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New exercises from Khan Academy 2020-07-10T10:07:15.000000
Atualizado: 5 horas 15 minutos atrás

Identifying carbon reactions

sex, 2020-07-10 10:07
Let's practice identifying the four types of carbon reactions by knowing the chemical properties of carbon.

Inflection points intro

qui, 2020-07-09 19:37
Analyze the points of inflection of a function given the function's graph.

Spectroscopy and the electromagnetic spectrum

qui, 2020-07-09 18:57
Check your understanding of molecular and electronic transitions in this set of free practice questions designed for AP Chemistry students.

Using Le Chatelier's principle

qui, 2020-07-09 18:23
Practice using Le Chatelier's principle to predict what happens to a reaction when a stress is applied

Basic cell structures

qui, 2020-07-09 18:18
Test your knowledge on the structures of cells!

The Progressives

qui, 2020-07-09 18:15
Test your knowledge on the twentieth-century progressive movement!

Word problems: Solving quadratic equations

qui, 2020-07-09 16:37
Let's solve some word problems involving quadratic equations.

Concavity intro

qui, 2020-07-09 00:47
Practice your understanding of concavity.

Finding definite integrals using algebraic properties

qua, 2020-07-08 20:59
Properties of integrals practice problems

Definite integrals over adjacent intervals

qua, 2020-07-08 15:53
Practice your understanding of definite integral properties: integrating sums of functions, and taking the integral of a function multiplied by a constant.

Equal groups

qua, 2020-07-08 14:48

Simplify square-root expressions

qua, 2020-07-08 12:47
Practice simplifying expressions with multiple radical terms.

Connecting f, f', and f'' graphically

qua, 2020-07-08 12:42
Identify which of three given graphs describes a function, which describes the function's first derivative, and which describes the function's second derivative.

General triangle word problems

qua, 2020-07-08 01:46
Solve word problems that involve general triangles using trigonometry.

Estimate derivatives

ter, 2020-07-07 21:31
Given a table of values of a function, find the best estimate for the derivative of a function at a given point.

Secant lines & average rate of change

ter, 2020-07-07 21:19
Find the average rate of change of a function, or the slope of a secant line to the graph of the function.


ter, 2020-07-07 18:54
Test your knowledge.

Break apart 2-digit addition problems

ter, 2020-07-07 18:28
Practice breaking apart problems like 23+45 into problems like 20+40+3+5.

Place value blocks within 1,000

ter, 2020-07-07 18:01
Practice using place value blocks to represent numbers within 1000.

Unit rates

ter, 2020-07-07 17:29
Find the unit rate for two quantities. For example, if you spend 70 dollars on 8 movie tickets, how much does one movie ticket cost?


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