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Dennis_Churaev [7]
3 years ago
11

Can someone please help me​

Mathematics
2 answers:
Taya2010 [7]3 years ago
6 0
I believe it is B from what I did
balandron [24]3 years ago
4 0

Answer:

3\sqrt{15\\}

Step-by-step explanation:

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kvasek [131]
Πr^2=area 9=r 9^2=81π=254.47
7 0
3 years ago
4{[5 (x-3)+2]-3 [2 (x+5)-9]}
Over [174]
Pemdas
parenthasees exponents mult/division additon/subtraction

parethenasees
x-3 and x+5 we can't do anything with so next
5(x-3)=5x-15

2(x+5)=2x+10

5x-15+2=5x-13

(2x+10-9)=2x+1

(5x-13)-3(2x+1)
-3(2x+1)=-6x-3

5x-13-6x-3=-x-16

4(-x-16)=-4x-64

the answer is -4x-64
6 0
3 years ago
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will give brainliest The polygons are similar, but not necessarily drawn to scale. Find the value of x.
Serggg [28]

Answer:

I'm in eight grade so don't assume i'm right. But from looking at this. It looks like x-1=8 and y+1= 28. I'm only doing High School Math 1 in eight grade tho. So if i'm wrong i'm sorry

Step-by-step explanation:


3 0
3 years ago
What is the answer? Please explain.<br><br> (5x^2 -3) + (2x^2 - 3x^3)
ale4655 [162]

Answer:

(5x^2-3) +(2x^2-3x^3)

=3x^3+5x^2+2x^2-3

= 3x^3 +7x^2 -3

Step-by-step explanation:

hope this is correct cuz I'm not an expert...

5 0
3 years ago
When x=(-4), what is the value of y?
allsm [11]
You didn't give enough information to answer the question. 
7 0
3 years ago
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