- Or create your own photobook in seconds.
- Create now!

Hello, you either have JavaScript turned off or an old version of Adobe's Flash Player.
Get the latest Flash player.

S: ACT MATH PROJECT

FC: ACT Math Project Matt Knight 1st Period Feb 21st, 2012

1: Table of Contents 2/3..................................ACT skill 31 4/5.................................ACT skill 32 6/7.................................ACT skill 33 8/9..................................ACT skill 34 10/11.......................ACT skill 35 12/13..............................ACT skill 36 14/15...........................ACT skill 37 16/17...........................ACT skill 38 18/19...............................ACT skill 39 20/21.............................ACT skill 40 22/23...............................ACT skill 41 24/25..........................ACT skill 42 26/27............................ACT skill 43 28/29..............................ACT skill 44 30/31.............................ACT skill 45 32/33..........................ACT skill 46 34/35..............................ACT skill 47 36/37................................ACT skill 48

2: When adding with matching bases and exponents, you'll simply add the coefficients. 2n^2 + n^2 = 3n^2 | they won't combine if the exponents and/or coefficients do not match 2n + n^2

3: if you get a negative exponent, just take the reciprocal n^-2 = 1/n^2 | when you have a fractional exponent, rewrite it so that the top # is the exponent and the bottom is the root n^4/3 = 3sqrt n^4

4: in y=mx+b, m = slope, and b = y intercept | the y and the x are a given set of coordinates

5: slope is equal to the rise over the run | the y intercept is where the line intercepts the y axis

6: a lot of questions will ask how many ways a group of things can be arranged | take each number of choices and multiply them

7: chevrolet lets you pick the color, audio system, and sunroof options for an SUV. you can get red, blue, white or black. a standard sound system, or an aftermarket one, and no sunroof/small sunroof/large sunroof. 4x2x3 = 24 therefore there are 24 possible configurations

8: sohcahtoa means sin - opposite hypotenuse cos - adjacent hypotenuse tan - adjacent opposite | when trying to find the sin/cos/tan of a triangle based on leg length, you'll use sohcahtoa

9: sohcahtoa is a way of remembering how to use the leg lengths to get the sin/cos/tan | sin = opposite/hypotenuse cos = adjacent/hypotenuse tan = adjacent/opposite

10: when dealing with cosecant, secant, and cotangent, sohcahtoa doesn't help | cosecant = 1/sin secant = 1/cos cotangent = 1/tan

11: cosecant = hypotenuse/opposite secant = hypotenuse/adjacent cotangent = adjacent/opposite | these are just the reciprocals of sin/cos/tan

12: probability can be simply expressed as the amount you want, over the amount that you have in total | there are 5 blue marbles, 2 red marbles, and 9 yellow marbles in a bag. what are the odds of randomly picking a blue one?

13: 5 blues/16 total

14: Anything multiplied by 0 is equal to 0 | if a problem says something like this: (x+2)(x-4)=0 use the answers!

15: Take your answers and plug them into the formula until you get a product of zero | as long as one set of parenthesis will be equal to zero, the whole equation will multiply out to zero

16: When x^2 is in an equation, the graph will be called a parabola | it looks like a big curvy line

18: Circles have a formula too, and some question relating to it is almost always on the ACT | (x-h)^2 + (y-k)^2 = r^2

19: (h,k) is the center of the circle | This is always ranked as a medium or hard question because nobody has the formula memorized, but it's really easy

20: The ACT loves to use triangles formed by the sides of circles | its always a right triangle, with the hypotenuse forming the diameter of the circle

21: the right angle is always opposite of the diameter of the circle

22: absolute value is expressed by a pair of bars around a number or set of numbers | it means that regardless of sign, the number will be positive

23: you can't just drop the sign, you have to do the math inside the bars, then make it positive

24: sequences can be arithmetic or geometric | arithmetic sequences will repeatedly add a number

25: geometric sequences will multiply | you'll usually just have to predict the next in a sequence

26: fahrenheit to celcius conversions are usually on the ACT | the formula is F=9/5C+32

27: just plug in whichever one you have and solve the equation

28: Focus, but relax | if something is in parenthesis and has an exponent, multiply everything inside the parenthesis

29: remember to foil parts of equations | the denominator will apply to every part of the numerator

30: Remember the middle term when you FOIL | Remember PEMDAS

31: Anything without an exponent has an implied exponent of 1 | Don't get tripped up by strange units of measurement

32: fractions multiplied by fractions get smaller, not bigger | the higher negative number that you have, the lower the number

33: subtracting a negative number is the same as adding a positive | anything times zero is zero

Get up to **50**% off your first order!

or

By clicking on the Create button, you agree

to Mixbook's Terms of Service.

to Mixbook's Terms of Service.

Welcome back! Go ahead and Log In

or

Your first order