First, convert all of the mixed numbers into improper fractions.
2 3/4=11/4
3 1/8=25/8
1 3/5=8/5
Now, we know that to find the volume, multiply width, length, and height together.
11/4*25/8*8/5=2200/160 or 55/4 known as 13 3/4
The volume is 13 3/4 cm cubed.
20)
using
<span>a^3 + b^3 = (a+b)(a^2 − ab + b^2)
</span>so
w^3 + 125z^3
= w^3 +(5z)^3
= (w + 5z)(w^2 - 5wz + 25z^2)
hope it helps
-7 × -3 = 21
(Negative × Negative = Positive)
21 × 4 = 84
Answer = 84
Hope this helped☺☺