Mathematics
27.12.2020 21:57
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Monica s Money Monica believes she has the best part time job. She babysit s for
Monica s Money Monica believes she has the best part time job. She babysit's for her neighbor. They pay her $20 for walking the kids home from school and then $10 each hour. what is the slope?
please help me.
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sunshine0613
4,4(62 marks)
Step-by-step explanation:
Area of the circle = 1400π
ie. πr^2 = 1400π . ie r^2 =1400. So r=10√14
Area A = πr^2.Differentiate w.r.t.t
dA/dt = 2πr. dr/dt
900 = 2×π×10√14 .dr/dt
So. dr/dt = 900/2×π×10√14 = 45/π√14 m/sec.
Hope this answer helps you :)
Have a great day
Mark brainliest
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