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VARVARA [1.3K]
3 years ago
15

Someone pls help me I will make you brain

Mathematics
2 answers:
Pani-rosa [81]3 years ago
4 0
The last one you just have to plug 1 and 3 into the given equation
Vikentia [17]3 years ago
3 0

It cannot be compared, so answer 3 :)

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AysviL [449]
True A im pretty sure
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4. What is the volume of the cereal box?<br> cereal<br> 18 in<br> 3 in<br> 12 in<br> 135
marusya05 [52]

Answer:

12 in

Step-by-step explanation:

i don't know, you didn't show me the picture.

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Find NMC triangle's perimeter if BO:BK=1:3 and ABC triangle's perimeter is 96
Citrus2011 [14]

Answer:

  80

Step-by-step explanation:

If we assume the triangles are similar and are isosceles, and that BK is an altitude, then we can work the problem.

Triangle OKN will be similar to triangle BKA, so ...

  AN : AK = BO : BK = 1 : 3

Then ...

  AN : AK : KC = 1 : 3 : 3

In terms of ratio units, ...

  AN = 1

  AC = 3+3 = 6

  NC = 6-1 = 5

This means NC : AC = 5 : 6. The triangle perimeters will have the same ratio.

  perimeter(NMC) = 5/6·perimeter(ABC) = 5/6·96

  perimeter(NMC) = 80

3 0
3 years ago
10.) Find the exact value of cos⁡(2 sin^(−1)⁡(3/5) ). Do not use a calculator and show your work!
Talja [164]
Double angle identity for cosine:

\cos\left(2\sin^{-1}\dfrac35\right)=\cos^2\left(\sin^{-1}\dfrac35\right)-\sin^2\left(\sin^{-1}\dfrac35\right)

By the Pythagorean theorem, if \sin x=\dfrac35, it follows that \cos x=\dfrac45:

\cos^2x+\sin^2x=1\implies \cos x=\pm\sqrt{1-\sin^2x}

where we take the positive root because -\dfrac\pi2\le\sin^{-1}x\le\dfrac\pi2, and \cos x is non-negative throughout this domain.

So we have

\cos^2\left(\sin^{-1}\dfrac35\right)-\sin^2\left(\sin^{-1}\dfrac35\right)=\left(\dfrac45\right)^2-\left(\dfrac35\right)^2=\dfrac7{25}
3 0
3 years ago
A. Arrange the following integers in ascending order.
Novay_Z [31]

Answer:

25,37,41,76,-2

-88,4,6,91,93,-15

-42,8,12,16,24,38

21,28,32,48,-5,92

3,6,10,12,16,21

explanation:

ascending order means arrange it from smallest to largest!!

7 0
3 years ago
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