I NEED HELP !!!!!!!!!!!!!

Mathematics

1 answer:

Lerok [7]3 years ago

3 0

$\boxed{\sf tan\Theta=\dfrac{P}{B}}$

$\\ \sf\longmapsto tan\Theta=\dfrac{13}{46}$

$\\ \sf\longmapsto tan\theta=0.2$

$\\ \sf\longmapsto tan\theta=\dfrac{\sqrt{3}}{6}$

$\\ \sf\longmapsto 3tan\theta=tan60$

$\\ \sf\longmapsto \theta=\dfrac{60}{3}$

$\\ \sf\longmapsto \theta=20°$

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What is the value of x? Please show step by step.

3241004551 [841]

Start by using trig to find the length of the line LJ

The triangle KJL (big right angled triangle) has been given the following dimensions

Hypotenuse = $8 \sqrt{2}$
The adjacent angle is 30 degrees

Since we have the hypotenuse and the angle we must use the equation
opposite = Sin(angle) x Hypotenuse

Opposite= sin30 x $8 \sqrt{2}$

Opposite= $4 \sqrt{2}$

Therefore line LJ is $4 \sqrt{2}$

Now look at the smaller right angled triangle (LMJ)

Hypotenuse is the line LJ which is $4 \sqrt{2}$

The adjacent angle is 45

Since we have hypotenuse and angle we must use the equation opposite = sin(angle) * h

therefore
x= $4 \sqrt{2}$ * sin45= 4

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3 years ago

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marin [14]

Step-by-step explanation:

The equation 0.5s+ 9.99=30 describes the situation.

9.99 is the fixed amount

0.5 is the cost for each song download

30 is the maximum amount spend for a month

Here 's' represents the number of songs download

0.5s+ 9.99=30 means

0.5 times the number of songs plus the fixed cost 9.99 should be equal to 30 dollars.