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Question 9

The radius r of a circular disc is increasing at the rate of 0.5cm/sec. At whate rate is the area of the disc increasing when its radius is 6cm?

  • A.36π cm²/sec
  • B.18π cm²/sec
  • C.6π cm²/sec
  • D.3π cm²/sec
Objective

Question details

Exam body
FUTO
Subject
Mathematics
Year
2018/2019 - Model 1
Question no.
#9
Type
Objective
Previous · Q8Find the equation of the perpendicular at point (4, 3) to the line y + 2x = 5. Next · Q10 The maximum value of the function f(x) = 2 + x - x² is

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