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AlladinOne [14]
3 years ago
12

Please help! It's a final!!

Mathematics
1 answer:
Svetach [21]3 years ago
6 0

Answer:

BBBBBBBBBB

Step-by-step explanation:

yeah if you add 2 without parenthesis it goes up

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Write the number 2.7 x 10^-3
spayn [35]

Answer:

0.0027 -  zero-point-zero-zero-twenty-seven

Step-by-step explanation:

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3 years ago
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2z -3y + x +(-5y)-6z - 3x simplify exspression
Makovka662 [10]

Answer:

−2x−8y−4z

Hope this is what you wanted :)

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OMG PLEASE HELP! THIS ASSIFNMENT DUE IN LIKE 5 MINUTES!! (Sorry if blurry pic)
Ber [7]

Answer:

I think the 3rd answer

Step-by-step explanation:

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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
What is the surface area? 5 mm 4 mm 5 mm 6 mm 6 mm square millimeters​
mylen [45]

Answer:

6 x 4 = 24, 24 divided by 2 = 12(area of 1 triangle)

12 x 2(two triangles) = 24

5 x 6 = 30(area of 1 slanted rectangle)

30 x 2(two rectangles) = 60

6 x 6 = 36(area of bottom square)

Add all given AREAS:

24 + 60 + 60 = 144 mm2 is your answer.

8 0
3 years ago
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