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2 years ago

15

HELP THIS IS DUE RIGHT NOWWWWWWW

1 answer:

defon2 years ago

7 0

Step-by-step explanation:

5x

2x

3x

and I believe the last one is 3 over 4x

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For f(x)=1/x^2-3, find<br> a) f(3)<br> b) f(2+h)<br> Show/explain work

valentina_108 [34]

$f(x)=\dfrac{1}{x^2-3}\\\\a)\ f(3)\to\text{put x=3 to the equation of the function f}\\\\f(3)=\dfrac{1}{3^2-3}=\dfrac{1}{9-3}=\dfrac{1}{6}\\\\Answer:\ \boxed{f(3)=\dfrac{1}{6}}\\\\b)\ f(2+h)\to\text{put x=2+h to the equation of a function f}\\\\f(2+h)=\dfrac{1}{(2+h)^2-3}\ \ \ |\text{use}\ (a+b)^2=a^2+2ab+b^2\\\\=\dfrac{1}{2^2+2(2)(h)+h^2-3}=\dfrac{1}{4+4h+h^2-3}=\dfrac{1}{h^2+4h+1}\\\\Answer:\ \boxed{f(2+h)=\dfrac{1}{h^2+4h+1}}$

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3 years ago

Which answers choice shows that the set of irrational numbers is not closed under addition?

babunello [35]

Problably A !!!!!!!!!!!

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2 years ago

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–3 ÷ 1 = –3 What property is shown in the equation?

Pavlova-9 [17]

It is B identity property of division. Because you are dividing by one and that is a part of what the identity property of division.

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To be able to do the problem 5(10 + 4) mentally, Zack does 50 + 20 instead of 5(14).

Eddi Din [679]

Answer:

1. Distributive

Step-by-step explanation:

This is because you multiply the number outside the parentheses into the numbers inside the parentheses.

Hope it helped.

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sashaice [31]

Answer:

If its a line withe 8x as one of the factors in the mx position of y=mx+b then its parrallel

Step-by-step explanation: Hopeit helped

For example y=8x+2y is parallel to y=8x+3y

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