Answer:
0.212 sq-m
Step-by-step explanation:
(refer to attached)
Volume of a cylinder is given by
V = πr² h, where 3 is the radius and h is the height
in this case, h is given as the length of the cylinder of 3 m
r is given to be (3/20)m
hence,
V = πr² h
V = π(3/20)² (3)
V = π (9/400) (3)
V = π (27/400) (assuming π = 3.142)
V = 3.142 (27/400) = 0.212 sq-m
Step-by-step explanation:
Number of revolutions made by wheel
![= \frac{distance \: travelled}{circumference \: of \: wheel} \\ \\ = \frac{704}{2\pi \: r} \\ \\ = \frac{704}{2 \times \frac{22}{7} \times 28} \\ \\ = \frac{704}{2 \times 22 \times 4} \\ \\ = \frac{704}{176} \\ \\ = 4 \\](https://tex.z-dn.net/?f=%20%3D%20%20%5Cfrac%7Bdistance%20%5C%3A%20travelled%7D%7Bcircumference%20%5C%3A%20of%20%5C%3A%20wheel%7D%20%20%5C%5C%20%20%5C%5C%20%20%3D%20%20%5Cfrac%7B704%7D%7B2%5Cpi%20%5C%3A%20r%7D%20%20%5C%5C%20%20%5C%5C%20%3D%20%20%5Cfrac%7B704%7D%7B2%20%5Ctimes%20%20%5Cfrac%7B22%7D%7B7%7D%20%20%5Ctimes%2028%7D%20%20%5C%5C%20%20%5C%5C%20%20%3D%20%5Cfrac%7B704%7D%7B2%20%5Ctimes%20%2022%20%20%5Ctimes%204%7D%20%20%5C%5C%20%20%5C%5C%20%20%3D%20%5Cfrac%7B704%7D%7B176%7D%20%20%5C%5C%20%20%5C%5C%20%20%3D%204%20%5C%5C%20)
Hence the wheel will make 4 revolutions.
Answer:
5/5
Step-by-step explanation:
7/4 × 5/5 = 35/2
hole this helps
Answer: B=5
Step-by-step explanation:
if you plug 5 in for B, the equations equal to each other
6(5)-2=5(5)+3
30-2=25+3
28=28
NOW plug in each number to show the work (even though we already know it’s 5)
we need the previous question