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Vesnalui [34]
3 years ago
5

NEED HELP AND NEED TO SHOW WORK

Mathematics
1 answer:
Olin [163]3 years ago
7 0

Answer:

f(-2) = 0

f(1) = 12

(x^3 - 7x - 6) / (x + 2) = x^2 - 2·x - 3 = (x - 3)(x + 1)

x^3 - 7x - 6 = (x + 2)(x - 3)(x + 1)

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Factor y=x Squared-8x
Minchanka [31]
X²-8x
factor out x
x(x-8)
y=x(x-8)
6 0
3 years ago
The area of a regular octagon is 35 cm 2 what is the area of a regular octagon with sides three times as large
Maurinko [17]
The area of a polygon = n*side^2 / (4 * tan(180/n))
where "n" is the number of sides

Let's calculate area for side = 2
area = 8*2^2 / (4 * tan(180/8))
area = 32 / (4 * tan(22.5))
area = 32 / 4*0.41421
<span> <span> <span> area = 19.3138746047 </span> </span> </span>

Now, let's calculate area for side = 6
area = 8*6^2 / (4 * tan(180/8))
area = 288 / <span> <span> <span> 1.65684 </span> </span> </span>
area = <span> <span> <span> 173.824871442 </span> </span> </span>

<span> <span> 173.824871442 </span> / </span><span><span>19.3138746047 = </span> 9

So, the area would be 9 times larger.

ALSO, looking at the formula
</span>n*side^2 / (4 * tan(180/n))
we can see that the side length appears just once in the formula and we are to square it in the calculation.  So, if we increase the side length is increased by 3, then the area increases by 3^2 or 9.


5 0
3 years ago
Can Someone explain how to do this?
zheka24 [161]
1 equals 2. So 2 would be 50 as well.
50+50=100
And there's 360 degrees in total so you'd then subtract 360-100= 260
Then divide by 2 since the other 2 angles are the same
260/2=130
1=50
2=130
3=130
Hope this makes sense! :)
6 0
2 years ago
What is the area of this circle? (Express your answer using π.)<br> (Note: The diameter is 6 m.)
Irina-Kira [14]


TT = 3.14


The answer is 37.68 if TT is 3.14

8 0
2 years ago
Read 2 more answers
I need help on this asap, I'm giving 39 POINTS and mark BRAINLIEST the question is on the pic! thankss
shtirl [24]
Answer: I’m pretty sure it’s c also
3 0
2 years ago
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