How do you find the distance between the focus and directrix of a hyperbola? (vii) The equations of the directrices are: y = β ± ae i.e., y = β – ae and y = β + ae. (ix) The length of the latus rectum 2 ∙ b2a = 2a (e2 – 1). (x) The […]

How do you find the degree of rotational symmetry? The number of times that it can be rotated is called the order of symmetry. The degree of rotation equals 360 degrees divided by the order of rotation, and will range between 0 and 180 degrees. Does 180 Degree have rotational symmetry? An object has rotational […]

How do you calculate the OD of a pipe? Measure or calculate the outside circumference of the pipe. Then divide that amount by pi, usually rounded to 3.1415. The result is the outside diameter of the pipe. How do you calculate internal dia of a pipe? Calculation of Pipe Internal Diameter (ID) Pipe ID = […]

What does 1 yard of gravel weigh? about 2,200 pounds How much does a yard of 3/4 gravel weigh? Approximate Weight per cubic yard: 2400 lbs (1.2 tons) Will a yard of gravel fit in a pickup? Can I haul a cubic yard in my pickup truck or trailer? Full-size Pickup Trucks: Can usually handle […]

How do you divide a Pentagon in a triangle? If we divide a pentagon into triangles as in the figure on the left below, the pentagon is made up of 3 triangles, so the angle sum is 180 + 180 + 180 = 3*180 = 540 degrees. However, the non-convex pentagon on the right is […]

What is the purpose of translations in math? Translation Definition Translation is a term used in geometry to describe a function that moves an object a certain distance. The object is not altered in any other way. It is not rotated, reflected or re-sized. How are rigid transformations used in real life? Examples. Rigid motions […]

What are examples of derivatives? What are some examples of derivatives? Common examples of derivatives include futures contracts, options contracts, and credit default swaps. Beyond these, there is a vast quantity of derivative contracts tailored to meet the needs of a diverse range of counterparties. What are flow options? Options flow data is the term […]

How do you find the area of a plane region? To find the area of a region in the plane we simply integrate the height, h(x), of a vertical cross-section at x or the width, w(y), of a horizontal cross-section at y. How do you find the area of an integral? The area under a […]

How high up the wall does the ladder reach? twelve feet When a 20 ft ladder is leaned against a wall it makes a 72 degree angle with the ground how high up on the wall does the ladder reach? 19.02 feet How far is the bottom of the ladder from the wall? Formulas: A […]

How do I calculate square footage for tile? Floor Tile Calculator: Multiply the length times the width, then divide by the area of the tile. Since most come in inch measurements, you’ll need to divide square inches by 144 to find square feet. How do you calculate tile adhesive? √x. Based on the formula. 1.67Kg/sqm […]