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n200080 [17]
3 years ago
7

Which of the following has six faces?

Mathematics
1 answer:
Goryan [66]3 years ago
7 0

Answer:

D

Step-by-step explanation:

Hexa means six, so a hexahedron is a figure with six faces. Therefore, choice D is the correct answer.

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Please help me! i really need it:( <br>this is geometry btw​
loris [4]

Answer:

The answer is A

Step-by-step explanation:

I solved using surface area

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3 years ago
Given that √3  = 1.7321 , find correct to 3 places of decimals , the value of √192 - 1 / 2√48 - √75​
Flauer [41]

Step-by-step explanation:

the value of root three is given already so the question is asking you to round it of to the nearest 1000 which means there should be three numbers after the decimal point.

3 0
2 years ago
(secx)dy/dx=e^(y+sinx), please help me solve the differential equation. Thanks :)
nalin [4]
First, you must know these formula  d(e^f(x) = f'(x)e^x dx, e^a+b=e^a.e^b, and d(sinx) = cosxdx, secx = 1/ cosx

(secx)dy/dx=e^(y+sinx), implies  <span>dy/dx=cosx .e^(y+sinx), and then 
</span>dy=cosx .e^(y+sinx).dx, integdy=integ(cosx .e^(y+sinx).dx, equivalent of 
integdy=integ(cosx .e^y.e^sinx)dx, integdy=e^y.integ.(cosx e^sinx)dx, but we know that   d(e^sinx) =cosx e^sinx dx,
so integ.d(e^sinx) =integ.cosx e^sinx dx,
and e^sinx + C=integ.cosx e^sinxdx
 finally, integdy=e^y.integ.(cosx e^sinx)dx=e^2. (e^sinx) +C
the answer is 
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7 0
3 years ago
Read 2 more answers
Express cos(27pi/8) as a trigonometric function of an angle in Quadrant I.
Kryger [21]

Answer:

The equivalent trigonometric ratio in Quadrant I is -\cos (\frac{3\pi}{8})

Step-by-step explanation:

The terminal side of \frac{27\pi}{8} is in the 3rd quadrant.

The principal angle is \frac{3\pi}{8}

In other words, the terminal side of \frac{27\pi}{8}  makes an acute angle of \frac{3\pi}{8} radian with the positive x-axis. Acute angles are in the first quadrant.

Since the cosine ratio is negative in the 3rd quadrant,

\cos (\frac{27\pi}{8})=-\cos (\frac{3\pi}{8})

3 0
3 years ago
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Usando a notação de conjuntos escreva os intervalos .<br> [6,10]
frez [133]
Hola mi amigoMira esto es muy servicial!!!
https://youtu.be/UJQkqV2zGv0
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3 years ago
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