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2 years ago

HELP WILL GIVE 50+ POINTS TO THE FIRST PERSON TO ANSWER PLZ HELP EXPLAIN IT ALL!!!!!!!!

Mathematics

1 answer:

Bogdan [553]2 years ago

3 0

No picture of the question

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If f(x) =x/2 -3 and g(x) = 4x^2+ x-4, find( f + g )(x)

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$f(x)=\dfrac{x}{2}-3=\dfrac{1}{2}x-3\\\\g(x)=4x^2+x-4\\\\(f+g)(x)=f(x)+g(x)\\\\(f+g)(x)=\left(\dfrac{1}{2}x-3\right)+(4x^2+x-4)=4x^2+1\dfrac{1}{2}x-7$

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3 years ago

According to the graph, what is the value of the constant in the equation

love history [14]

Answer:

The value of the constant is 3

Step-by-step explanation:

Let

y ----> the height

x ----> the width

we have

$y=kx$

This is the equation of a linear direct variation

The equation of the line passes through the origin

we have the points

(0.5,1.5), (2,6) and (3,9)

see the attached figure to better understand the problem

Find the value of the constant of proportionality k

$k=\frac{y}{x}$

For (0.5,1.5) ----> $k=\frac{1.5}{0.5}=3$

For (2,6) ----> $k=\frac{6}{2}=3$

For (3,9) ----> $k=\frac{9}{3}=3$

therefore

The value of k is equal to 3

The linear equation is

$y=3x$

$Height=3Width$

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3 years ago

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That's easy to do, do I want me to give u the answer

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3 years ago

What is an rational number

Dafna1 [17]

A rational number is a number that can be written into a fraction. pi, some square roots, e, etc. are irrational numbers(opposite of rational numbers)(numbers that cannot be written into a fraction).

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When rounded off then it comes
382.2-297.3=84.9

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