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New exercises from Khan Academy 2022-05-17T05:11:56.000000
Updated: 5 hours 52 min ago

Changes in equilibrium

Mon, 2022-05-16 03:04
This exercise practices finding a new equilibrium price and quantity when supply changes, demand changes, or both supply and demand are changing simultaneously.`

Divide whole numbers to get a decimal (1-digit divisors)

Mon, 2022-05-16 02:57
Dividing whole numbers to get a decimal quotient like 15÷6=2.5

Making conclusions about slope

Mon, 2022-05-16 02:48
Make conclusions in a t test for slope based on the p-value and significance level, or from a confidence interval.

Add and subtract fractions word problems (same denominator)

Mon, 2022-05-16 02:00
Practice solving word problems by adding and subtracting fractions. The fractions used in these problems have like (common) denominators.

Interpret two-way tables

Mon, 2022-05-16 01:37
Do you understand how two-way tables really work? Here's your chance to practice. Go get 'em! You got this!

Coordinate plane word problems (quadrant 1)

Sun, 2022-05-15 15:20
See how we can use the axes on the coordinate plane to represent quantities.

Graph data on line plots

Sun, 2022-05-15 15:20
Record measurements on line plots (also called dot plots) using rulers and frequency tables.

Phasor diagrams for pure circuits

Sun, 2022-05-15 09:56
Let's solve some problems where we identify which phasor diagrams correspond to which circuits and vice-versa.

Relating phasors to trigonometric equations

Fri, 2022-05-13 08:20
Let's solve some problems to better understand how phasors represent trigonometric equations with different phases. This brings us a step closer to using phasors to analyze physical quantities that vary sinusoidally.

Plant kingdom

Fri, 2022-05-13 08:11
Overview of plants, alternation of generations

Understand: forces and acceleration

Fri, 2022-05-13 00:09
Check your understanding of forces and acceleration in this set of free practice questions aligned to NGSS standards.

Understand: gravitational forces

Thu, 2022-05-12 18:14
Check your understanding of gravitational forces in this set of free practice questions aligned to NGSS standards.

Determine translations

Wed, 2022-05-11 21:17
Given two figures on the coordinate plane, find the formal definition of the translation that takes one figure to another.

Dilate triangles

Wed, 2022-05-11 20:52
Given a figure and a definition of a dilation, select or manually draw the image.

Pythagorean theorem challenge

Wed, 2022-05-11 20:50
Solve real-world problems that can be modeled by right triangles, using the Pythagorean Theorem!

Trigonometric ratios in right triangles

Wed, 2022-05-11 20:42
Given the side lengths of a right triangle, find the sine, cosine, or tangent of one of the acute angles.

Rigid transformations: preserved properties

Wed, 2022-05-11 12:43
Identify which properties of shapes remain the same after a rigid transformation (reflection, rotation, translation) has been applied.

Find measures using rigid transformations

Wed, 2022-05-11 12:15
Use your knowledge about the effects of rigid transformations to solve problems about figures and their images under transformations.

Dilations: center

Wed, 2022-05-11 09:16
Given a figure and its image under a dilation, determine the dilation's center point.

Classification of fungi

Wed, 2022-05-11 07:11
This exercise tests the understanding of the general principles of the classification of fungi.


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