Math Practice- percentages,nPr, nCr, and more…

Math Practice- percentages,nPr, nCr, and more…

1. How many integers between 0 and 999 contain a single digit that is a 7? 2. The probability of scoring 90 or above is .35 in a group of 11 students, find the probability that 10 or 11 score a 90 or above? 3. Staples now sells their own notebooks. Making notebook has a fixed[…]

Words of the Week

Latent- Hidden Conspicuous- Visible Binary- 2 parts Caveat- A limitation on an argument Qualify (v)- To put limitations on an argument Cluster- To group Disjoint- Not going together Empirical- From evidence or experiments Deterministic- Process where final state is completely predicted by initial state Extraneous- Extra (not needed) Interpolate- To estimate reasonably Extrapolate- To estimate[…]

SAT and ACT Grammar- on the Lookout

SAT and ACT Grammar- on the Lookout

At this point, you are almost there are on the English/Writing section. Here are the question types to be on the lookout for. You know these grammar rules, you just have to recognize when they are being tested. 1. Separating two complete sentences There are only a few ways to CORRECTLY do this. You can[…]

Helpful SAT/ACT Math Formulas

Vcylinder = πr²h SAcylinder = 2πr² Vsphere = (4/3)πr³ SAsphere = 4πr² Vcube = s³ SAcube = 6s² Face Diagonal (cube) = s√2 Inner Diagonal (cube) = s√3 Graph a circle: (x-h)²+(y-k)²=r² Parabola: y=a(x-h)²+k a>0 -> concave up a<0 -> concave down Total degree measure in polygon: (n− 2)(180) Degree measure of 1 angle in a reg. polygon:[…]

ACT/SAT Grammar- Common Mistakes

ACT/SAT Grammar- Common Mistakes

Mistake #1: Its versus It’s Example: The class lost it’s privileges. False Assumption: If you want to show possession, you must use an apostrophe. The Truth: It’s always equals “it is.” The possessive form of the word is always its, without an apostrophe. The Correction: Ask yourself, “Do I mean it is?” If not, skip the apostrophe.  Similar common[…]

Basic Grammar Rules for the ACT/SAT

Basic Grammar Rules for the ACT/SAT

It is important that you understand how to properly combine independent clauses because punctuation can play a key role in defining the meaning of a sentence. A) Use a comma to separate independent clauses when you use a coordinating conjunction. (and, but, or, for, nor, so, yet) B) Use a semicolon to separate independent clauses[…]