The area of the largest cross section of a sphere and the circumference of the sphere are in the ratio 4:1. The radius of the sphere is ___cm. The circumference of the sphere is about ___cm. The area of the largest cross section is about cm. The volume of the sphere is about ___cm​

Step-by-step explanation:

The largest cross-section of a sphere is the center.

So, we have:

Where

Solving (a): The radius

implies that

Express as fraction

Divide by

Make r the subject

Solving (b): Area of the largest cross-section.

Solving (b): Volume of the sphere

answer

a the answer hopes this

step-by-step explanation:

walter needs to make at least 5 more cookies but no more than 40. 5 ≤ x ≤ 40

step-by-step explanation:

20 ≤ x + 15 ≤ 55

subtract 15 from all parts

20-15 ≤ x + 15-15 ≤ 55-15

5 ≤ x ≤ 40

this means how many more cookies he has to make

walter needs to make at least 5 more cookies, but no more than 40 cookies; 5 ≤ x ≤ 40