3 years ago

What is the domain and range of the set of order pairs? (7,3),(-2,-2),(4,1),(-9,0),(0,7)

Mathematics

1 answer:

erastovalidia [21]3 years ago

5 0

Answer:

Domain {7,-2,4,-9,0} Range {3,-2,1,0,7}

Step-by-step explanation:

Just remember that domain is the x values and the range is the y values.

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Identify the ellipses, represented by equations, whose eccentricities are less than 0.5

ozzi

Answer:

See explanation

Step-by-step explanation:

Hello, we cannot see the ellipse equations.

The eccentric of an ellipse is given by:

$e = \frac{c}{a}$

Assuming the equations are:

$\frac{ {x}^{2} }{25} + \frac{ {y}^{2} }{16} = 1$

Then a²=25 and b²=16

${c}^{2} = {a}^{2} - {b}^{2}$

${c}^{2} = 25 - 16$

${c}^{2} = {3}^{2}$

$c = 3$

The eccentricity is:

$e = \frac{3}{5} = 0.6$

If the ellipse has equation,

$\frac{ {x}^{2} }{ {5}^{2} } + \frac{ {y}^{2} }{ {3}^{2} } = 1$

then the this time, we have a=5 and b=3.

This means that:

${c}^{2} = {a}^{2} - {b}^{2}$

${c}^{2} = {5}^{2} - {3}^{2}$

${c}^{2} = {4}^{2}$

$c = 4$

$c = \frac{4}{5} = 0.8$

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3 years ago

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Solve equation r/3-4=11 r = 45 r = 35 r = 33 r = 28

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Answer:

r=-11

Step-by-step explanation:

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2 years ago

Add the sum and difference identities for sin x to derive 1/2 [sin(x+y)+sin(x-y)]=sin x cos y

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Answer:

true

Step-by-step explanation:

1/2 (sin(x+y)+sin(x-y))

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The expression is true.

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Answer:

Bruh the answer is there so uh yea

Step-by-step explanation:bruh sorry for being a little rude.

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