Math exam Flashcards

1
Q

how do you calculate mean

A

Add all the values together then dived by how many numbers there are (the average)

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2
Q

how do you calculate median

A

middle value (when there are 2 calculate the mean of those values) (add them and divide by 2)

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3
Q

how do you calculate mode

A

most repeated value

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4
Q

whats the rate of change

A

The slope value

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5
Q

Whats the inital value

A

Y-int

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6
Q

what is Z-pattern

A

Alternate angles are equal

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7
Q

What is F-pattern

A

corresponding angles are equal

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8
Q

what is C-pattern

A

co-interior angles add up to 180

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9
Q

what is inscribed angle theorem

A

the angle between 2 radius is 2 times bigger then the angle between 2 cords if the radius is intersecting

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10
Q

What is Reflex angles

A

the central angle and the reflex angle they add up to 360 and the central angle is always smaller

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11
Q

improper to mixed

A

Divide numerator by the denominator for your whole number then keep the denominator then times the whole number and the denominator and have the remainder as your numerator

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12
Q

Mixed to improper

A

multiply the whole number and the demominator plus add the numertor for your top number and the bottom remains the same

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13
Q

Fraction into percentage

A

top number divided by bottom number x 100

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14
Q

how to find the percent of a number

A

put the percent into a decimal and times it by the number for example 25% of 40 would be 40x0.25

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15
Q

when it asks you to express as a single power and your see a division sign what do you do with the exponents

A

minus them (Quotient law)

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16
Q

when it asks you to express as a single power and your see a multiplication sign what do you do with the exponents

A

add them (product law)

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17
Q

when it asks you to express as a single power and your see a exponent inside and outside the bracket

A

multiply them (power law)

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18
Q

What is the value if the exponents are equal to zero

A

one

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19
Q

what is a coefficient

A

term beside a variable

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20
Q

what is a constant

A

term that stands alone

21
Q

what is a Monomial

A

A polynomial with one term

22
Q

What is a binomial

A

Polynomial with two terms

23
Q

What is a trinomial

A

A polynomial with three terms

24
Q

how to find the Q0

A

smallest value

25
how to find Q1
middle of lower half
26
how to find Q2
Middle value
27
How to find Q3
middle of upper half
28
How to find Q4
largest value
29
how to find y value in a first difference table
find what 0 is equal too if there is no zero continue the patter to reach 0 and set that value equal to y
30
when being given 2 sets of points what should you do (determine the slope of the line segment)
m=y2-y1/x2-x1
31
if the value if greater then or equal too you put a ? line for inequalitys
solid line
32
If an equation is being translated up or down what's that refering to
the y-int
33
If an equation is being Rotated what's that refering to
the m value (slope)
34
what is simple interest
simple interest is interest grown on a fixed number in your account
35
what is compound interest
compound interest is interest built on a growing number
36
what are natural numbers?
Countable numbers without zero
37
what are whole numbers
countable numbers plus zero
38
what are integers
positive and negative number
39
what are rational numbers
a fraction with two integers
40
what are irrational numbers
All non repeating decimals example pie
41
what are real numbers
all rational and irrational numbers
42
what are imaginary nummbers
numbers with the weird j or square rooted
43
what is complex numbers
any imaginary or real number
44
what is parallel lines
slope= equal y-int=different
45
what is perpendicular lines
slope= negative reciprocals y-int=same/different
46
when the line is horizontal the slope is
zero
47
when the line is vertical the slope is
undefined
48