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Lelu [443]
3 years ago
15

Solve K = 1/2 mv^2 for m

Mathematics
1 answer:
Dahasolnce [82]3 years ago
4 0

Answer:m=2k/v^2

Step-by-step explanation:

The first thing you should do is divide 1/2 on both sides. Now you have 2k=mv^2. Then divide v^2 from each side and you get a final answer of (2k/v^2)=m

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Answer:

the second one

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5 0
3 years ago
Find the solution of the system by graphing
zvonat [6]

Answer:

x = -2

y = -1

(-2, -1)

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Order of Operations: BPEMDAS
  • Equality Properties

<u>Algebra I</u>

  • Solving systems of equations using substitution/elimination
  • Solving systems of equations by graphing

Step-by-step explanation:

<u>Step 1: Define systems</u>

y = x + 1

3x + 3y = -9

<u>Step 2: Solve for </u><em><u>x</u></em>

<em>Substitution</em>

  1. Substitute in <em>y</em>:                              3x + 3(x + 1) = -9
  2. Distribute 3:                                   3x + 3x + 3 = -9
  3. Combine like terms:                     6x + 3 = -9
  4. Isolate <em>x</em> term:                               6x = -12
  5. Isolate <em>x</em>:                                        x = -2

<u>Step 3: Solve for </u><em><u>y</u></em>

  1. Define original equation:                    y = x + 1
  2. Substitute in <em>x</em>:                                     y = -2 + 1
  3. Add:                                                      y = -1

<u>Step 4: Graph systems</u>

<em>Check the solution set.</em>

6 0
3 years ago
2(x-5)=10 but the pemdas is backwards
ale4655 [162]

Answer:

2 (x-5) = 10

2x-10 = 10

2x = 10 + 10

x = 20/2

x = 10

Step-by-step explanation:

8 0
3 years ago
Can someone help with this question?
ivann1987 [24]

You solve an expression for a variable if that variable sits alone on one side of the equation, and everything else is on the other side.

So, our goal is to leave h alone on the right hand side, and move everything else to the left.

So, we start with

V = \dfrac{1}{3}s^2h

We multiply both sides by 3:

3V = s^2h

We divide both sides by s^2

\dfrac{3V}{s^2} = h

To compute the required height, simply plug in the values:

\dfrac{3\cdot 400}{10^2} = \dfrac{3\cdot 400}{100} = 3\cdot 4 = 12

3 0
3 years ago
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The temperature outside is 0 degrees F. If the temperature drops 14 degrees, what was the overnight low temperature?
Tcecarenko [31]
It would be -14 degrees 
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3 years ago
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