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EXL PREP MATH
| Question | Answer |
|---|---|
| formula for area of a circle | A = πr² |
| formula for circumference of a circle | C = 2πr |
| formula for slope point form | ( y - y1 = m ( x - x1 ) |
| finding intercepts (x and y) | Set X = 0 finds y-intercept Set Y = 0 finds x-intercept |
| formula for 3-D shapes | L x W x H |
| slope formula that is used for both FINDING the slope and finding points FROM just slope. | m= y1-y2 / x1-x2 |
| formula for surface area of a cylinder | A=2πrh+2πr2 |
| formula for midpoint | averages of ( x1+x2 , y1+y2 ) in coordinate form. |
| probability formula | amount desired / TOTAL |
| Calculating precentage | amount / total x 100 |
| scientific notation | move the decimal place according to how many times the exponent tells you! |
| exponent rules: multiplication | adding the exponents together. |
| exponent rules: raising an already exponential expression to different power. | you multiply those two exponents together. |
| exponent rules: when an exponent is 0. | the number is transformed to 1. |
| exponent rules: division | subtract the exponents from each other. |
| exponent rules: (A x B) raised to another power | you raise both numbers to exponential expressions and then multiply. |
| standard form | Ax + By = C |
| distance between two points on a graph formula | make a slope triangle and find the hypotenuse! |
| formula for finding interior angles of a shape. | (n-2) x 180, then divide that number by the amount of angles. |
| formula for volume of a cone | (B x H) 1/3 |
| formula for volume of a cylinder | B x H |
| formula for volume of a pyramid | (B x H) 1/3 |
| surface area of a pyramid | areas of all the sides added together |
| circumferance is............. | outer edge length |
| inequalities | it functions just like a linear equation, but multiplying or dividing by a negative number switches the direction of the sign. |
| when dealing with transformations, remember... | wherever the point is transferred, pay attention to the signs, because they tell you what quadrant you're in. |
| what is congruent? | same size and shape |
| tips for math word problem effectiveness | CUBES (Circle numbers, Underline question, Box keywords, Eliminate extra info, Solve) |
| Gallons are......... (remember MR GALLON) | 4 quarts, 8 pints, 16, cups, and 128 fluid ounces. |
| Liters are...... | 10 deciliters, 100 centiliters, 1000 milliliters (ml) |
| True or False, BACKSOLVING is the best thing to do for harder equations | TRUE!!!!!!! |
| math root kilo and milli | 1000 |
| math root centi | 100 |
| math root deci | 10 |
| fractional complex word problems... remember...... | simplify before solving |
| calculating percentages : strat 2 | divide the 2 numbers |
| effectiveness is.......................... | trying my best. |
| volume for a sphere | V=4 /3 πr3 |
| finding triangular probable side lengths | the side lengths must be proportionate to the picture |
Created by:
26jcaudill