ShmoopTube
Where Monty Python meets your 10th grade teacher.
Search Thousands of Shmoop Videos
Pre-Algebra Videos 217 videos
Haven't you always wondered how much cardboard it takes to encase a trunk warmer for your pet elephant?
Es una cosa cuando todas esas figuras geométricas están puestas en un pie de la página, pero cuando estas empiezan a expanderse y a invader nues...
Does thinking about 3D Geometry get you bent out of shape? Never fear! Watch this video and figure out some fun new shapes to bend back into. We're...
SAT Math 7.2 Algebra and Functions 260 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.
Related Videos
SAT Math 2.1 Geometry and Measurement. What is the measure of angle z in terms of x and y?
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...