Answer:
The area of the shaded region is 
Step-by-step explanation:
<u><em>The correct question is</em></u>
A circle with radius of 4cm sits inside a circle with a radius of 11cm. What is the area of the shaded region?
The shaded region is the area outside the smaller circle and inside the larger circle
we know that
To find out the shaded region subtract the area of the smaller circle from the area of the larger circle
so
simplify
where
r_a is the radius of the larger circle
r_b is the radius of the smaller circle
we have
substitute
assume
substitute
The ribbon would be 9 yards long
225 is not a perfect cube
Answer:
The principal, real, root of:
³√225=6.082202
All roots:
6.082202
−3.041101+5.26734144i
−3.041101−5.26734144i
225 is not a perfect cube
Solution: Yes, the random variable y will have a binomial distribution. Because there are two possible outcomes 1. number of days of rain and 2. number of days of no rain.
The parameters of binomial distribution are 
and 
The parameter n is given as the number of day's under consideration.
The parameter p is not given, but it can be estimated by number of days it rained divided by the total number of days under consideration.
Answer:
432 in^3
Step-by-step explanation:
The ratio of linear dimensions is the square root of the ratio of the areas, so is ...
scale factor = √(36/25) = 6/5
The ratio of volumes is the cube of the ratio of linear dimensions, so is ...
volume ratio = (scale factor)^3 = (6/5)^3 = 216/125
Then the volume of the larger figure is ...
larger volume = (250 in^3)·(216/125) = 432 in^3
