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mariarad [96]
3 years ago
11

Solve the system of equation y= x-4 y= -x+2

Mathematics
2 answers:
amid [387]3 years ago
6 0

Answer:

x= 3, y= -1

Step-by-step explanation:

Please see the attached picture for full solution.

(Elimination method)

Aliun [14]3 years ago
5 0

Answer:

x=3

Step-by-step explanation:

x-4 =y

-x+2=y

x-4 = -x+2

2x = 6

x = 3

:D

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Convert the hexadecimal numeral to Hindu-Arabic <br> 4A9EDsixteen<br> 8
IceJOKER [234]

9514 1404 393

Answer:

  305,645 base 10

  1124755 base 8

Step-by-step explanation:

In expanded form, the number is ...

  4×16^4 +10×16^3 +9×16^2 +14×16^1 +13

  = (((4×16 +10)×16 +9)×16 +14)×16 +13 = ((74×16 +9)×16 +14)×16 +13

  = (1193×16 +14)×16 +13 = 19102×16 +13 = 305,645 base 10

_____

If you want to convert this to base 8, that is easily done by writing the binary equivalents of the hex digits, then regrouping them by 3s.

  4A9ED₁₆ = 0100 1010 1001 1110 1101₂ = 01 001 010 100 111 101 101₂

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5 0
3 years ago
NNEED HELP!! GEETSS BRAINLIEST**
sergejj [24]

Answer:

D. y=3\cos \left(\dfrac{4}{3}x-2\pi\right)+2

Step-by-step explanation:

The period of the functions y=\cos x,\ y=\sin x is 2\pi.

The period of the function y=a\cos (kx+b),\ y=a\sin(kx+b) is ALWAYS \dfrac{2\pi}{k}

In your case, you have function y=-3\sin \left(\dfrac{2}{3}x-2\pi \right)+2 and this function has the period

\dfrac{2\pi}{\dfrac{2}{3}}=3\pi.

You need to find the function that will have the period that is half of 3\pi, so

\dfrac{3\pi}{2}=\dfrac{2\pi}{k}\\ \\3k=4\\ \\k=\dfrac{4}{3}.

So, correct choice is

y=3\cos \left(\dfrac{4}{3}x-2\pi\right)+2

7 0
3 years ago
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Nana76 [90]

Answer: Two figures are said to be similar if they are the same shape. In more mathematical language, two figures are similar if their corresponding angles are congruent , and the ratios of the lengths of their corresponding sides are equal.

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
4x + 12 = -7y<br> -y + 12 = 4x<br> Solve with elimination
statuscvo [17]
Take the second equation and flip it around so the y on the left ends up on the right and the 4x on the right ends up on the left.  This makes all negatives positive and all positives negative.   -4x   + 12  = y 

Then add the first equation to the second equation 
4x   +12   = -7y
<u>-4x   + 12  </u>=<u> y </u>   this eliminates the x's
          <u>24</u> = -<u> 6y</u>            then divide by - 6
           - 6     - 6
         - 4    = y<u>

</u>So if you know that y = negative 4, you can substitute into either equation.  I pick the second one because I am a lazy person.  
  -y  + 12  = 4 x
-(-4) + 12 = 4 x     combine your numbers<u>
</u>   <u>  16     </u> = <u>4 x  </u>      then divide by 4<u>
</u>       4      =  x
So your solution is: x = 4 and y = -4 or this is also written (4, -4)

Does that work for you?
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4 years ago
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tatyana61 [14]
The answer is Negative 38

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4 years ago
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