Step-by-step explanation:
step 1: multiply
by ![3^n](https://tex.z-dn.net/?f=3%5En)
2 × 3 = 6
to times power you must add them
<h3 /><h3><em>eg: </em>
![x^3](https://tex.z-dn.net/?f=x%5E3)
<em> × </em>
![x^4](https://tex.z-dn.net/?f=x%5E4)
<em /></h3><h3><em>3+4=7</em></h3><h3><em>=</em>
![x^7](https://tex.z-dn.net/?f=x%5E7)
<em /></h3>
×
= ![6^{m+n}](https://tex.z-dn.net/?f=6%5E%7Bm%2Bn%7D)
step 2: rearrange
= 108
<u />
can you do this step by yourself
(a)^2+(b+22)^2=(c+44)^2. Then just solve for the variables
Answer:
0.75m
Step-by-step explanation:
The volume of a prism is:
the area of the cross section × length
In this case the cross section is the circle so the formula is
v = πr²h
volume = 21m³
height or length = 12m
Sub in the values:
21 = πr² × 12
1.75 = πr² (I divided both sides by 12)
0.5570423008 = r² (I divided both sides by π)
r = 0.74635... (I square rooted both sides)
r ≈ 0.75m (to 2 d.p)