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New exercises from Khan Academy 2019-11-14T20:42:29.266846
Aggiornato: 55 min 14 sec fa

Hypertext Transfer Protocol (HTTP)

Gio, 2019-11-14 20:42
Check your understanding of HTTP requests and responses, in this set of free practice questions designed for AP Computer Science Principles students.

Expected counts in chi-squared tests with two-way tables

Gio, 2019-11-14 19:01
Practice calculating expected counts for a chi-square test for independence or homogeneity using a two-way table.

Intermediate Circulatory System Quiz

Gio, 2019-11-14 18:27
Intermediate Circulatory System Quiz

Kinematic equations: numerical calculations

Mer, 2019-11-13 05:51
Practice calculating acceleration, velocity, displacement, and time from word problems using kinematic equations

Write decimals and fractions shown on grids

Mar, 2019-11-12 23:15
Practice these problems to see how decimals and fractions can represent the same number.

Construct exponential models

Mar, 2019-11-12 20:25
Given a verbal description of the rate of change of a real world situation, find the exponential function that models it.

Changes in equilibrium

Mar, 2019-11-12 18:39
This exercise practices finding a new equilibrium price and quantity when supply changes, demand changes, or both supply and demand are changing simultaneously.`

Rational number word problems

Mar, 2019-11-12 17:58
Practice solving multi-step word problems. The numbers in these problems may be fractions, decimals, and percents.

Systems of equations with elimination challenge

Lun, 2019-11-11 23:04
Solve systems of equation with multi-step elimination (e.g., a manipulation is needed in order for x-values or y-values to cancel each other out).

Explicit formulas for geometric sequences

Lun, 2019-11-11 19:23
Solve problems such as: The first four terms in a geometric sequence are 1/3, 1, 3, and 9. Find an explicit formula for the sequence.

Multiply & divide rational expressions

Dom, 2019-11-10 10:42
Example: Multiply and simplify (a²-4)/(a²-1) X (a+1)/(a+2).

Solve quadratic equations: complex solutions

Dom, 2019-11-10 10:40
Solve quadratic equations using the quadratic formula. Some of the equations have real solutions while others have complex solutions.

Describing trends in scatter plots

Ven, 2019-11-08 21:15
Practice making sense of trends in scatter plots. That is, explain what trends mean in terms of real-world quantities.

Advanced respiratory system quiz

Ven, 2019-11-08 21:01
Advanced Lung Quiz

Describing two-dimensional motion with vectors

Ven, 2019-11-08 06:53
Practice representing two-dimensional motion with vectors from word problems.

Figuring out new words 5

Gio, 2019-11-07 23:57
Figuring out new words - 5th grade

Planar motion (differential calc)

Gio, 2019-11-07 18:06
Solve problems involving motion within a plane using differential calculus.

Writing proportions

Mar, 2019-11-05 23:27
Practice writing proportions to describe real-world situations.

Details that support the central message 3

Mar, 2019-11-05 14:08
details that support the central message - 3rd grade

The rise of industrial capitalism

Lun, 2019-11-04 22:32
Practice your skills in this exercise on the rise of industrial capitalism.


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