To calculate volume of cylinder is used the formula v=pi.(r^2).h where h is height now just do a simple equation. 15.7= 2pi.h since r^2 is diameter then 2pih= 15.7 then pass 2pi dividing and we get h = 15.7/2pi that gives approximately 2.49cm
Step-by-step explanation:
tan(2x) = sin(2x)/cos(2x) = 2sinxcosx/(cos^2x - sin^2x).
Dividing the num- and denominator by sinxcosx, we get
2/(cosx/sinx - sinx/cosx) = 2/(cotx - tanx)
cotA + cotB = cosA/sinA + cosB/sinB
We just add them like fractions, with a common denominator of sinAsinB
(cosAsinB + sinAcosB)/sinAsinB
Note that sinAcosB + sinBcosA = sin(A+B)
Therefore we have
sin(A+B)/sinAsinB
If it costs 650 per kg then 500g will cost half of that as 500g is half of a kg so the answer is 650/2 = 325
One such direct proportion would be y = (2/3)x. Note that (2/3)(15) = 10, as expected and desired.
The equation that represents the statement is y = 10 - x
<h3>How to determine the equation?</h3>
The statement is given as:
x-coordinate plus the y-coordinate always equals 10
Rewrite as:
x-coordinate + the y-coordinate = 10
Further, rewrite as:
x + y = 10
Make y the subject
y = 10 - x
Hence, the equation is y = 10 - x
Read more about linear equations at:
brainly.com/question/14323743
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