Answer:
1872 cm^3
Step-by-step explanation:
To solve this you can split the shape into two parts, the large rectangle with length 18 and width 8, and the small rectangle with length 6 and width 3.
So now apply the volume formula,
for the larger shape,
V = Area * height
V = L*W *H
V = 18*8*12
The volume of one part is 1728.
Now for the second shape on top,
V = L*W*H
V = 6*8*3 = 144
Now add the two, 1728+ 144 = 1872
1872 cubic centimeters
Answer:
n = 2.8
Step-by-step explanation:
We need to solve the equation 5n+7 =21 to find the value of n.
Adding -7 on both sides
5n +7 -7 = 21 -7
5n = 14
Dividing both sides by 5
5n/5 = 14/5
n = 14/5
n = 2.8
Answer:
42
Step-by-step explanation:
6 to the second power is 36+6 is 42.
For this question, we use the Pythagorean theorem.

We know the lengths of the legs, a and b.


Now, let's solve for the hypotenuse, c.


Take the positive square root.

Hope this helps! :)
If two numbers round to the same number it doesnt always mean they are equal, for example: 11 and 9 both round to ten but they are not the same number