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New exercises from Khan Academy 2019-11-13T05:51:17.114146
Mis à jour : il y a 51 min 4 sec

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

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

Solve quadratic equations: complex solutions

dim, 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

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

Planar motion (differential calc)

jeu, 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.

Challenges of the 21st century

lun, 2019-11-04 22:18
Test your skills on the domestic and international challenges of the 21st century!

A changing economy

lun, 2019-11-04 22:03
Test your skills on the economic and technological changes of period 9!

Conditional repetition of instructions

dim, 2019-11-03 23:18
Practice using iteration in computer programs to repeat code until a boolean expression is true for programs written in the AP CSP pseudocode, in this set of free practice questions designed for AP Computer Science Principles students.


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