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New exercises from Khan Academy 2021-07-25T16:04:56.000000
Atualizado: 1 hora 6 minutos atrás

### Multi-step linear inequalities

seg, 2021-06-28 21:41
Solve linear inequalities that take multiple steps to solve.

### Linear vs. exponential growth: from data

seg, 2021-06-28 21:40
Given a table with values of two quantities over time, determine whether the quantities form grow linearly or exponentially.

### Prime factorization

seg, 2021-06-28 21:31

### Identifying weak bases and strong bases

seg, 2021-06-28 16:29
Practice identifying weak bases and strong bases

### Equations with parentheses

seg, 2021-06-28 16:27
Practice solving equations with parentheses using the distributive property.

### Identifying weak acids and strong acids

seg, 2021-06-28 16:23
Practice identifying weak acids and strong acids

### Converting recursive & explicit forms of arithmetic sequences

seg, 2021-06-28 16:22
Given the explicit formula of an arithmetic sequence, find its recursive formula, and vice versa.

### Understand equivalent ratios in the real world

seg, 2021-06-28 09:30
This exercise builds an understanding of what it means for ratios to be equivalent or not be equivalent.

### Understand: Newton’s law of universal gravitation

seg, 2021-06-28 09:22
Check your understanding of Newton's law of universal gravitation in this set of free practice questions aligned to NGSS standards.

### Formulas and units

seg, 2021-06-28 09:10
Use various formulas to solve real world problems while attending to the units of the quantities that make up the formulas.

### Cells in series and parallel

seg, 2021-06-28 08:45
Let's practice some problems to get better at solving circuits with multiple cells in series or parallel combinations.

### Cells: emf and internal resistance

seg, 2021-06-28 08:41
Let's practice some problems to better understand how the internal resistance of a cell influences the terminal voltage and the current that can be drawn from it.

### Predict changes in drift velocity

seg, 2021-06-28 04:11
Drift velocity of electrons in a current is related to several factors. Let's practice some problems to better understand how it's affected by changes in those factors.

### Temperature dependence of resistivity

seg, 2021-06-28 03:57
Let's practice some problems to better understand how the resistivity of a conductor varies with small changes in temperature.

### Use Pythagorean theorem to find right triangle side lengths

seg, 2021-06-28 02:02
Find the length of the hypotenuse or a leg of a right triangle using the Pythagorean theorem.

### Defining transformations

seg, 2021-06-28 02:00
Refine definitions of rigid transformations. Given a description of the effect of a transformation, determine which rigid transformation it is.

### Division with groups of objects

seg, 2021-06-28 02:00
Use visual models to understand division.

### Write numbers in number and word form

seg, 2021-06-28 02:00
Write numbers in number and word form within 1000.

### Convert units multi-step word problems (US customary)

seg, 2021-06-28 02:00
Solve word problems that involve converting between US customary measures of distance, volume, and mass.

### Web protocols

dom, 2021-06-27 20:56
Check your understanding of the World Wide Web and HTTP in this set of free practice questions designed for AP Computer Science Principles students.