Answer:
1.) Circumference of circle A = 131.95 metre
2.) Circumference of circle B = 175.93 metre
3.) Yes. Radius is proportional to the circumference.
Step-by-step explanation: Given that Circle A has a radius of 21 meters and Circle B has a radius of 28 meters
Circumference of a circle = 2πr
For circle A
Radius r = 21
Circumference = 2 × 3.143 × 21
Circumference = 131.95 metre
For circle B
Circumference = 2 × 3.143 × 28
Circumference = 175.93 metre
Is the relationship between the radius of a circle and the distance around the circle the same for all circles? YES
Because the radius of the circle is proportional to the distance around them ( circumference ) for all the circle. That is, the larger the radius, the larger the circumference
Answer: yes, you are correct; at least that's what my teacher says.
Step-by-step explanation:
Probability = possible chances
Total chances.
The sector area created by the hands of a clock with a radius of 9 inches when the time is 4:00 is 27π square inches. Then the correct option is C.
<h3>What is a circle?</h3>
It is a locus of a point drawn at an equidistant from the center. The distance from the center to the circumference is called the radius of the circle.
The sector area is created by the hands of a clock with a radius of 9 inches when the time is 4:00.
Then the radius (r) is 9 inches and the angle is 120°.
We know that the area of the sector is given by

The sector area created by the hands of a clock with a radius of 9 inches when the time is 4:00 is 27π square inches. Then the correct option is C.
More about the circle link is given below.
brainly.com/question/11833983
Let's solve for x.
-5x+y= -2
step 1: add -y to both sides.
-5x + y -y = -2 + -y
-5x = -y -2
step 2: divide both sides by -5
-5x/-5 = -y-2/-5
answer:
x= 1/5 y+ 2/5