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jolli1 [7]
2 years ago
12

Simplify 2 (8r2+r)-4r

Mathematics
2 answers:
Rainbow [258]2 years ago
5 0
2(8r2+r)-4r

2(17r)-4r

34r-4r

30r
taurus [48]2 years ago
4 0
16r^2+ 2r -4r 16r^2 - 2r 2r ( 8r -1)
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Please help me out with this
Ivanshal [37]

Answer:

374.1

Step-by-step explanation:

Area of Hexagon = \frac{3\sqrt{3} }{2} * a^{2}

The ' a ' is the side length.

So now we just plug in the values

\frac{3\sqrt{3} }{2} *12^{2} = 374.12

3 0
3 years ago
Identify a sequence of transformation that maps triangle ABC onto triangle A"B"C" in the image below.
Vladimir79 [104]
I'd go with: D. clockwise 90 rotation; reduction 

(Hope I helped :D
5 0
3 years ago
Read 2 more answers
Find 2 numbers a and b such that (a-b)^2 < (a+b)(a-b)< (a+b)^2 Find two numbes a and b such that this is not true
Svet_ta [14]

Suppose for the moment that the inequality holds for all a,b:

(a-b)^2

Expanding everything gives

a^2-2ab+b^2

\implies-ab

In particular, the inequality says that -ab for any choice of a,b. But if a and b>0, then -ab>0 while ab.

So one possible choice of a,b could be a=-1 and b=1. Then we get

(-1-1)^2=4

(-1+1)(-1-1)=2

(-1+1)^2=0

but clearly it's not true that 4.

8 0
3 years ago
NEED HELP ASAP
andreyandreev [35.5K]

Answer: 137.08 m tall

Step-by-step explanation:

100-77=23

596x0.23=137.08

5 0
2 years ago
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What is 9%+278.045 or 278.045+9%
rodikova [14]
The answer to this equation would be 278.135
3 0
3 years ago
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