ShmoopTube
Where Monty Python meets your 10th grade teacher.
Search Thousands of Shmoop Videos
SAT Math 7.2 Algebra and Functions 206 Views
Share It!
Description:
SAT Math 7.2 Algebra and Functions
Transcript
- 00:02
Put this in your calculator and shmoop it...
- 00:05
If 1.5 times 10 to the fourth all to the x power equals 1,
- 00:09
then x must be which of the following?
- 00:11
And here are the potential answers...
- 00:15
So... even though we have a ton of parentheses and numbers here,
Full Transcript
- 00:18
this is really a pretty simple question.
- 00:21
Ignore the numbers inside the parentheses for now.
- 00:27
Instead, let's ask ourselves this question:
- 00:29
When do we ever deal with exponents and have the result be... 1?
- 00:34
The answer?
- 00:35
ANY number to the ZERO power gives a result of 1.
- 00:39
Really...any number. Even 1 billion to the zero power gives a result of 1.
- 00:44
So x must be equal to 0.
- 00:47
Which means that our answer is C.
Up Next
SAT Math 2.1 Geometry and Measurement. What is the measure of angle z in terms of x and y?
Related Videos
In 2014, the unemployment rate of one county in California was 7%. In another county, the unemployment rate was 11%. Which of the following express...
Angela is making cookies for a bake sale. She expects each batch of her cookies to sell for $40. It costs her $10 to make one batch of cookies, and...