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Math II Videos 98 videos
This video covers both independent and dependent events, although we much prefer independent events. Dependent events are just so dang clingy.
Disjoint events are events that cannot happen at the same time. If one happens, the other doesn't. Simple as that. Overlapping events, on the other...
SAT Math 1.1 Numbers and Operations. How many combinations of beverage and cereal can be made?
ACT Math 5.4 Intermediate Algebra 790 Views
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Description:
ACT Math: Intermediate Algebra: Drill 5, Problem 4. Which expression is equivalent?
- Intermediate Algebra / Logarithms
- Product Type / ACT Math
- Foreign Language / Arabic Subtitled
- Foreign Language / Korean Subtitled
- Foreign Language / Chinese Subtitled
- Foreign Language / Spanish Subtitled
- Algebra / Write expressions in equivalent forms to solve problems
- Algebra / Write expressions in equivalent forms to solve problems
- Algebra / Write expressions in equivalent forms to solve problems
- Intermediate Algebra / Rational, radical, and logarithmic expressions
Transcript
- 00:02
Try this shmoopy question on for size.
- 00:05
Which expression is equivalent to x cubed equals 48?
- 00:08
And here are the potential answers...
- 00:12
OKay, The most important part of this problem is understanding the relationship between logarithms
- 00:17
and exponents.
Full Transcript
- 00:21
If a to the b power equals x, then log base a of x...equals...b.
- 00:31
In this case, the base of the exponent is x, so the base of the logarithm must be x.
- 00:38
That leaves us with C or D. The exponent is 3...so we know the answer must be C.
- 00:42
Answer D would only be correct if we had x to the 48th power equals 3.
- 00:47
But we don't have that. So the answer is C
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