Circle q has a circumference of approximately 50 centimeters.
what is the approximate length of the diameter, d? use 3.14 for π. round to the nearest tenth of a centimeter.

Circumference of any circle can be calculated by the formula C= 2πR

Where r is radius of the circle and π = 3.14.

The circumference of the circle is given as 50 centimeters.

  Substituting the values :

50 = 2(3.14)R

50= 6.28 R

Dividing both sides by 6.28

R=7.96

Diameter d = 2R

Diameter =2(7.96)

d= 15.9 cm.

a is 8.b is 10.c is 10.5. d is -.5

step-by-step explanation:

just minus the smallest number from the biggest.

proportions are fractions that equal to each other. so if two fractions are the same, they are proportional.

let's check the answers to see if they are proportional.

question a is not proportional because you can't turn 1.5/3 to 3/9. if you try to multiply 1.5/3 by 2 or 3, you wont get 3/9. it's impossible to make the fractions the same.

question b is not proportional because you can't turn 22/33 to 4/6. 33 can't go into 6.

question c is proportional because when you multiply 2 and 3 by 71, you would get 142/213, and those fractions equal to each other

question d is proportional because when you divide 14 and 7 by 2, you would end up with 7/3.5, and those fractions equal to each other.