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# KhanAcademyExercises

New exercises from Khan Academy 2020-02-13T23:33:11.382060
Actualizado: hace 2 horas 33 mins

### Determine reflections (advanced)

Jue, 2019-12-19 15:15
Given two figures on the coordinate plane, draw the line of reflection that takes one figure to another.

### Reflect shapes

Jue, 2019-12-19 15:13
Given a figure and a definition of a reflection, manually draw the image.

### Find measures using rigid transformations

Jue, 2019-12-19 15:11
Use your knowledge about the effects of rigid transformations to solve problems about figures and their images under transformations.

### Dilations: center

Jue, 2019-12-19 15:07
Given a figure and its image under a dilation, determine the dilation's center point.

### The environment and natural resources from 1968 to 1980

Mar, 2019-12-10 22:09
Test your skills on the major environmental policies and movements of the 1970s!

### Telling time word problems (within the hour)

Mar, 2019-12-10 21:26
Solve a word problem to find the duration of an event.  Both analog or digital clocks are included.

### Politics in the Gilded Age

Mar, 2019-12-10 16:21
Practice your skills in this exercise on politics in the Gilded Age.

### Price Elasticity of Supply and its Determinants

Lun, 2019-12-09 17:32
Practice wha you've learned about price elasticity of supply and the determinants of price elasticity of supply in this exercise.

### Identifying centripetal forces

Lun, 2019-12-09 00:16
Identify the force or force components causing circular motion in different scenarios.

### Calculating work from force vs. position graphs

Vie, 2019-12-06 18:46
Practice calculating the work done by a force from  a force vs. position graph.

### Represent rectangle measurements

Vie, 2019-12-06 18:43
Identify length, width, area, and perimeter on rectangles.  And identify equations that will help find unknown rectangle measures, like area and perimeter.

### Convex and concave lenses

Vie, 2019-12-06 13:46
Let's practice problems involving both the lens and magnification formulas in convex and concave lenses.

### Price Elasticity of Demand and its Determinants

Vie, 2019-12-06 00:20
Practice what you've learned about calculating and interpreting price elasticity of demand, as well as the determinants of price elasticity of demand, in this exercise.

### Random numbers

Jue, 2019-12-05 04:22
Practice using random numbers for programs written in the AP CSP pseudocode, in this set of free practice questions designed for AP Computer Science Principles students.

### Controversies over the role of government in the Gilded Age

Mié, 2019-12-04 17:50
Practice your skills in this exercise on controversies over the role of government in the Gilded Age.

### Determinants of price elasticity and the total revenue rule

Mié, 2019-12-04 17:50
Practice what you've learned about the relationship between price elasticity of demand and total revenue in this exercise.

### Reform in the Gilded Age

Mié, 2019-12-04 17:33
Practice your skills in this exercise on reform in the Gilded Age.

### Interquartile range (IQR)

Mar, 2019-12-03 23:23
Practice finding the interquartile range (IQR) of a data set.

### Development of the middle class

Mar, 2019-12-03 16:30
Practice your skills in this exercise on the development of the middle class.

### Making conclusions in chi-square tests for two-way tables

Mar, 2019-12-03 16:21
Make conclusions in a chi-square test for independence or homogeneity based on the p-value and significance level.