Answer:
216 cm²
Step-by-step explanation:
Applying,
V = lwh..................... Equation 1
Where V = volume of the cubiod, l = length of the base, width of the base, h = heigth of the cubiod.
From the question,
Since the base of the cubiod is squared,
Therefore,
w = l = 4 cm, V = 400 cm³
Substitute these values into equation 1
400 = 4×4×h
h = 400/(4×4)
h = 25 cm
A = lw+lh+wh.................. Equation 1
Where A = surface area of the cuboid.
Given: l = 4 cm. w = 4 cm, h = 25 cm
Substitute these values into equation 1
A = (4×4)+(4×25)+(4×25)
A = 16+100+100
A = 216 cm²
Answer:
1.5n+9.5m^2
Step-by-step explanation:
7m^2 + 6.5n -4n + 2.5m^2 -n
Combine like terms
6.5n-4n-n+7m^2+2.5m^2
1.5n+9.5m^2
Answer option a is the answer
Answer:
Step-by-step explanation:
Use the distance formula:
For us that will look like this:
which simplifies to
and a bit more to
so
