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Nikolay [14]
2 years ago
9

The radius of a circle is 3.5 m. Find the circumference to the nearest tenth.

Mathematics
2 answers:
Juli2301 [7.4K]2 years ago
5 0

Answer:

22

Step-by-step explanation:

yes

JulsSmile [24]2 years ago
4 0

Answer:

21.99 but you have to round it

Step-by-step explanation:

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When the number of bricks is multiplied by 2 the length is multiplied by
kozerog [31]
2  ? That seems the most logical answer
3 0
3 years ago
Bob says that when he multiplies (x+3) (x-3) he gets x^2-6x-9 is he correct explain
almond37 [142]
(x+3)(x-3)
x*x=x^2
x*-3=-3x
3*x=3x
3*-3=-9

where’s where he most likely messed up
x^2-3x+3x-9

the correct answer is x^-9
5 0
3 years ago
0.8 is 10 times as great as wich decimal?
cestrela7 [59]
I don't know what to say, I've been trying to explain this for like... 10 minutes but I can't think of how to explain it. All I can say is to just divide .8 by 10. The answer is .08.
6 0
3 years ago
(cosxtanx-tanx+2cosx-2)/tanx+2=cosx-1<br> can someone show me how to prove this?
uysha [10]

Answer:

See detail below.

Step-by-step explanation:

A word of caution before getting to the actual problem: I believe there is an important set of brackets missing in the original post. The expression on the left hand side should be:

(cosxtanx-tanx+2cosx-2)/(tanx+2)

Without the brackets, it is left unclear whether the denominator is just tanx or tanx+2. I recommend to use brackets wherever any doubt could arise.

Now to the actual problem: \we can make the following transformations on the left hand side:

\frac{\cos x \tan x + 2\cos x -2}{\tan x +2}=\frac{\cos x \frac{\sin x}{\cos x}  + 2\cos x -2}{\frac{\sin x +2\sin x}{\cos x} }=\\=\frac{\cos x \sin x - \sin x + 2\cos^2 x - 2\cos x}{\sin x + 2\cos x}=\\=\frac{\cos x \sin x +2\cos^2 x }{\sin x + 2\cos x}-1=\\=\cos x -1

which is shown to be the same as the right hand side, which was to be shown.

7 0
3 years ago
SOMEONE PLEASE HELP ME
storchak [24]

Answer:

     

Step-by-step explanation:

4 0
3 years ago
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