What is the difference of the polynomials?
(m^2n^2-7) - (mn+4)
a. mn – 11
b. mn + 3
c. m^2n^2-mn-11
d. m^2n^2-mn-3

Difference (m²n²- mn - 11)  ( C).

Step-by-step explanation:

Given : (m²n²-7) - (mn+4) .

To find  : Difference .

Solution : We have  (m²n²-7) - (mn+4) .

Removing second parenthesis

(m²n²-7) - mn - 4) .

Now, combine  like terms

(m²n²- mn - 4 - 7) .

(m²n²- mn - 11) .

Therefore, Difference (m²n²- mn - 11)  ( C).

circle area = pi * radius^2

if diameter = 10 then radius = 5

circle area = pi * 5^2

circle area = pi * 25

circle area = 78.5398163397 square units

step-by-step explanation: