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teas math
teas ATI 6th edition study guide
| Question | Answer |
|---|---|
| 1 inch= cm | 2.54 cm |
| 2.54 cm =in 1 foot=in 1 lb = oz | 1 inch 12 inches 16 oz |
| 1miles=km | 1.609km |
| 1.609km = miles? | 1 miles |
| 1 miles= ft 1 yard = ft 1 meter = ft | 5280 ft 3 feet 3,280 ft |
| 3.280 feet=m 1 gallon= pt | 1 meter 8 pints |
| 8 pints = gallon 1 gallon= quart 1 quart= pints | 1 gallon 4 quarts 2 pints |
| 1 pint= ounces 1 pint = cup 1 liter = ounce | 16 ounces 2 cups 33.814 ounces |
| 1 liter=quart 1 kg = lb 1 ounce= gram 1 meter = yard | 1 quart 2.2 lb 28 grams 1 yard |
| Fahrenheit to Celsius | 5/9 (F-32) |
| Celsius to Fahrenheit | 9/5(c+32) |
| area of a circle circumference of a circle | pi r^2 2 pi r |
| perimeter of a rectangle area of a rectangle | 2l+2w LW |
| area of a triangle perimeter of a triangle | 1/2b(h) a+b+c |
| perimeter of a square | 4s |
| circular cylinder | pi r^2 h |
| the average adult is __ to __ (m) meters tall | 1.5-2 |
| symmetry graph is | divided at the center and is like a mirror. |
| single peak is called a two peaks is called a | unimodal bimodal |
| graph with single peak in center is called a | bell-shaped, unimodal (normal) |
| when data is spread equally across the range of the distribution this is called a | uniform distribution |
| to calculate mean | add all numbers together and divide by how many numbers there are |
| the median is the most | middle number |
| the number that occurs the most is called | mode |
| you calculate the range by | the highest-lowest number. |
| lines can be formed by | y=mx+b |
| y=mx+b is | m= slope intercept b=0 |
| for y=mx+b when b=0 | y-intercept=0 |
| dependent variable is independent variable | depends on at least one other variable determines another variable. |
| circumference is circumference of a circle= | length around a circle 2(Pie)r |
| length of a particular part of a circle (arc) is L= | n/360 x 2(pie)r |
| for a circle n is the | degree of the angle |
| perimeter is all of the outer | lengths added together |
| area units always has a | squared at the end |
| area of a square is A= | L x L |
| area of a rectangle is A= | L x W |
| area of a triangle is A= | 1/2 x B x H |
| parallelogram A= | H X B |
| Trapezoid A= | 1/2 X H X (b1 + b2) |
| Area of a circle is A= | (pie) X r^2 |
| Rhombus Area is A= | 1/2 X d1 X d2 |
| 1 kg is in grams 1 km is in meters 1 kl in liters | 1000 grams 1000 meters 1000 liters |
| to find the missing length of a triange is | a^2+b^2=C^2 |
| 10^0= 10^-1= 10^-2= | 1 1/10 1/100 |
| 27 and 25 hundredths is | 27.25 |
| 9 and twenty seven hundredths is | 9.27 |
| M in roman letters = C in roman letters is | 1000 100 |
| placing the roman letters C before M indicates that MCM is MM is | 100 -1000 1900 2000 |
| L in roman letters = X in roman letters = V is roman letters = II in roman letters = | 50 10 5 2 |
| 10^1= 10^2= 10^-3= 10^3= | 10 10x10=100 1/1000 1000 |
| prime factorization is the act of ___ a number into a product of prime numbers. | factoring |
| To find a ____ of a number, write a series of divisions with the lowest primes with the number under the consideration is ____ | prime factorization, divisible |
| when multiplying fractions you multiply | straight across |
| when dividing fractions you | flip the second number and x ex. 12/3= 12/1 / 3/1= 12/1 x 1/3= 12/3= 4 |
| when adding or subtracting fractions you must have a | common denominator |
| when dividing decimals there can not be a decimal in the numerator so you must | move it ex. .043/.15652 = 43/156.52 |
| to find the absolute value of a number you count the | distance from 0. |
| rational numbers when converted to a decimal form | terminates or repeats |
| irrational numbers form neither ___ or ___ and cannot be written as a ____ (fraction) | terminates or repeats, rational |
| absolute values mean that the answer could be | positive or negative |
| the absolute value for the equation lxl=3 is | x=3 or -3 |
| IV is IX is XL is | 4 9 40 |
| XC is CD is CM is | 90 400 900 |
| for roman numbers if the smaller value is written to before the large value that u | minus the smaller number from the larger number |
| MMM= D= LXXII = | 3000 500 72 |
| MMMDLXXII= | 3572 |
| LX is | 60 |
| C= | 100 |
| of means | times or x |
| what translates to a | variavle |
| is means | equals or = |
| % means | x 0.01 |
| the average adult in meters is | 1.5-2m |
| in celius 0= 10= 20= 30= | 0= freezing 10= not freezing 20= warm 30= hot |
| 1cc is the same as | 1 ml |
| constant of proportionality is also known as | rate of change (m) |
| if a number is three times as large as another number in a ratio and fraction | 3:1 or 3/1 |
| if 4lb sugar costs $2.59, how much should 5lb sugar cost? set the equation. then you do? | 4/$2.59 = 5/x then cross multiple and solve for x |
| a 10ml vial of aminophylline is labeled "50 mg per ml" what is the amount of aminophylline in this vial? | x/10 = 50/1 x= 500mg |
| direct variation or direct proportion is when something | increases or decreases respectively |
| 1 mile= ft? | 5280 ft |
| a unit rate means that | the denominator is 1 EX: 25 miles/ hr |
| 4 times the price of one hotdog = $26. we want to know the price of 1 hotdog so we solve the equation for ___ and divide both sides by ____ (equation 4H= $26) | 1 hotdog, 4 |
| Pie charts are mainly used to present | portions/ percentages of a whole |
| measures of central tendency includes | mean, median, and mode |
| to get the mean | add all numbers and divide by how many numbers there are |
| median is the | midpoint of the list from least to greatest |
| if there are 2 numbers in the median than you? | add both together and divide by 2 |
| numbers in a list that are extremely larger or smaller than the other numbers are called an | outlier |
| the mode is | the number that occurs the most |
| the range is found by | max-min |
| for a graph symmetry is when | you can split in half and its a mirror |
| in a graph if distributions with fewer observations on the right it is | skewed right |
| in a graph if distributions with fewer observations on the left it is | skewed left |
| ___ occurs when 2 or more variables are related to each other. | covariance |
| when an increase in a variable produces the decrease in another it is called an | inverse variation |
| in the equation y=kx and y=k/x the variable x is called the ____ and the variable y is the ____ | independent, dependent |
| the independent variable is normally ___ on a graph and the dependent variable is normally ___ on a graph | x (horizontal), y (vertical) |
| there are __ mm per cm | 10 |
| 1 inch is ___ cm | 2.54 |
| surface area is the is figured out by multiplying | top and bottom, left and right, front and back and then add them all together |
| surface area of a sphere/ ball is | 4(pie)r^2 |
| surface area of a cyclinder is the area of the rectangle: | 2(pie)rh |
| if the cylinder has closed ends the surface area will be with the 2 circle ends | 2(pie)rh+2(pie)r^2 |
| to find the area of a semi circle triangle you need to | find the area of triangle and semicircle |
| to find the height of a semicircle triangle (triangle) use the radius ex. side 9.2 radius 3 | 9.2^2=3^2xh^2 = 75.64^2 |
| for the semicircle triangle (triangle) the base is 6 and the height is 75.64^2 the area will be A= | 1/2 (6) 75.64^2 A= 3 (75.64^2) |
| the area of the semi circle triangle (semi circle) is A= | (pie r^2) /2 |
| Once you have the area of the semi circle triange (triangle =3 (75.64^2) (semi circle (9/2)pie) you will | add them = about 40.229 square unites |
| a/b is a | fraction |
| order of operations PEMDAS | (), exponent, multiple, division, addition, subtraction |
| > | greater than |
| < | less than |
| _> | greater that or equal to |
| <_ | less than or equal to |
| ___ usually letters that represent an unknown quantity | variables |
| ___ are numbers | constants |
| 4x-7=2x+11 What is the variable terms | 4x, 2x |
| 4x-7=2x+11 what is the constants | -7,11 |
| 4x-7=2x+11 what is the coeffect | 4,2 |
| ___ math operations are just the opposite of the other or undue each other ex, division and multiplication or addition and subtracition | inverse |
| ___ can be represented by fractions, this includes whole numbers, positives and negatives, zero, and decimals that either terminate or repeat. | rational |
| an ___ is an unexpected value that does not fit any trend or pattern in the data. | outlier |
| pie is aprox | 3.14 |
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xokitty17xo
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