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Vesnalui [34]
3 years ago
15

Cos ■ = 7/14A. 39°B. 30° C. 26.57°D. 60°​

Mathematics
1 answer:
dolphi86 [110]3 years ago
4 0

Option D:

$\cos60^\circ=\frac{7}{14}

Solution:

Given data:

$\cos -- = \frac{7}{14}

Let the unknown degree be x.

To find the degree x:

$\cos x = \frac{7}{14}

Cancel the common factor 7 in the numerator and denominator.

$\cos x = \frac{1}{2}

Using trigonometry basic formula,

we know that \cos60^\circ = \frac{1}{2}.

So, x = 60°.

The unknown degree measure is 60°.

$\cos 60^\circ= \frac{7}{14}

Hence option D is the correct answer.

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Answer:

I guess that we want to find the equation for each case.

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Horizontal translation.

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if N > 0, the translation is to the left

if N < 0, the translation is to the right.

Vertical translation:

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if N > 0, the translation is upwards

if N < 0, the translation is downwards.

Now that we know these, we can find the equations for each case:

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this is:

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y = -(x + 4)^2 - 4

5: the graph of y = -3x² is moved two units to the right

Remember that to move the graph to the right, we need to have N negative, then:

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Help plz : 4x-2(x-3)=10+(-9)
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Step-by-step explanation:

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