Ok, so if the angle is 120 degrees, its one third of the full cake (which is 360 degrees). So the area of the whole circle (worked out with area = pi * r^2 where r is 30) gives 900*pi, and so one third of that (because her slice is one third) is 300pi.
Use the pythagorean therom. 12 squared + 3 squared = x squared
So the answer is 12.4 feet
Answer:
Under 99% confidence level we can say that mean speed of the new chips is greater than that of the old chips
Step-by-step explanation:
: Mean speed of the new chip is the same as the old chip
: Mean speed of the new chip is greater than the old chip
to calculate the z-statistic we can use the formula:
z=
if we put the numbers then
z=
=4.8171
The probability of this z-statistic is < 0.001 Therefore Under 99% confidence level we can say that mean speed of the new chips is greater than that of the old chips
Answer:
36
Step-by-step explanation:
36 is greater than 3.6
Answer:
r = 3
Step-by-step explanation:
q = k / 
k = q
= 1.2 x 3 x 3 = 10.8
q = 10.8/
1.2 = 10.8/
r =
= 3