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2 years ago

Identify the pair of angles as complementary, supplementary, both, or neither.

Mathematics

2 answers:

nikitadnepr [17]2 years ago

8 0

Answer:

Complementary

Step-by-step explanation:

Because that angle is 90°

geniusboy [140]2 years ago

6 0

The angles are complementary because complementary angles add up to 90 while supplementary angles line up to 180

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klasskru [66]

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2 years ago

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deff fn [24]

Answer:

h + 7

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2 years ago

Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?

NemiM [27]

Answer:

x squared over 4 plus y squared over 8 equals 1

Step-by-step explanation:

The general equation of ellipse is given as;

(x²/a²) + (y²/b²) = 1

The coordinates of a foci are: (±c, 0) where;

c² = b² - a²

However, we know that equation of directrix is; x = ±a/e

Now, Directrix is given ±4

Thus, a/e = 4

a = 4e

We also know that c = ae from ellipse foci coordinates.

Thus, ae = 2

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4e² = 2

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e = 1/2

Thus;

a = 4 × 1/2

a = 2

Since c² = b² - a²;

2² = b² - 2²

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b² = 8

From (x²/a²) + (y²/b²) = 1, we can put our values to get;

x²/4 + y²/8 = 1

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2 years ago

Write an equation that expresses the following relationship. p varies directly with d and inversely with the square root of u In

NARA [144]

<span>The equation given as p varies directly with d and inversely with the square root of u is written as:
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p = k1d
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Thus,
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2 years ago

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Haha this one is the exactly why

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