Answer:
78.5
Step-by-step explanation:
The formula for area of a circle is pir^2
So we have 5 for r, so r^2 would be 25.
Using 3.14 for pi, we get the answer is 78.5
The area of the composite figure = 10,874.1 sq. m.
The perimeter of the composite figure = 406.9 m
<h3>What is the Area and Perimeter of a Rectangle and Circle?</h3>
Perimeter of a rectangle = 2(length + width)
Area of a rectangle = length × width
Perimeter of a circle = 2πr
Area of a circle = πr²
<h3>
What is Area of the
composite figure?</h3>
The figure is made up of two semicircles (1 full circle) and a rectangle.
Area of the composite figure = area of circle + area of rectangle
= πr² + length × width
r = 36.5 + 1.2 = 37.7 m
length = 85.0 m
width = 2(36.5) + 2(1.2) = 75.4 m
Substitute
Area of the composite figure = π(37.7)² + 85.0 × 75.4 = 10,874.1 sq. m.
<h3>
What is Perimeter of the
Composite Figure?</h3>
Perimeter of the composite figure = perimeter of circle + 2(length of the rectangle)
= 2πr + 2(L)
Plug in the values
= 2π(37.7) + 2(85.0)
Perimeter of the composite figure = 406.9 m
Learn more about composite figures on:
brainly.com/question/391747
Answer:
150000.5
Step-by-step explanation:
300000 x 2000000= 600000000000
600000000000 + 2000000= 600002000000
600002000000/ 4000000= 150000.5
Answer is in the photo. I can only upload it to a file hosting service. link below!
tinyurl.com/wtjfavyw
We can rewrite the asked question like this:
wherein X_1 and X_2 are random variable with the same given normal distribution. Then mean of
is zero and the variance
can be computed like this:
So, the random variable
follows a normal distribution
with means 0 and standard deviation 9.6.
The median of the law N(0,9.6) is 0.
So the expected difference of the score is 0.
