6.75$ you take the percent divided by 100
that gets its it in decimal form
multiply that number by the original price
that gets its it in decimal form
multiply that number by the original price
An ellipse has a center at the origin, a vertex along the major axis at (0, 17), and a focus at (0, −8).
2 answers:
Answer:
The last one.
Step-by-step explanation:
The standard form equation of an ellipse with foci on the y-axis is ...
y²/a² +x²/b² = 1
where "a" and "b" are the lengths of the semi-major and semi-minor axes, respectively. If "c" is the distance from the center to the focus, then this relation also holds:
b² +c² = a²
For this ellipse ...
b² + 8² = 17²
289 -64 = b² = 225 . . . . . subtract 8²
b = 15 . . . . . . . . . . . . . . . . . take the square root
The equation of the ellipse is then ...
y²/17² +x²/15² = 1
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