The GRE Quantitative Reasoning Test: Algebra, List 3

We use the absolute value symbol to indicate that the length is a positive number because the absolute value of any number is positive. College Algebra with Corequisite Support

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. Scientific American (Apr 27, 2020)

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. New York Times (Feb 7, 2022)

When a finite sequence is defined by a formula, its domain is a subset of the non-negative integers. College Algebra

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. The Gene

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. College Algebra with Corequisite Support

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. A Short History of Nearly Everything

The logarithm of a number is simply the power to which 10 must be raised to equal the number in question. Innumeracy: Mathematical Illiteracy and Its Consequences

Blue Team had their databases and matrixes and methodologies for systematically understanding the intentions and capabilities of the enemy. Blink

Her solution, artistic rather than mathematical, is to divide a square into four quadrants with curving figures within. Washington Post (May 24, 2019)

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. Elementary Algebra

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. Economist (Jan 25, 2018)

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. Science Magazine (Feb 5, 2021)

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. Hidden Figures

Spin is a vector with a direction as well as a magnitude, and it is often represented by an arrow, ↑ or ↓, for example. Scientific American (Mar 15, 2022)