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maks197457 [2]
2 years ago
9

Guys I wouldn't be asking if I had absolutely no clue on how to solve this but I am so please please help me!!!!

Mathematics
1 answer:
nalin [4]2 years ago
8 0

Its simple, so these are two "y=mx+b" form lines that are limited by the signs on the right. Your first line f(x)=-x-4 has to be between -3 and 1 on the x-axis.

You would plot a point at (0,-4) like normal, then go down one, right one as the slope is -1. you would make the dot at 1 though unfilled as x does not equal to 1. It is less than 1.  º Should look like the dot I just inserted.

The second line would be plotted, at (0,-6). You would then make a horizontal line between 1 and 5. º-------• (Should look like this)

       

IMPORTANT:

FILLED DOT - EQUAL TO

UNFILLED DOT - Not equal to

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What is the axis of symmetry of the function f(x)=-(x+9)(x-21)
Firlakuza [10]
Carry out the mult.:  f(x) = -[x^2 - 21x + 9x - 189] 

Combine like terms:  f(x) = -[x^2 - 12x - 189]
Eliminate the brackets [   ]:      f(x) = -x^2 + 12x + 189
Identify coefficients a, b and c:   a= -1, b=12, c=189

The equation of the axis of symmetry is    x = -b/(2a), which here equals

x = -(12)/[2(-1)], or     x = 6

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3 years ago
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Answer:

I believe the answer is c. but I'm not too sure.

Step-by-step explanation:

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5 0
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Read 2 more answers
The volume of a gift box is 972 in. The height of the gift box is 12 inches
Serggg [28]

Answer:

The length of each side of the 9 in

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Recall that, the area of a square is

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PLZ HELP!!! WILL GIVE HIGHEST POINTS IF THE ANSWER IS RIGHT!!
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Step-by-step explanation:

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