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mezya [45]
3 years ago
11

Are (-2,4), (2,4), (4,2), (-2,-4) a function?

Mathematics
1 answer:
lions [1.4K]3 years ago
3 0

Answer:

Yes

Step-by-step explanation:

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Convert -0.0647 to Scientific Notation
Firlakuza [10]

Answer:

6.47  x  10^-2

Step-by-step explanation:

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The isosceles triangle has a perimeter of 7.5 m
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Option 4: 2.1 + 2x = 7.5
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Multiply. Write your answer as a fraction or as a whole or mixed number.
I am Lyosha [343]
Answer:
4 1/6

5 x 5 = 25
6 x 1 = 6
Simplify
25/6 = 4 1/6
4 0
2 years ago
-3(u+2)=5u-1+5(2u+1)
Mazyrski [523]

Answer:

u = -5/9

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Order of Operations: BPEMDAS
  • Equality Properties

Step-by-step explanation:

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

-3(u + 2) = 5u - 1 + 5(2u + 1)

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

  1. Distribute:                             -3u - 6 = 5u - 1 + 10u + 5
  2. Combine like terms:             -3u - 6 = 15u + 4
  3. Add 3u to both sides:          -6 = 18u + 4
  4. Subtract 4 on both sides:    -10 = 18u
  5. Divide 18 on both sides:      -10/18 = u
  6. Simplify:                                -5/9 = u
  7. Rewrite:                                 u = -5/9

<u>Step 3: Check</u>

<em>Plug in u into the original equation to verify it's a solution.</em>

  1. Substitute in <em>u</em>:                     -3(-5/9 + 2) = 5(-5/9) - 1 + 5(2(-5/9) + 1)
  2. Multiply:                                -3(-5/9 + 2) = -25/9 - 1 + 5(-10/9 + 1)
  3. Add:                                      -3(13/9) = -25/9 - 1 + 5(-1/9)
  4. Multiply:                                -13/3 = -25/9 - 1 - 5/9
  5. Subtract:                               -13/3 = -34/9 - 5/9
  6. Subtract:                               -13/3 = -13/3

Here we see that -13/3 does indeed equal -13/3.

∴ u = -5/9 is a solution of the equation.

3 0
3 years ago
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Select "ALL" statements that correctly describe the graph!!
larisa86 [58]

Answer:

  • The slope is 1/2
  • The equation that represents this function is x -2y = 2

Step-by-step explanation:

<em>Intercepts</em>

The table shows the x-intercept to be (2, 0), and the y-intercept to be (0, -1). These are not matched by any of the answer choices.

<em>Slope</em>

The slope is ...

  slope = (change in y)/(change in x) = (0 -(-1))/(2 -0) = 1/2

<em>Equation</em>

You can choose the equation by seeing if it works for a couple of points. You know the last equation is incorrect, because that slope-intercept form has the y-intercept as +1, not -1.

6 0
3 years ago
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