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Gnom [1K]
3 years ago
8

2x-3y=4 x+3y=29 A. ( - 11, 3) B. (11, - 3) C. (3, 11) D. (11, 3)

Mathematics
2 answers:
polet [3.4K]3 years ago
4 0

Answer:

(11, 6)

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>

2x - 3y = 4

x + 3y = 29

<u>Step 2: Rewrite systems</u>

2x - 3y = 4

x = 29 - 3y

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

  1. Substitute in <em>x</em>:                    2(29 - 3y) - 3y = 4
  2. Distribute 2:                        58 - 6y - 3y = 4
  3. Combine like terms:           58 - 9y = 4
  4. Isolate <em>y</em> term:                     -9y = -54
  5. Isolate <em>y</em>:                              y = 6

<u>Step 4: Solve for </u><em><u>x</u></em>

  1. Define:                         x + 3y = 29
  2. Substitute in <em>y</em>:            x + 3(6) = 29
  3. Multiply:                       x + 18 = 29
  4. Isolate <em>x</em>:                      x = 11

<u>Step 5: Check</u>

<em>Graph the systems of equations to verify the solution set.</em>

ValentinkaMS [17]3 years ago
3 0

Answer:

Step-by-step explanation:

2x-3y=4 x+3y=29

Hmmm I got (11,6) and I did it two different ways. Are these the only answers?

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a ladder 6m long leans against the wall of house if the foot of the ladder makes an angle 58 degree with tye ground how far is t
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Answer:

The base of the ladder is 3.2 meters far from the wall.

Step-by-step explanation:

We need to calculate the base of a right triangle. The given information is:

h: hypotenuse = length of the ladder = 6 m      

b: is the base =?

θ: is the angle between the hypotenuse and the base = 58°

To find the base we can use the following trigonometric equation:

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b = cos(\theta)*h = cos(58)*6 = 3.2 m

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I hope it helps you!

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As per the reference document attached thereby along with the question statement, if (∠SOX = 160°), [∠1 = (x + 14)], and [∠2 = (3x – 10)], then the measure of ∠2 in degrees will be 113°

As per the reference document attached thereby along with the question statement, (∠SOX = 160°), and it's constituent angles

[∠1 = ∠SOW = (x + 14)], and [∠2 = ∠WOX = (3x – 10)],

And we are required to determine the measure of ∠2.

Since, [(∠SOW + ∠WOX) = ∠SOX],

Therefore, [{(x + 14) + (3x – 10)} = 160°]

Or, [{(x + 3x) + (14 - 10)} = 160°]

Or, [(4x - 4) = 160°]

Or, [4x = (160 + 4)°]

Or, (4x = 164°)

Or, [x = (164/4)°]

Or, (x = 41°)

Or, [(3x – 10) = {(3 * 41) - 10}°]

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Or, (∠2 = 113°)

That is, if (∠SOX = 160°), and it's constituent angles (∠1) and (∠2) measure as [∠1 = ∠SOW = (x + 14)], and [∠2 = ∠WOX = (3x – 10)], then the measure of ∠2 in degrees will be 113°

To learn more about Measures in Degrees, click on the link below.

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