math

Question 1

decimal point

Answer 1

separates whole number from its fractional part, non zero digits to the left indicate number greater than one non zero digits to the right indicate number less than one

Question 2

fraction

Answer 2

has a numerator and denominator, numerator is above the fraction bar while denominator is below. numerator is divided by the denominator to get a decimal.

Question 3

intergers

Answer 3

whole numbers and their opposites, -2,-1,0,1,2 whole numbers are positive while the opposites are negative.

Question 4

squaring a negative

Answer 4

while the squaring is inside the parentheses it stays negative when its on the outside multiply/square as normal

Question 5

factor

Answer 5

is any integer that divides a number exactly (with no decimals?)

Question 6

prime number

Answer 6

any integers with exactly 2 factors: 1 and n

Question 7

ratio

Answer 7

compares one number to another quantity by division,

Question 8

proportion

Answer 8

when two ratios are equal

Question 9

rate

Answer 9

a ratio that compares quantities with different units of measure (miles per hour)

Question 10

percent

Answer 10

a ratio that compares a number to 100 by division

Question 11

estimation

Answer 11

round to the numbers as close to given number as posible may be helpful to look at the answer choices before solving

Question 12

perimeter

Answer 12

the distance around a 2d figure (L+L+W+W or 2L+2W)

Question 13

area

Answer 13

number of square units inside a 2d figure L*W

Question 14

radius of a circle (r)

Answer 14

line segment with an endpoint at the center of a circle and an endpoint at the circle

Question 15

diameter of a circle (d)

Answer 15

line segment that passes through the center of a circle and has endpoints on the circle d=2r

Question 16

circumference of a circle (c)

Answer 16

distance around the circle c=2(pi)r or c=(pi)d

Question 17

area of a circle

Answer 17

a=(pi)radius squared

Question 18

surface area

Answer 18

total area of the surface of a 3d figure
sa=side total(L*W)

Question 19

angle

Answer 19

consisting of 2 segments or rays that have the same endpoint, they are measured in degrees. the sum of angles on a straight line are 180. the sum of internal triangle angles are also 180, a square/ rectangle has 4, 90 degree angles. the sum of angles around the center of a circle is 360.

Question 20

variable

Answer 20

is a letter like x, which represents a number or quantity.

Question 21

expressions

Answer 21

2+x and 3y

Question 22

eqations

Answer 22

4b-10=2 and 2(a+6)=20

Question 23

inequalities

Answer 23

c/3>6 and 2r < 20

Question 24

bar graph

Answer 24

uses bars to make comparisons between parts of data

Question 25

line graph

Answer 25

uses line segments to show changes in the data over time

Question 26

circle graph

Answer 26

uses a divided circle to compare parts of the data to show a whole data set

Question 27

dot plot

Answer 27

uses dots to display the number of each value in a data set

Question 28

mean

Answer 28

sum of the values divided by the number of values

Question 29

median

Answer 29

is the middle value, when the list is place in either increasing or decreasing order

Question 30

mode

Answer 30

is the value that occurs the most

Question 31

range

Answer 31

results from subtracting the least value from the greatest value

Question 32

probibility

Answer 32

the measure of likelihood that an event will occur. the probability of an event is the number between 0 and 1. the closer the event is to 0 the less likely it will occur, the closer it is to 1 the more likely it will occur. the probability of an event, P, is calculated by the ratio. number of specific outcomes p= ------------------------------------------ total number of outcomes

Question 33

solve: red:apple, grape, raspberry, strawberry orange: cantaloupe, peach yellow:banana, mango green:apple, grape, kiwi, melon a customer can buy one fruit from each color section. How many different possibilities are there?

Answer 33

64 red=4 options orange=2 options yellow=2 options green= 4 options 4*2*2*4=8*8=64