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Levart [38]
2 years ago
8

a middle school has 212 people. 118 are students. the rest are adults. what is the ratio of students to adults?

Mathematics
1 answer:
dangina [55]2 years ago
7 0

Answer:

Students:Adults = 118:94

Step-by-step explanation:

212-118=94

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<h3>What is the equation of the ellipse associated with the coordinates of the foci?</h3>

By <em>analytical</em> geometry we know that foci are along the <em>major</em> axis of ellipses and beside the statement we find that such axis is parallel to the x-axis of Cartesian plane. Then, the <em>standard</em> form of the equation of the ellipse is of the following form:

(x - h)² / a² + (y - k)² / b² = 1, where a > b     (1)

Where:

  • a - Length of the major semiaxis.
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Now, we proceed to find the vertex and the lengths of the semiaxes:

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Vertex

V(x, y) = 0.5 · F₁(x, y) + 0.5 · F₂(x, y)

V(x, y) = 0.5 · (3, 2) + 0.5 · (- 9, 2)

V(x, y) = (1.5, 1) + (- 4.5, 1)

V(x, y) = (- 3, 2)

The equation of the ellipse in <em>standard</em> form is (x + 3)² / 100 + (y - 2)² / 64 = 1. (Correct choice: B)

To learn more on ellipses: brainly.com/question/14281133

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2 years ago
the mathematics Department of a college has 11 male professors 12 female professors 9 male teaching assistants and 12 female tea
Marta_Voda [28]

Answer:

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Make a Contingency_table

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