The area a equals pi R squared of a circular water ripple changes with the radius. At what rate does the area change with respect to the radius when r equals 4

πr2

Step-by-step explanation:

πr4

300

step-by-step explanation:

28-600w < 300

28-600w > 300

600-28w < 300

600-28w > 300

for this case we must apply distributive property to the following expression:

the distributive property states that:

then, when applying the property we have to multiply the -2 for each term within the parenthesis: