Find the circumference of the circle in terms of
lt=" \pi " align="absmiddle" class="latex-formula">
A. 156
in
B. 39pi in
C. 1521pi in
D. 78pi in
A. 156
B. 39pi in
C. 1521pi in
D. 78pi in
1 answer:
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Answer:
There are 0.1 mililiters in 5 milimeters saline.
Step-by-step explanation:
A 2 % suspension means that 2 % of the volume of a given substance per each 100 milimeters of saline. That is:
Where:
- Suspension ratio, dimensionless.
- Saline volume, measured in milimeters.
- Substance volume, measured in milimeters.
Given that and
, the volume of the substance is:
There are 0.1 mililiters in 5 milimeters saline.
[scomposition of 45]
[9 = 3^2, must use this notation (not 3*3)]
[We appy one of the proprieties of square roots]
[now we semplify: we must take out as much as possible all the elements under roots]
[to do that, we must divide the esponent of each element with the index of square roots (2)]
so
, 2/2 = 1
, 1/2 = 0 with 1 of rest
, 5/2 = 2 with 1 rest
[well, after do that, we can take out the elements under tbhe square roots!]
The quotient of each division is the esponent of the element out of the root
The rest of each division is the esponent of the element under the root
so:
(quotient = 1, see the first operation) *
(rest = 1, see the second operation) *
(quotient = 2, see the third operation) *
(rest = 1, see the third operation)
The final result is:
3 (=3^1) * a² * √5 * √a
3a²√5a
It's more intuitive and easy, but the explanation (necessary) is very long. If you have other questions, ask me here in the comments! Also sorry for my english, not so good!