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2 years ago

Find the value of x with the steps

Mathematics

1 answer:

Mrrafil [7]2 years ago

4 0

Two sides are same so that would be isosceles triangle. So then you would add up all angles and get this equation: 180 = 38 + x + x

2x = 142

x = 71

So the value of x is 71.

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olga2289 [7]

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2 years ago

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BlackZzzverrR [31]

Answer:

The solution of the given trigonometric equation

$x = \frac{\pi }{6}$

Step-by-step explanation:

Step(i):-

Given

$cos( 3x - \frac{\pi }{3} ) = \frac{\sqrt{3} }{2}$

$cos( 3x - \frac{\pi }{3} ) = cos (\frac{\pi }{6} )$

$3x - \frac{\pi }{3} = \frac{\pi }{6}$

$3x - \frac{\pi }{3 } + \frac{\pi }{3} = \frac{\pi }{6} + \frac{\pi }{3}$

$3x = \frac{2\pi +\pi }{6} = \frac{3\pi }{6} = \frac{\pi }{2}$

$x = \frac{\pi }{6}$

Step(ii):-

The solution of the given trigonometric equation

$x = \frac{\pi }{6}$

verification :-

$cos( 3x - \frac{\pi }{3} ) = \frac{\sqrt{3} }{2}$

put $x = \frac{\pi }{6}$

$cos( 3(\frac{\pi }{6}) - \frac{\pi }{3} ) = \frac{\sqrt{3} }{2}$

$cos (\frac{\pi }{6} ) = \frac{\sqrt{3} }{2} \\\\\frac{\sqrt{3} }{2} = \frac{\sqrt{3} }{2}$

Both are equal

∴The solution of the given trigonometric equation

$x = \frac{\pi }{6}$

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1 year ago

I need help with math!!! time is running out!!! will mark brainliest!!!

salantis [7]

3/10
Calm down u got this;)

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2 years ago

The interquartile range is determined by the formula _________.

Elena-2011 [213]

Answer:

Step-by-step explanation:

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2 years ago

Andrew cut a rectangular piece of wood along a straight line, as shown below. K110° Andrew calculated that x = 70°. Which of the

nignag [31]

Answer:

C. Consecutive interior angles are supplementary

Step-by-step explanation:

Andrew calculated it correctly

Angles 110 and x are supplementary as consecutive interior angles

110 + x = 180
x = 180 - 110
x = 70

Correct choice is C

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2 years ago

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