mathematics

Question 1

what formula is used to find the area of a cirlce

Question 2

what formula is used to find the area of a rectangle

Question 3

what formula is used to find the area of a triangle

Question 4

what formula is used to find the volume of a cylinder

Question 5

what formula is used to find the volume of a rectangular solid

Question 6

what is meant by the root of a number

Answer 6

the root of a number is one of two or more equal numbers, that when multiplied together, will produce the number

Question 7

what is an angle

Answer 7

a figure formed by two lines radiating from a common point

Question 8

what is meant by a right angle

Answer 8

an angle of 90

Question 9

what is an obtuse angle

Answer 9

an angle greater than 90 but less than straight line

Question 10

what is an acute angle

Answer 10

an angle between 0-90

Question 11

what is a quadrant

Answer 11

1/4 of circle

Question 12

what is a sector

Answer 12

the portion of a circle bund by two radii and one of the intercepted arcs

Question 13

what is a polygon

Answer 13

a closed figure having three or more sides

Question 14

what is an acute triangle

Answer 14

a triangle with 3 acute angle

Question 15

what is an obtuse triangle

Answer 15

a triangle with one obtuse angle

Question 16

what is a right triangle

Answer 16

a triangle containing a 90 angle

Question 17

what is an equilateral triangle

Answer 17

a triangle with 3 equal sides

Question 18

what is an isosceles triangle

Answer 18

a triangle with 2 equal sides

Question 19

what is a scalene triangle

Answer 19

a triangle in which no two sides are equal

Question 20

what is the hypotenuse of a right triangle

Answer 20

the side opposite the right angle

Question 21

what is a quadrilateral

Answer 21

a polygon having 4 sides

Question 22

what is a parallelogram

Answer 22

a closed 4 sided figure in which the opposite sides are parallel

Question 23

what is a trapizoid

Answer 23

a closed four sided figure in which only one pair of opposite sides are parallel

Question 24

what is a hexagon

Answer 24

a closed figure with 6 equal sides

Question 25

what is the significance of the constant pi

Answer 25

pi is the constant amount the circumference of a circle greater than its diameter

Question 26

what is the value of the constant pi

Answer 26

pi=3.1416

Question 27

what is meant by a ratio and how is a ration expressed

Answer 27

a fraction that compares one number to another, for example, 6:2

Question 28

what is meant by a proportion

Answer 28

a statement of equality between two ratios; for example 2/b=b/c is a proportions

Question 29

what is meant by a percentage

Answer 29

a fraction having 100 as the denominator, for example; 65%= 65/100

Question 30

what is the square root of 4,096

Answer 30

64

Question 31

what is the square of 99

Answer 31

9,801

Question 32

what is the cube of 5

Answer 32

125

Question 33

what is the cube root of 1000

Answer 33

10

Question 34

what is 50 gallon converted to liters

Answer 34

189.3 liters

Question 35

what is 25 kilos converted to pounds

Answer 35

55 pounds

Question 36

what is the base in the following expression: 10^3

Answer 36

10

Question 37

what is the exponent in the following expression; 10^3

Answer 37

3

Question 38

what is meant by scientific notation

Answer 38

a method of wiring very large or very small number by using powers of 10

Question 39

how do you write 56,000,000 in scientific notation

Answer 39

when converting standard notation to scientific notation, move the decimal to the left or right until there is one non-zero integer on its left. if you moved the decimal to the left, you'll multiply by ten times the number you moved it to the left, so 56,000,000 would be 5.6 X 10^7

Question 40

how do you write 0.00000096 in scientific notatio

Answer 40

9.6 x 10^-7

Question 41

what is 57,435 rounded to the nearest 100

Answer 41

57,400

Question 42

what is 3.141592 rounded to the nearest thousandth decimal point

Answer 42

3.142

Question 43

what is the eighth power of 2

Answer 43

256

Question 44

what is the official system of measurement used throughout the world, especially in scientific notation

Answer 44

the metric system

Question 45

what is meant by a negative number

Answer 45

a number less than 0, or a number preceded by a minus (-) sign

Question 46

what steps are used to add signed numbers

Answer 46

1. add all numbers having a plus sign 2.add all numbers having a minus sign 3. of these wanders, subtract the smaller from the larger. the sign of the awnser will be of the larger number

Question 47

what steps are used to subtract signed numbers

Answer 47

1. change the sign of the subtrahend (the number that is being subtracted) 2. if the sign are alike, add the two numbers and attach the common sign 3. if the signs are different, subtract the smaller from the larger and give the answer the sign of the larger

Question 48

what steps are used to multiply signed numbers

Answer 48

1. multiply the numbers, disregarding the signs 2. fi the signs of the 2 numbers are alike, the sign of the awnser is positive 3.if the sign of the 2 numbers are not alike, the sign of the awner is negative

Question 49

what steps are used to divide signed numbers

Answer 49

1.disregard the signs and divide as though the numbers had no sign 2. if the signs of the two numbers are alike, the sign of the awnser is positive 3. if the sign of the 2 numbers are not alike, the sign of the awnser is negative

Question 50

what is the precedence of operations when solving an algebraic equation

Answer 50

1. grouped expressions, such as parenthesis and radical expressions(Square roots) 2.exponents 3.multiplication and division 4.addition and subtraction

Question 51

what is the sum of (+6)+(+12)

Answer 51

18

Question 52

what is the sum of (+6)+(-12)

Answer 52

-6

Question 53

what is the difference between (+6)-(+12)

Answer 53

-6

Question 54

what is the difference between (-6)-(+12)

Answer 54

18

Question 55

what is the difference between (-6)-(-12)

Answer 55

6

Question 56

what is the product of (-6) x (-12)

Answer 56

72

Question 57

what is the product of (-6) x (+12)

Answer 57

-72

Question 58

what is the quotient of (-6) / (+12)

Answer 58

-1/2

Question 59

what is the quotient of (-6) / (-12)

Answer 59

1/2