LIVE Course for free

Rated by 1 million+ students
Get app now
0 votes
in Mathematics by (5.8k points)

The length x, of a rectangle is decreasing at the rate of 5 cm/minute and the width y, is increasing at the rate of 4 cm/minute. When x = 8 cm and y = 6 cm, find the rate of change of the area of the rectangle.

1 Answer

+1 vote
by (34.7k points)
selected by
Best answer


dx/dt = -5 cm/m,

dy/dt = 4 cm/m

A = x * y

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.