Posted on April 22, 2022 (Updated on July 9, 2025)
What is the difference between an expression and a function?
Space & NavigationExpressions are “syntactical” objects, i.e. pieces of language. Functions are (mathematical) objects, i.e. pieces of the world. A function is described/specified by an expression; the same function can be described by more than one expression. Is an expression a function? Thus an expression represents a function whose inputs are the values assigned to the free
Posted on April 22, 2022 (Updated on July 9, 2025)
What two transformations make up a glide reflection?
Space & NavigationTo do a glide reflection, perform the two transformations, which are 1) reflection over the given line of reflection and 2) translation with respect to the given directions. What is the composition of two glide reflections? The composition of two (or more) isometries is an isometry. Note : Because a glide reflection is a composition
Posted on April 22, 2022 (Updated on July 9, 2025)
How do you prove a quadrilateral is a kite?
Space & NavigationIf two disjoint pairs of consecutive sides of a quadrilateral are congruent, then it’s a kite (reverse of the kite definition). If one of the diagonals of a quadrilateral is the perpendicular bisector of the other, then it’s a kite (converse of a property). How do you show ABCD is a kite? Video quote: So
Posted on April 22, 2022 (Updated on July 9, 2025)
Does the Moon’s gravity affect humans?
Space & NavigationThere is no absolute proof that the Moon affects human mental and physical health, though its effect has been observed in other organisms: corals for instance appear to time their spawning based on the lunar cycle. How does the moon’s gravity affect us? The moon’s gravitational pull on the Earth is the main cause of
Posted on April 22, 2022 (Updated on July 9, 2025)
What does a total eclipse look like from Earth?
Space & NavigationSome parts of Earth fall inside a region that experiences complete darkness, known as the path of totality. Inside this path, a total solar eclipse looks like a black ball in the sky with wisps of light streaming out around it. On the moon, a solar eclipse makes Earth look like a giant eyeball staring
Posted on April 22, 2022 (Updated on July 9, 2025)
Is rhumb line a great circle?
Space & NavigationAdditionally, all meridians are rhumb lines, in addition to being great circles. A rhumb line always spirals toward one of the poles, unless its azimuth is true east, west, north, or south, in which case the rhumb line closes on itself to form a parallel of latitude (small circle) or a pair of antipodal meridians.