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stiks02 [169]
3 years ago
7

Value of x (6x+2)° (5x+22)°

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

Answer:

x=20°

Step-by-step explanation:

(6x+2)° and (5x+22)° are vertically opposite angles, hence VOA angles are equal so

(6x+2)°=(5x+22)°

6x°+2°=5x°+22°.... collect the like terms

6x°-5x°=22°-2°

x°=20°

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Answer:

C.

Step-by-step explanation:

The answer is C

8 0
3 years ago
One operator is holding a laser pointer at a height of 9 feet whose beam is reflected on a horizontal reflecting surface at a po
lutik1710 [3]

Answer:

The height (in feet) at which the laser will impact the wall is 6.75 feet

Step-by-step explanation:

The given parameters are;

The height from which the laser beam operator is holding the laser = 9 feet

The horizontal distance away from the pointer the beam is reflected = 8 feet

Given that we have;

f(x) = \dfrac{9}{8} \times \left | x - 8\right | = y

When x = 8, the point of reflection, the height, f(x) is given as follows;

f(x) = \dfrac{9}{8} \times \left | 8 - 8\right | = 0

When x = 7, the point of reflection, the height, f(x) is given as follows;

f(x) = \dfrac{9}{8} \times \left | 7 - 8\right | = \dfrac{9}{8}

Therefore, given that the point of reflection is at an elevation of 0 relative to the 9 feet of the laser source (pointer), by tan rule, we have;

tan(\theta) = \dfrac{Opposite \ side}{Adjacent \ side} =\dfrac{9}{8} = \dfrac{h}{7}

Where;

h = The height at which the laser meets the wall

h = \dfrac{9 \times  7}{8} =7.875

Given that the wall the laser meets is at the point x with elevation 9/8, the height, y, at which the laser meets the wall is therefore;

y = \dfrac{9 \times  7}{8} - \dfrac{9}{8} = \dfrac{54}{8} = 6.75 \ feet

The height (in feet) at which the laser will impact the wall = 6.75 feet.

7 0
3 years ago
Someone please help me. I don't have a pen and paper to work this out
earnstyle [38]
I hope this helps you





5 0
3 years ago
Read 2 more answers
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ozzi

Answer:

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Step-by-step explanation:

Well, using FOIL you can put an polynomial in standard form.

4 0
3 years ago
Georg invests $5000 for 14 years at a rate of 2% per year compound interest.
Rufina [12.5K]

Answer:

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Step-by-step explanation:

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or

reduce it to faction like

<h2>\frac{2}{100} = \frac{1}{50}</h2>
8 0
3 years ago
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