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3 years ago

Unit 8 triangles and trigonometry quiz 8-2 please help me with all

Mathematics

1 answer:

Sedbober [7]3 years ago

5 0

Answer:

i think 6

Step-by-step explanation:

hope this helps

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If x > 1, then which of the following has the LEAST value?

jasenka [17]

What are the answers?

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3 years ago

What type of conic section is given by the equation y^2-9x^2=900 and what is the domain and range? Show your work.

Alika [10]

Answer:

Domain : x ∈ Real Numbers

Range : y ≥ 30

Step-by-step explanation:

The given equation is:

$y^2-9x^2=900$

Simplifying it

$\frac{y^2}{900}-\frac{9x^2}{900}=\frac{900}{900}\\\frac{y^2}{900}-\frac{x^2}{100}=1\\\frac{y^2}{30^2}-\frac{x^2}{10^2}=1$

Where Standard equation of parabola is:

$\frac{y^2}{a^2}-\frac{x^2}{b^2}=1$

Which are similar. Conic Section is a parabola.

<h3>Find Domain and Range:</h3>

Simplify the given equation:

$y^2-9x^2=900\\y=\sqrt{9x^2+900},y=-\sqrt{9x^2+900}\\y=3\sqrt{x^2+100},y=-3\sqrt{x^2+100}$

For whatever value of x, term under the square root always remains positive, so

Domain : x ∈ Real Numbers

For minimum value of x i.e 0, y=30. If we increase x, y also increases. So

Range : y ≥ 30

8 0

3 years ago

Pls, can someone help ??

guapka [62]

Answer:

is that the answer you want?

8 0

3 years ago

The table below shows the air temperature in degrees Celsius at different altitudes in kilometers:

anygoal [31]

Answer: The third graph.

The difference between temperatures for every increase (1km) in altitude is consistent (6.5), meaning that it is a straight line.

Then, you would have to match the x and y values on the charts to the coordinates on the graph. Ex: (8.5, 1), (2, 2), (-4.5, 3) etc.

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3 years ago

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10 Points!

marta [7]

Step-by-step explanation:

start with the point (0, 4) for each square go right one, then up two squares.

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3 years ago

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