Growth Problems: For LINEAR GROWTH, y always changes by the same amount when x changes by the same amount. Example: Each successive year, $100 is added to the value of the account. For EXPONENTIAL GROWTH, y increases by more and more as x increases by the same amount. Examples: A stock doubles in value every[…]
Review of comma usage 1. These are all acceptable sentences. – Harry, travelling to the tutoring session, received a call. – Harry received a call, travelling to the tutoring session. – Travelling to the tutoring session, Harry received a call. – Sam, however, hates math. 2. NO comma before that – We all know that[…]
Ex post = After the fact Persona non grata = An unwelcome person Ex ante = Before the fact Carpe diem = Seize the day/of the day A posteriori = Relating to observed facts Dues ex machina = From Gd, Machine Ceteris paribus = Holding all else constant A fortiori = For a stronger reason[…]
Veiled = Hidden Galvanize = To spur/excite to action Yield = To give way to Coarse = Rough/not elegantly stated Qualify a claim = To state the limitations of an argument Treachery = Disloyal Dreary = Sad/gloomy Malleable = Flexible Freewheeling = Off the cuff Employ = To use Frank = Honest/open Mediation = Going[…]
Sequester = To isolate Austere = Serious/severe Egregious = Very bad Withstand = To handle hardship Thaw = To defrost Opine = To give an opinion on Mitigate = To lessen Proclaim = To state strongly Pragmatic = Practical Skeptical = Questioning Dubious = Doubtful Egregious = Very bad Systemic = Affecting an entire system[…]
Did you know? The ACT has a science section that tests skills such as analyzing scientific observations. Freezing: the substance changes from a liquid to a solid. Melting: the substance changes from the solid to the liquid. Condensation: the substances changes from a gas to a liquid. Vaporization: the substance changes from a liquid to[…]
Did you know? These are some basics of chemistry that are important to know for the ACT Science section. Elements: – Na = sodium – K = potassium – Ca = calcium – Mg = magnesium – C = carbon – Al = aluminum – S = sulfur – Cl = chlorine – O =[…]
Below are a few of the most commonly known compounds: Glucose – C6H12O6 Hydrochloric acid – HCl Water – H2O Salt – NaCl Octane – C8H18 Baking soda – NaHCO3 Hydrogen peroxide – H2O2
CH4 + 2O2 –> CO2 + 2H2O Left hand side: 1 C, 4 H, 4 O Right hand side: 1 C, 4 H, 4 O
These equations are important for SAT and ACT math. – Percent change: (new-old)/old * 100 – Percent error: (experimental-theoretical)/theoretical *. 100