dt
when
d= 1.7
r= 0.85
and
dv/dt = 2
2= 4*pi*(0.85)^2*dr/dtthus the the speed of increasing of the balloon's diameter is
dr/dt = 1/(2pi*(0.85)^2)
=<span>0.2203 ft/min</span>
Answer:
{
}
Step-by-step explanation:
We are given that
In a freefall skydive, a skydiver begins at an altitude during free fall =10,000 feet
The skydiver drops towards earth at a rate=175 ft/s
The height of the skydiver from the ground can be modeled using the function

We have to find the domain of the function for this situation.
When t=0
Then ,
From given graph we can see that the value of t lies from 0 to 50.
Therefore, the domain of the function for this situation is given by
{
}
Answer:
0.43
Step-by-step explanation:
To calculate the relative frequency of any of the values in the frequency table, divide the value by the total (120)
For example, the relative frequency of boys who prefer math is:
43 ÷ 120 = 0.36
Reading from the frequency table, the total number of boys is 52. Therefore, the relative frequency for the total number of boys is:
52 ÷ 120 = 0.43