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dem82 [27]
4 years ago
5

(-4y^3-5y+16)+(4y^2-y+9)

Mathematics
1 answer:
cricket20 [7]4 years ago
6 0

Answer:

-4y^3 + 4y^2 -6y + 25

Step-by-step explanation:

Combine like terms.

    (-4y^3-5y+16)

 +    (4y^2 - y +9)

----------------------------

-4y^3 + 4y^2 -6y + 25

Please mark as Brainliest! :)

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4/7=28/(x+18)

4/7 =28/x+18
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__________
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*28      | *28
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4 years ago
Help me plz quick my phone about to die
konstantin123 [22]
I'll do the first graph.

We can easily find the y intercept by inputting 0 for x.

y = -2(0) + 7
y = 7

The y-intercept is (0, 7)

To find the x intercept, isolate x.

y = -2x + 7
Add 2x to both sides.
2x + y = 7
Subtract y from both sides.
2x = -y + 7
Divide by 2 on both sides.
x = -1/2y + 3.5

Input 0 for y.

x = -1/2(0) + 3.5
x = 3.5

The x intercept is (3.5, 0)

Now try the rest own your own! :)
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4 years ago
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kodGreya [7K]

Answer:

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Step-by-step explanation: so chicken

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4 years ago
Draw a line graph that represents the relationship between mass and kinetic energy in Experiment 2. Make sure to give the graph
Leya [2.2K]

The linear function that maps the relation between kinetic energy and mass is given at the end of the question.

<h3>What is the kinetic energy of an object?</h3>

The kinetic energy of an object is given by the following formula:

E = 0.5mv².

In which:

  • m is the mass of the object.
  • v is the velocity of the object.

In this problem, we suppose a velocity of 2.5 m/s, hence the kinetic energy is:

E = 0.5m(2.5)² = 3.125m.

Hence the graph is plotted at the end of the answer.

More can be learned about kinetic energy at brainly.com/question/25959744

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nignag [31]
Can you add a picture?
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