Sunday
May 19, 2013

Posts by Mark


Total # Posts: 1105

Chemistry
You will have to find the molar mass here.. 200 ml * 0.1 mol/ L * 1 L/ 1000 mL= 0.02M 250 ml* 0.2M/ L * 1L/ 1000 mL= 0.05M N I somehow feel this problem is incomplete or either I am unable to understand the chemical compound name. Is there anymore to it?

Slope- Derivative
Thank you!

Slope- Derivative
Find the slope of f(t)= sqrt((1-sin (2t)) a) at point (0,1) i got -1 b) at origin i got 1 is this right thanks

Derivative-Word Problem
I read more about related rates, and have now understood these types of problems. Thank you!

Derivative-Already Solved-Please check?
^

Derivative-Word Problem
Volume in liters of antifreeze remaining in a leaking radiator after t minutes is V= 20- 2t- 0.1t^2 a) how long does it take to drain the antifreeze mixture from the radiator? i got t= 10 b) how fast is volume changing when t=5? i got 9.75 is this right. thanks

Word Problem-Calculus
My fault lied in plugging in directly. Thank you for showing me the steps.

Word Problem-Calculus-Already Solved-Please check?
Thank you!

Word Problem-Calculus
A spherical balloon is being inflated in such a way that its radius increases at a rate of 3 cm/min. If the volume of the balloon is 0 at time 0, at what rate is the volume increasing after 5 minutes? my answer is 45 cm/min. is this right. thanks

Cos-Derivative
Thanks!

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