JK

James Krzeminski

Numerade Educator
Teacher

Biography

High school math teacher of 23 years.
AP Calculus BC and AB teacher.
Reader for AP Calculus AB exams.

Education

James has not yet added their education credentials.

Educator Statistics

Numerade tutor for 4 years
34 Students Helped

Topics Covered

Integration
Mastering Integration Techniques for Optimal Results

James's Textbook Answer Videos

1

James's Quick Ask Videos

01:40
Calculus 1 / AB

A spherical party balloon is being inflated with helium pumped in at a rate of 10 cubic feet per minute. How fast is the radius growing at the instant when the radius has reached 3 ft? (The volume of a sphere of radius r is V = 4/3 * π * r^3. Round your answer to two decimal places.) ft/min
00:45
Calculus 3

SDM sells eggs at $2.80 per dozen. How many eggs can be bought for $2.10?
01:02
Calculus 1 / AB

Differentiate the function and find the slope of the tangent
line at the given value of the independent variable. s=t^3-t^2,
t=1
02:10
Calculus 1 / AB

Air is leaking out of a spherical balloon at a rate of 5 cm^3/min. How fast is the radius of the balloon changing when the diameter of the balloon is 20 cm?
02:25
Calculus 1 / AB

Determine the extreme values of f (x) = 3x4 - 4x3 - 36x2 + 20 at [- 1, 3]
02:30
Calculus 1 / AB

Find the derivative of the equation x^2 - 2xy + y^2 - 6x + 2y =
0
Show complete solution and choose from the choices below:
(x – y - 3)/(x – y - 2)
(x – y + 3)/(x – y + 1)
(x – y - 3)/(x – y - 1)
(x + y - 3)/(x – y - 1)
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