Algebra, List 3

December 1, 2022
Review these terms and concepts related to algebra that may be tested on the Quantitative Reasoning section of the GRE test.
absolute value
We use the absolute value symbol to indicate that the length is a positive number because the absolute value of any number is positive.
Also, there is still one of the original problems that Hubble was designed to help solve, which is determining how fast the universe is expanding—something called the Hubble constant.
A sudden conversion of a large amount of cryptocurrency can also be dangerous, causing the price of the coin to collapse as it’s turned into dollars.
When a finite sequence is defined by a formula, its domain is a subset of the non-negative integers.
The curve of growth can be plotted as an exponential line—1, 2-, 4-, 8-, 16-fold growth—until the culture turns turbid, and the sugar source has been exhausted.
We will take a look at a few applications here so you can see how equations written in slope– intercept form describe real world situations.
There is a curious inverse relationship in modern physics between the tininess of the thing being sought and the scale of facilities required to do the searching.
The logarithm of a number is simply the power to which 10 must be raised to equal the number in question.
Blue Team had their databases and matrixes and methodologies for systematically understanding the intentions and capabilities of the enemy.
Her solution, artistic rather than mathematical, is to divide a square into four quadrants with curving figures within.
Since squaring a quantity and taking a square root are ‘opposite’ operations, we will square both sides in order to remove the radical sign and solve for the variable inside.
It is possible to calculate implied volatility over a two-year period, creating a slope akin to the yield curve, which measures interest rates for different lending durations.
If you performed such a “parity” transformation on a clock, for example, the weird mirror-image clock that would result would tick just like the original one.
She worked through every minute of what was programmed to be a three-orbit mission, coming up with numbers for eleven different output variables, each computed to eight significant digits.
Spin is a vector with a direction as well as a magnitude, and it is often represented by an arrow, ↑ or ↓, for example.

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