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New exercises from Khan Academy 2018-10-22T12:21:09.371804
Actualizado: hace 2 horas 6 mins

### Round decimals word problems

Hace 0 seg
Solve word problems by rounding decimals

### Calculating frequency and wavelength from displacement graphs

Hace 0 seg
Practice using a displacement graph and wave speed to find the frequency and wavelength of a wave.

Hace 0 seg
Practice your skills with a quiz on syncretism and the Silk Road!

### Fighting infection with adaptive immunity

Hace 0 seg
Immune System - Passage 1

### Early Christian Art (quiz)

Dom, 2018-10-21 16:58

### Telling time word problems

Jue, 2018-10-18 23:41
Solve a word problem to find the duration of an event. Both analog or digital clocks are included. Time in the word problems crosses over the hour.

### Angled launch projectile vectors

Mié, 2018-10-17 15:48
Practice predicting how a projectile's velocity and acceleration components change throughout the trajectory.

### Interpret two-step equation word problems

Mar, 2018-10-16 19:44
Determine what terms and variables in two-step equations represent in a real-world context.

### Codons and mutations

Lun, 2018-10-15 23:42
Test your knowledge of the different kinds of mutations!

### Find missing length when given area of a parallelogram

Lun, 2018-10-15 18:21
Find the base or height of a parallelogram when given the other and the area.

### Conclusions in a goodness-of-fit test

Lun, 2018-10-15 18:06
Make conclusions in a chi-square goodness-of-fit test based on the p-value and significance level.

### Tell time to hour or half hour

Lun, 2018-10-15 17:52
Practice telling time on analog clocks to the hour or half hour.

### Using CSS text properties

Lun, 2018-10-15 17:50
Practice your knowledge of CSS text properties.

### Mesopotamia

Lun, 2018-10-15 17:40
Test your knowledge of ancient Mesopotamian civilization!

### Circumference and rotations

Lun, 2018-10-15 03:32
Determine distance or number of rotations when given circumference, radius, or diameter of a circle.

### Forces at an angle

Lun, 2018-10-15 03:19
Practice applying angled forces  to an object to find acceleration, normal force, net force, and mass.

### Key concepts: The origins of Islam

Lun, 2018-10-15 03:03
Test your knowledge of the origins of Islam!

### Calculating conditional probability

Lun, 2018-10-15 02:50
Practice calculating conditional probability, that is, the probability that one event occurs given that another event has also occurred.

### Making appropriate scatter plots

Vie, 2018-10-12 18:20
An appropriate scatter plot has the independent variable on the x-axis and the dependent variable on the y-axis. Also, the scale of both axes should be reasonable, making the data as easy to read as possible. In these practice problems, we practice telling good scatter plots from bad ones.

### Transcription and translation

Jue, 2018-10-11 21:30
Test your knowledge of protein synthesis!