Answer:
See Explanation
Step-by-step explanation:
The question is incomplete, as the options to select the required condition from were not listed. So, I will answer on general terms
From the question, we understand that the cube has an open-top and the surface ares is 256 in^2
Let L represents the edge length, the surface area (S) is:

Substitute 256 for S

Divide both sides by 5

Take square roots of both sides:


---- approximated
The volume of the cube is:




<em>So, the edge length of the cube is 7.16 inches and the volume is 366.36 cubic inches</em>
<em />
Answer:
y=-1
Step-by-step explanation:
do one half of 30 which is 15 (basically 0.5 multiplied by 30 but easier)
you plug in the 15
do 14-15
since there are not enough positive numbers to solve it becomes -1
Answer:
They are 30.93 in³ altogether.
Step-by-step explanation: V = 4/3 π r³
r = 2.7/2 = 1.35
π x 1.35 x 1.35 x 4/3 = 10.31 in³
10.31 x 3 = 30.93
Answer:
Jane is 11 1/4 years old.
Step-by-step explanation:
Subtract all of the numbers given.
.
To subtract this, we need to find a common denominator.
A common denominator in this situation is 12. To do this multiply the 5 and the 6 of 5/6 by 2. Multiply the 1 and the 3 of 1/3 by 4. And multiply the 1 and the 4 1/4 by 3.
The new expression will look like this:
.
Now we can subtract.

Reduce the answer.

In decimal form 11.25
Hope this helps!
If not, I am sorry.
We consider an approximation of the gravity g=10.
Then the speed is given by the formula: s(t)=10t.
And the coordinate is given by the formula:x(t)=5t^2+t
(integrating the speed function).
Now set up the equation:

Solving the above equation for t we get:t =
14 seconds.
<span>It will take 14 seconds for the penny to reach the ground.</span>