Examples of forming in the following topics:
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- The prime form of the row is the main form to which all other forms are referenced.
- Any row form that is the same as, or a strict transposition of, that opening prime form is also a prime form.
- A retrograde form of the row takes a prime form and exactly reverses the pitch classes.
- Inversion forms are labeled according to the first pitch class of the row form.
- Retrograde inversion forms reverse the pitch classes of inversion forms and are named for the last pitch class in the row form.
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- Quadratic equations may take various forms.
- You have already seen the standard form:
- Another common form is called vertex form, because when a quadratic is written in this form, it is very easy to tell where its vertex is located.
- The vertex form is given by:
- It is more difficult to convert from standard form to vertex form.
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- Another way of arranging a linear equation is in standard form.
- In the standard form, a linear equation is written as:
- For example, consider an equation in slope-intercept form: $y = -12x +5$.
- However, the zero of the equation is not immediately obvious when the linear equation is in this form.
- Convert linear equations to standard form and explain why it is useful to do so
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- This is called the form of the music.
- Other forms are easy to understand because they are so familiar; if you see dogs more often than you do sea cucumbers, it should be easier for you to recognize the form of an unfamiliar dog than of an unfamiliar sea cucumber.
- Musical forms offer a great range of complexity.
- It is also easier to recognize familiar musical forms.
- You can enjoy music without recognizing its form, of course.
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- The blastocyst, forming early in embryonic development, has two layers that form the embryo and placenta.
- In humans, the blastocyst is formed approximatelyy five days after fertilization.
- The blastocyst possesses an inner cell mass (ICM), or embryoblast, which subsequently forms the embryo, and an outer layer of cells, or trophoblast, which later forms the placenta.
- The trophoblast combines with the maternal endometrium to form the placenta in eutherian mammals.
- The floor of this cavity is formed by the embryonic disk, which is composed of a layer of prismatic cells, the embryonic ectoderm.
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- Fetal skin forms from three layers: ectoderm, mesoderm, and neural crest cells.
- At four weeks gestation, simple ectoderm epithelium forms.
- Between four and 12 weeks, the basal cellls divide repeatedly forming the stratified epithelium.
- During this same period, the mesoderm forms the blood vessels and connective tissues.
- Other cords begin to form mammary glands.