If <em>y</em> = cos(√<em>x</em>), then by the chain rule
d<em>y</em>/d<em>x</em> = d/d<em>x</em> [cos(√<em>x</em>)]
d<em>y</em>/d<em>x</em> = - sin(√<em>x</em>) d/d<em>x</em> [√<em>x</em>]
d<em>y</em>/d<em>x</em> = - sin(√<em>x</em>) (1 / (2√<em>x</em>))
d<em>y</em>/d<em>x</em> = - 1/2 sin(√<em>x</em>) / √<em>x</em>
3.

the volume equation for cylinder

5. diameter =half of radius
To find the total snow fall you would multiply the amount of snow per hour by the number of hours it snows:
Total = 3/4 inch per hour x hours: Total = 3/4h
h = 12 hours:
Total = 3/4(12) = 9 inches total.
If it is a 90 degree angle. Strait up and strait flat. Picture the corner of a perfect square. Hope this helps! :)
Answer:
$39.1 in tax
Step-by-step explanation:
Well if the ring is $391, you multiply 10%, or .1, and you get $39.1 in tax.
edit: if rounded to nearest dollar, then its just $39