Open Question: 3x +y^2 = 4. Is the graph of a function? True or False. Please help!!!!!!!!!?

y² = 4 - 3x
y = v(4 - 3x)

? Every element in X is related to Y
& No element in X has two or more relationships

Statement is TRUE.


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Open Question: Calculate the visual angle (in degrees) for each of the following stimuli.?

Please tell me the formulas to each so that I learn them and can get the correct answers:
Calculate the visual angle (in degrees) for each of the following stimuli.

A person whose height is 2 m, standing 100 m away (m = meters).

The same person standing 200 m away.

A child whose height is 1 m, viewed from 100 m.

The same child viewed from 50 m.


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Open Question: Determining if a function is even, odd, or neither?

you just need to answer the question of whether
f(-x)= - f(x) if so then odd;
f(-x)=f(x) if so then even
otherwise neither

Here f(-x)=1/(-2x)= - 1/2x = - f(x); so odd


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Open Question: f(x)=3x-1 and g(x)=(x+1)/(3) are inverses of eache other? true or false?

PLEASE HELP!!!

f(x)=3x-1 and g(x)=(x+1)/(3) are inverses of eache other? true or false?????

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Open Question: 6a^2b + 9ab^2? maths revision please help?

Factor out the common factor of (3ab)

3ab(2a + 3b)

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Open Question: Calculate the distance or size (in meters) of each of the following objects:?

Please tell me the formulas so that I can learn how to do the following calculations:

Calculate the distance or size (in meters) of each of the following objects:

What is the height of a person standing 100 m away, whose visual angle is 1 deg?

What is the viewing distance if a coin that is 2 cm in diameter and forms a visual angle
of 2 deg?


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Open Question: Exponents, help me please!?

(3x^-2*y)^3*(2x)^4
-------------------------
6^3*y^2

Why is the answer 2y/x^2 and not 2x^-2y?

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