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Moment of inertia about x-axis for an ellipse is = pi*b^3*a /4. Where b is the distance from the center of the ellipse to the outside tip of the minor axis. a is the distance from the ceneter of the ellipse to the outside tip of the major axis.
Moment of inertia about x-axis for an ellipse is = pi*b^3*a /4. Where b is the distance from the center of the ellipse to the outside tip of the minor axis. a is the distance from the ceneter of the ellipse to the outside tip of the major axis.
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To design a building which type of moment of inertia you use about xaxis about yaxis or polar moment of inertia?
We use y_y axes
What is the value of the coordinate of every point on the xaxis?
It is called the ordinate.
Which point is not located on the xaxis or the yaxis of a coordinate grid?
Which point is not located on the xaxis or the yaxis of a coordinate grid?Read more:Which_point_is_not_located_on_the_xaxis_or_the_yaxis_of_a_coordinate_grid
When your independent variable is plotted on the xaxis and the dependent variable is plotted on the yaxis?
.... then your graph is inverted.
Nouns starting with x?
xylophone, X-man, Xanax, Xanadu, xanthan,Xavier, xaxis, xenia, xenobiotic, Xia, xenon, xerophagy, xunit, xylem, xyst, to name a few
Who are the main characters in the book the winter knight?
The main characters of The Winter Knights by Paul Stewart are Quintinius Verginix, Maris Pallitax, Vilnix, Phin, Raffix Emilius, Mans, Stope, Hax Vostillix, Daxiel Xaxis, and Dengreeve Yellowtusk.
How aerospace engineers use the quadratic equation?
The quadratic equation is used to find the intercepts of a function (F(x)=x^(2*n), n being an even number) along its primary axis (typically the x axis). Many equations follow this form. The information given by the quadratic equation depends on what your function is pertaining to. If say you have a velocity vs time graph, when the function crosses the xaxis your particle has changed from a positive velocity to a negative velocity. This information can be useful to determine the accompanying behavior of your position. The quadratic equation is simply a tool to find intercepts of a function.
What are twenty five words that can be used in math?
The numbers one through twenty-five That was simple. no. here are some real ones. pick your favorites! ;) (I have to know all of these for my algebra 1 class!) 1. Absolute Value-distance from zero (show symbol on board as well) 2. Acute Angle-An angle whose measure is less than 90 degrees. 3. Acute Triangle-A triangle with three acute angles. 4. Additive Identity Property-A property that says adding zero to any number results in the same number. 5. Additive Inverse Property-A property that says adding a number and its opposite results in 0. 6. Adjacent angles-Two angles that share a common side and vertex and do not overlap. 7. Angle-A figure formed by two rays that begin at a common point, called a vertex. 8. Arc-Part of a circle's circumference. 9. Area-The number of square units needed to cover a figure (amount of space on something). 10. Associative Property- A property that says the way you group 3 numbers when adding or multiplying does not make a difference in the resulting sum or product. 11. Base of a Power-The number or expression that is used as a factor in a repeated multiplication. (show example on board and circle part they need to identify) 12. Binomial-A polynomial with two terms. 13. Box-and -Whisker Plot-A data display that divides a data set into four parts using the lower extreme (minimum), lower (1st) quartile, median (2nd quartile), upper (3rd) quartile, and upper extreme (maximum). 14. Circle-The set of all points in a plane that are the same distance, called the radius, from a fixed point, called the center. 15. Circumference-The distance around a circle. 16. Coefficient- The number in front of a variable when they are multiplied together.(show example on board) 17. Commutative Property-- A property that says the order in which 2 numbers are added or multiplied does not change the resulting sum or product. 18. Complementary Angles-Two angles whose measures have a sum of 90 degrees. 19. Cone-A solid with one circular base. 20. Congruent- the term used when two angles or segments have the same length or measure 21. Constant- A term that has a number but no variable. 22. Coordinate Plane-A system of coordinates formed by the intersection of a horizontal number line, called the x-axis and a vertical number line, called the y-axis. 23.Correlation-a relationship between paired data that either shows an increase, decrease, or no relationship at all. 24. Corresponding Angles-Two angles that occupy similar (corresponding) positions when a line intersects two other lines. 25. Cross Product Property-Property used to solve proportions that says the product of the means equals the product of the extremes. You cross multiply (diagonally) to solve. 26. Cylinder-A solid with two congruent circular bases that lie in parallel planes. 27. Data-Information, facts, or numbers that describe something. 28. Decimal-A number written using the base-ten place value system where it separates the ones' and tenths' digit. 29. Degrees-Unit of measure for angles. 30.Denominator-The number b in the fraction a/b where b cannot = 0. (show example) 31. Diagonal-A segment, other than a side, that connects two nonconsecutive vertices of a polygon. 32.Diameter-The distance across the circle through its center. 33.Difference-The result when one number is subtracted from another. 34. Discriminant-The expression under the radical (square root) in the quadratic formula (b^2 - 4ac) which helps to determine the number of solutions of a quadratic equations. (show on board) 35.Distance Formula-- used to calculate the length from one point in a coordinate plane to another. (show on board) 36.Distributive Property-For all numbers a, b, and c, a(b + c) = ab + ac.(show on board) 37. Domain of a function-The set of all input values for the function. The x values. 38. Equation-A mathematical sentence formed by setting two expressions equal to each other. 39. Equilateral triangle-A triangle with three congruent sides. 40. Evaluate-To find the value of an algebraic expression by substituting a number for each variable and performing the operation(s). 41. Exponent-A number that represents how many times a base is used as a factor in a repeated multiplication. (show on board) 42. Experimental Probability-A probability based on repeated trials of testing. What actually happens when you play the games. 43. Expression-a mathematical statement without an equal sign or an inequality symbol that includes at least one variable 44. Factor- A whole number or pair of whole numbers that multiply to be another number. 45.Fraction-A number of the form a/b where b cannot = 0. 46.Function-A set of rules including a domain which contains the inputs and a range which contains the outputs. For each input there is exactly one output. 47.GCF-The greatest whole number that is a factor of two or more nonzero whole numbers. 48.Heptagon-A polygon with 7 sides. 49.Hexagon-A polygon with 6 sides. 50.Histogram-A graph that displays data from a frequency table. 51. Horizontal-a line or a direction that is parallel to the x-axis and goes from left to right (from East to West) 52.Hypotenuse-The side of a right triangle that is opposite the right angle. Always the longest side of a right triangle. 53.Image-The new figure formed by a transformation. After the transformation. 54.Improper Fraction-A fraction whose numerator is greater than or equal to its denominator. 55.Inequality-A mathematical sentence formed by placing one of the symbols <,>,≤, or ≥ between two expressions. 56. Input-The number that is put into the function. Set of all of these forms the domain. 57.Integers-The set of numbers…-4, -3, -2, -1, 0, 1, 2, 3, 4. Also referred to as the whole numbers and their opposites. 58.Interquartile Range-The difference of the upper and lower quartiles of a data set. 59. Intersection-the set of points or a point that two geometric figures have in common. 60. Inverse operations-Operations that "undo" each other. 61. Irrational Number-A real number that cannot be written as a quotient of two integers. The decimal form of this set of numbers neither terminates nor repeats. 62. Isosceles Triangle-A triangle with at least two congruent sides. 63. LCD-The least common multiple of the denominators of two or more fractions. 64. LCM-The least number that is a common multiple of two or more numbers. 65. Like Terms-Terms that have identical variable parts or are both constants. 66. Lower Quartile (Quartile 1)-The median of the lower half of an ordered data set 67. Mean-The sum of the values in a data set divided by the number of values. Also called the average. 68. Median-The middle value in a data set when the values are written in numerical order. 69. Midpoint-The point of a line segment that is equidistant from the endpoints of the segment (in the middle). 70. Midpoint Formula-- Formula used to find the point in the middle of two other points. (show on board) 71. Mixed Number-A number that has a whole number part and a fraction part. 72. Mode-The value in a data set that occurs most often. 73. Monomial-Polynomial with one term 74. Multiplication Identity-Property that states any number times 1 will result in the same number. 75. Multiplicative Inverse-Property that states a number multiplied by its inverse results in 1. A number and its reciprocal. 76. Natural Numbers-The set of numbers 1,2,3,4,5,……. Also known as the counting numbers. 77. Numerator-The number a in the fraction a/b. The top of a fraction. 78. Obtuse Angle-An angle whose measure is between 90 and 180 degrees. 79. Obtuse Triangle-A triangle with one obtuse angle. 80. Octagon-A polygon with eight sides. 81. Opposites-Two numbers that are the same distance from 0 on a number line but are on different sides of 0. 82. Order of operations-A set of rules for evaluating an expression involving more than one operation. We can use PEMDAS to help us follow these rules. 83. Ordered Pair-A pair of coordinates (x and y) that can be used to represent a point in a coordinate plane. 84. Origin-The ordered pair (0,0) where the x-axis and the y-axis meet in a coordinate plane. 85. Outlier-A value that is widely separated from the rest of the data in a data set. A bad data point. 86. Output-A number produced by evaluating a function using a given input. The set of all these is called the range of the function. 87. Parabola-The U shaped graph of a quadratic function. 88. Parallel Lines-Two lines in the same plane that do not intersect. 89. Parallelogram-A quadrilateral with both pairs of opposite sides parallel. 90. Pentagon-A polygon with five sides. 91. Percent-A ratio whose denominator is 100. Out of 100. 92. Perfect Square-A number that is the square of an integer. 93. Perimeter-The distance around a figure. 94. Perpendicular Lines-Two lines that intersect to form four right angles. 95. Plane-An example is a flat surface that extends in two dimensions.(wall, ground, floor, etc.) 96. Point-Slope Formula-Formula use to write an equation of a line when you have a point on the line and the slope of the line. (Draw on board) 97. Polygon-A geometric figure made up of three or more line segments that intersect only at their endpoints. 98. Power-A product formed from repeated multiplication by the same number or expression that consists of a base and an exponent.(show on board) 99. Prime Number-A whole number greater than 1 whose only whole number factors are 1 and itself. 100. Prism-A solid, formed by polygons, that has two congruent bases lying in parallel planes. 101. Probability-- A number from 0 to 1 that measures the likelihood, or chance, that an event will occur. 102. Product-The result when two or more numbers are multiplied. 103. Proper Fraction-A fraction whose numerator is less than its denominator. 104. Proportion-An equation stating that two ratios are equivalent. These are solved by using the Cross Product Property 105. Pyramid-A solid, formed by polygons, that has one base. The base can be any polygon, and the other polygons are triangles. 106. Pythagorean Theorem-a2 + b2 = c2 A.K.A leg 2+ leg2 = hyp2 107. Quadrant-One of the four regions that a coordinate plane is divided into by the x-axis and the y-axis. 108. Quadratic Equation-an equation that can be written in the standard form ax^2 + bx + c where the highest degree is 2. (show on board) 109. Quadratic Formula-A formula used to solve a quadratic equation. (show on board) 110. Quadrilateral-A geometric figure made up of four line segments, called sides, that intersect only at their endpoints; a polygon with four sides. 111. Quotient-The result of a division problem. 112. Radical- Another name for a square root. 113. . Radicand-The number or expression inside a radical (square root) symbol. (Show on board) 114. Radius of a Circle-The distance between the center and any point on the circle. 115. Range-The set of numbers of a function that contains all the output values. 116. Rate-A ratio of two quantities measured in different units. 117. Ratio-A comparison of two numbers using division. 118. Rational Number-A number that can be written as a fraction (a/b). 119. Ray-A part of a line that begins at a point (initial point) and extends in one direction without end. 120. Real Numbers-The set of all rational numbers and irrational numbers. All numbers on the the number line. 121. Reciprocals-Two nonzero numbers whose product is 1. When you "flip" a fraction. 122. Reflection-A transformation that flips a figure in a line, creating a mirror image of the figure. 123. Regular Polygon-A polygon with all sides equal in length and all angles equal in measure. A polygon that is both equilateral and equiangular. 124. Rhombus-A parallelogram with four congruent sides. 125. Right Angle-An angle whose measure is exactly 90 degrees. 126. Right Triangle-A triangle with one right angle. 127. Rotation-A transformation that turns/spins a figure through a given angle. 128. Scalene Triangle-A triangle with no congruent sides. 129. Scatter Plot-The graph of a set of a data pair which is a collection of points in a coordinate plane. 130. Scientific Notation-A number of the form c X 10n where c is greater than or equal to 1 and less than 10 and n is not an integer. (show on board) 131. Similar Polygons-Polygons that have the same shape but not necessarily the same size. 132. Simplify-To reduce or breakdown an expression into its lowest terms possible. 133. Slope-The ratio of a line's vertical change to its horizontal change between any two points. The rate of change of a line. Represented by the letter m. Rise over run. 134. Slope Formula-Formula used to find the rate of change of a line. (Show on board) 135. Slope-Intercept Form-A linear equation written in the form y=mx+b where m is the slope and b is the y-intercept of the equation's graph. (show on board) 136. Solution-A number or ordered pair of numbers that make an equation or an inequality true 137. Solve-To find the value of the variable(s) of an equation or inequality. 138. Sphere-A solid formed by all points in space that are the same distance from a fixed point called the center. 139. Square Root-Also called a radical. When trying to fine what number squared gives you the number inside this symbol. (show symbol on board) 140. Stem-and-Leaf Plots-A data display that helps you see how data values are distributed. Each data value is separated into the last digit and the remaining digits. 141. Straight Angle-An angle whose measure is exactly 180 degrees. 142. Substitution-A property that allows you to replace terms of equal value for one another. Example: putting 4 in for x. 143. Sum-The result when two or more numbers are added. 144. Supplementary Angles-Two angles whose measures have a sum of 180 degrees. 145. Surface Area-The sum of the areas of the outside surfaces of a solid. 146. Terminating Decimal-A decimal that has a final digit that stops and does not repeat. 147. Theoretical Probability-The probability of an event when all outcomes are equally likely. What is supposed to happen when playing the game. 148. Transformation-A movement of a figure in a plane that is done by a reflection, rotation, translation, or dilation. 149. Translation-A transformation that slides each point of a figure the same distance in the same direction. 150. Trapezoid-A quadrilateral with exactly one pair of opposite side parallel. 151. Trinomial-A polynomial with three terms. 152. Unit Rate-A rate that has a denominator of 1 unit. 153. Upper Quartile (Quartile 3)-The median of the upper half of an ordered data set 154. Variable-A letter that is used to represent one or more numbers. 155. Vertex-The common endpoint of the two rays that form an angle. Where the endpoints of polygons meet. 156. Vertical Angles-A pair of opposite angles formed when two lines meet at a common point. 157. Vertical-A line or direction that is parallel to the y-axis and goes from top to bottom/up and down (north to south) 158. Volume-The amount of space a solid contains in terms of cubic units. Amount of space inside the object. 159. Whole Numbers-The set of numbers 0,1,2,3….. Also called the Natural numbers including 0. 160. X-Axis-The horizontal axis in a coordinate plane. 161. X-Coordinate-The first number in an ordered pair representing a point in a coordinate plane. 162. X-Intercept-The x-coordinate of a point where the graph crosses the xaxis when y=0. 163. Y-Axis-The vertical axis in a coordinate plane.
