Answer:
The rock remains in the air for t = 3.832 s
Step-by-step explanation:
To easily solve this equation, we can graph the equation with a calculator and see the interval for which the rock remains in the air.
(There is a minor problem with the equation, the last term should be 120 to model the 120 ft building)
h(t)= -16t^2 -30t + 120
Please see attached picture for the graph.
The time it takes for the ball to hit ground can be found by making
h(t) = -16t^2 -30t + 120 = 0
In the graph this point is equal to
t = 3.832 s
h(t) = 0
Volume of rectangular prism = length * width * height
Volume of triangular prism =( length * height * base )/2
Given,
Volume of rectangular prism = 18 + volume of triangular prism
18x = 18+14x
4x=18
x= 4.5 ft
So volume of rectangular prism = 6* 4.5* 3 = 81 ft³
Volume of triangular prism = (7* 4.5 * 4) / 2 = 63 ft³
Answer:
200 times and 2x10^2
Step-by-step explanation:
I hope this helps ( ps love the Killua Profile pic !)
Answer:6
Step-by-step explanation:
2.5 x 2.5 x 2.5 =15.625 (volume of one cube)
7 x 5 x 3 =105 (volume of cuboid)
105/15.625 =6.75
she cant make 3/4 of a cube therefore the greatest amount of cubes she can make is 6.
Answer:
34 members
Step-by-step explanation:
The math club at Emily's middle school has the number of members = 40
On Saturday only 85% of the members were attend the meeting.
Number of members who attend the Saturday meeting
= 85% of 40
= 0.85 × 40
= 34 members
34 members attend the Saturday meetings.
