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New exercises from Khan Academy 2019-10-18T20:18:33.784747
Actualizado: hace 36 mins 39 segs


Lun, 2019-09-16 01:53
Test your knowledge of enzymes!

Absolute minima & maxima (closed intervals)

Vie, 2019-09-13 17:15
Find absolute minimum/maximum points of continuous functions over closed intervals.

Interpreting graphs of functions

Vie, 2019-09-13 16:35
Interpret the graphs of both linear and nonlinear functions.

Increasing/decreasing intervals & extremum points challenge

Vie, 2019-09-13 16:32
Review your understanding of minimum and maximum points with some challenge problems.

Area between a curve and the x-axis

Vie, 2019-09-13 16:27
Area between curve and axis practice problems. 

Order decimals

Jue, 2019-09-12 17:48
Order 3 decimals with digits up to the thousandths from least to greatest.

Reciprocal trig ratios

Jue, 2019-09-12 04:38
Understand the right triangle definition of sec, csc, and cot ratios.

Philosophical foundations of the American Revolution

Mié, 2019-09-11 21:28
Practice your skills in this quiz on the philosophical movements that inspired colonial resistance to the British monarchy

Seven Years' War

Mié, 2019-09-11 21:04
Practice your historical skills with questions on the Seven Year's War. 


Mié, 2019-09-11 17:54
Practice what you have learned about the sources of monopolies and how a monopolist makes quantity and pricing decisions in this exercise.

Conduction and non conduction of electricity

Mié, 2019-09-11 09:03
Let's practice identifying substance conducting and not conducting electricity by giving reasons for the same.

Perfect squares

Mié, 2019-09-11 04:26
Factor quadratic expressions of the general perfect square forms: (ax)²+2abx+b² or (ax)²-2abx+b². The factored expressions have the general forms (ax+b)² or (ax-b)².

Decimal place value with regrouping

Lun, 2019-09-09 17:25
Practice your decimal place value understanding by using place value to describe decimal numbers.

Math patterns

Lun, 2019-09-09 17:22
Identify arithmetic patterns (including ones in the addition or multiplication tables), and explain them using properties of operations.

Validating HTML

Lun, 2019-09-09 17:18
Try validating small HTML pages and figure out what's wrong.

Exponential expressions word problems (numerical)

Lun, 2019-09-09 17:07
Write exponential expressions that describe a quantity in a real-world context.

Absolute value to find distance

Sáb, 2019-09-07 22:53
Practice taking the absolute value of the difference of two numbers to find the distance between those numbers. Apply this principle to solve word problems.

Mendelian genetics

Sáb, 2019-09-07 03:30
Test your knowledge on Mendelian genetics!

Calculating percentiles

Vie, 2019-09-06 23:42
Practice working with percentiles.

Making conclusions about the difference of means

Vie, 2019-09-06 21:18
Practice using test statistics, P-values, and confidence intervals to make conclusions in a two-sample test for the difference of means.