Volume of a cylindrical can = pi r^2 h
We are given that h = 4r , so substituting for h in the above formula:-
Volume = pi * r^2 * 4r = 4pir^3 <---- the answer to Part a.
h = 4r so r = h/4
Substituting for r:-
Volume = pi * (h/4)^2 * h = pi h^3/16 <------- Answer to part b.
Adjecent basically means "next to" and perpindicular is meeting at an right angle (90 degrees) so squares have them and right angle triangles do to.
;
2 × 5 × sin( π / 12 ) = 10 × sin ( π / 12 ) ;
π/12 = ( 180° ) / 12 = 15°.
<span>
But, sin ( π/12 ) </span>
<span>= sin 15° </span>
<span>= sin ( 45° - 30°) </span>
<span>= sin 45°· cos 30° - cos 45°· sin 30° </span>
<span>= (1/√2)·(√3 /2 ) - (1/√2)·(1/2) </span>
<span>= ( √3 - 1 ) / (2√2) = </span>

;
Finally, ( 2.5 ) × ( 2.4 - 1.4 ) = 2.5 cm ;
Answer:
=−2r3+4r2
Step-by-step explanation:
r2−2r3+3r2
=r2+−2r3+3r2
=r2+−2r3+3r2
=(−2r3)+(r2+3r2)
=−2r3+4r2
Hello, and thank you for posting your question here on brainly.
When you solve the equation x = y^2 + 1, you get this line.
(photo)
The line graphed takes both quadrants
I & IV, or 1 & 4.
Hope this helps! ☺♥