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padilas [110]
4 years ago
6

-3x + 2y= -3, y= 4x + 1

Mathematics
1 answer:
Darina [25.2K]4 years ago
5 0
-3x+2y=-3
(y-4x=1)x2
-3x+2y-2y+8x=-5
5x=-5
x=-1
-3x+2y=-3
-3(-1)+2y=-3
2y=-6
y=-3
So you answers are X=-1, Y=-3

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Alja [10]
The answer would be 60. This is because 480/8=60. 
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3 years ago
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What fraction is equal to −0.37¯¯¯¯¯?
Alexandra [31]

Answer: -37/100

Step-by-step explanation:

<u>Given </u>

-0.37

<u>Convert to division form (Any division that can get -0.37)</u>

-37 ÷ 100

<u>Convert to fraction</u>

\boxed{-\frac{37}{100} }

<u>Finally, always make sure the final fraction is no longer divisible.</u>

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3 years ago
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An FM radio station broadcasts at 98 MHz. what is the energy of each photon in Joule? Use h= 6.6 X10^-34 J*s for Planck constant
Nadya [2.5K]

Answer:

The energy of each photon is 6.468 \times 10^{-26} Joule.

Step-by-step explanation:

Consider the provided information.

According to the plank equation:

E=h\nu

Where E is the energy of photon, h is the plank constant and \nu is the frequency.

It is given that h= 6.6 \times10^{-34} and \nu=98MHz

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Substitute the respective value in plank equation.

E=6.6\times 10^{-34}\times 98\times 10^6

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E=6.468 \times 10^{-26}

Hence, the energy of each photon is 6.468 \times 10^{-26} Joule.

7 0
3 years ago
Drag and drop the correct surface area to match the cube. cube with edge length = 3.2 m 12.8 m²19.2 m²51.2 m²61.44 m²
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3 0
4 years ago
Please heeeeeeeeelp! Ill give brainliest!
Alinara [238K]

Step-by-step explanation:

ok so as u know the angles of a triangle add up to 180.

So we will be using that for help.

S+R+T=180

12x+13x+12x-4+2-3=180

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Hope this helped:)

8 0
3 years ago
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