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ACT Mathematics Videos 164 videos
ACT Math: Coordinate Geometry Drill 1, Problem 1. Which inequality is expressed by the number line?
ACT Math: Intermediate Algebra: Drill 3, Problem 1. Find the fifth number in the series.
ACT Math: Pre-Algebra Drill 1.2. What proportion of Jenna's day is spent Wii-swimming?
ACT Math 2.2 Intermediate Algebra 471 Views
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Description:
ACT Math Intermediate Algebra Drill 2, Problem 2. How else can the expression be written?
- Intermediate Algebra / Radical and rational expressions
- Product Type / ACT Math
- Foreign Language / Arabic Subtitled
- Foreign Language / Korean Subtitled
- Foreign Language / Spanish Subtitled
- Foreign Language / Chinese Subtitled
- Number and Quantity / Use properties of rational and irrational numbers
- Number and Quantity / Use properties of rational and irrational numbers
- Intermediate Algebra / Rational, radical, and logarithmic expressions
Transcript
- 00:02
And here is another shmoop de jour.
- 00:04
The square root of 5 plus 1... all over the square root of 5... can also be written as... what?
- 00:12
And here are the potential answers...
- 00:17
Okay. If 5 over 5 is the same as one, isn't the square root of 5 over the square root
- 00:22
of 5... also 1?
Full Transcript
- 00:25
If so, then we have square root of 5 times the quantity square root of 5 plus 1 over
- 00:30
square root of 5 times square root of 5 which is... 5.
- 00:34
When we multiply, we have another square root of 5 times square root of 5 up here... then
- 00:39
1 times square root of 5 is just square root of 5... all over 5.
- 00:42
Answer: B.
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