GET NAMED BRAINLIEST AND ANSWER THE RIGHT ANSWER AND GET A THANKS AND GET 30 POINTS
1.

Given a circle with a circumference of 10cm, which equation shows how the relationship between a circumference and its diameter can be used to find π

?
Question 1 options:

a. π=1/10d

b. π=d/10

c. π = 10d

d. π=10/d

2. The radius of a circle is 15. Using π

, which equation expresses the ratio of the circumference to the diameter of a circle?
Question 2 options:

a. C=15π/r

b. C/15=π

c. C=/r30π

d. C/30=π

#i. π = 10/d

#ii. C/30=π

Step-by-step explanation:

#a. We are given;

We are required to show how the relationship between the circumference  and the diameter can be used to find π.

we know that the circumference of a circle is given by;

Circumference = πd

But, circumference is 10 cm

Therefore;

10 cm = πd

Dividing both sides by d, then;

π = 10/d

#b. we are given;

We are given;

Radius of a circle = 15

We are supposed to express the ratio of circumference to the diameter;

We need to know that;

Diameter = 2 × radius

                = 2r

Circumference = πd or

                         = 2πr

Therefore, the ratio of circumference to the diameter will be;

C=2πr

d=2r

C/d = π

  But d =30

Thus; C/30 =π

there are 70 more legs than eyes at the dog show (196 – 126 = 70). dogs have two more legs than eyes, and humans have the same number of legs as eyes. thus 70 is twice the number of dogs at the show, so the number of dogs is half of 70, which is 35. to get the number of humans, subtract 35 from 63: 63 – 35 = 28.

step-by-step explanation: