Answer:
53
Step-by-step explanation:
Hey there :)
The volume formula of a cylinder is:
V =
r²h
The volume of the larger volume is given to be 9648³ and the height is 18 in
We need to find the radius first
9648 =
r²(18)
=
r²
536 =
r²
= r²
= r
r ≈ 13.06
The ratio of the big cylinder to small cylinder is:
18 : 9 (given height)
So the big cylinder is
2 times bigger than the small cylinder
Therefore the radius of the big cylinder is as well 2 times bigger
r ≈ 6.53 ( the radius of the small radius )
V (of small cylinder) =
(6.53)²(9)
= 1206 in³
Two vectors are orthogonal if their dot product is zero. The dot product is the sum of the multiplications of entries with same index:
.
So, in your case,
So, the two vectors are orthogonal if and only if
The solution is indeed trivial: in that case, the second vector is the null vector, which is orthogonal to every possible vector.
Answer:
28
Step-by-step explanation:
just multiply width times length 4*7=28