Express the statement as an equation involving the indicated variables.The surface area S of a sphere is 4 times ? times the square of the radius r.

A. S = 4? 
B. S = 4?r2
C. S = ?r2
D. S = 4?r

Answer: B

Mathematics

You might also like to view...

Provide an appropriate response.Solve for x: y = mx + b

A. x = y - b - m
B. x = 
C. x =  - b
D. x = 

View
Mathematics

Find the volume of the specified solid. Use 3.14 as the approximate value of ?, and round your answer to the nearest tenth.A sphere with diameter 1.1 in.

A. 0.7 in.3  B. 0.4 in.3  C. 5.6 in.3 D. 1.3 in.3 

View
Mathematics

Write a numerical expression for the phrase and simplify it.The product of -9 and 8, added to 9

A. 9 + (-9)(8); -63 B. (-9)(8)(9); -648 C. (9)(-9 + 8); -9 D. (-9 + 9)(8); 0

View
Mathematics

Write the polynomial in descending order and identify its degree.-4z7 + 2z8

A. -2z2 ; degree: 7 B. -4z7 + 2z8 ; degree: 8 C. -2z15 ; degree: -4 D. 2z8 - 4z7 ; degree: 8

View
Mathematics