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3 years ago

7

If parallelogram JKLM is rotated 270° counterclockwise around the origin, what are the coordinates of the endpoints of the side

congruent to side KL in the image parallelogram?

2 answers:

allochka39001 [22]3 years ago

7 0

No graph, so cannot be precise.
But you can apply rotation 270 CCW = rotation -90 CCW

r_[90] : (x,y) -> (y,-x)

svetoff [14.1K]3 years ago

5 0

Answer:

K′(−6, −4); L′(−3, −3)

Step-by-step explanation:

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5 months

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y=mx+b

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4 years ago

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3 years ago

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3 years ago

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3 years ago

What is the value of tan?

olga_2 [115]

Answer: B. $\frac{4}{3}$ .

Step-by-step explanation:

In a right triangle, the ratios of its sides are called trigonometric ratios.
The three common trigonometric ratios are the sine (sin), cosine (cos), and tangent (tan).

We have given , $\sin\theta=\dfrac{4}{5}\text{ and }\dfrac{\pi}{2}$ .

Then, $\cos\theta =\sqrt{1-\sin^2\theta}\ [\because\ \sin^2A+\cos^2A=1]$

Put value of $\sin\theta$ , we get

$\Rightarrow\ \cos\theta=\sqrt{1-(\frac{4}{5})^2}$

$\Rightarrow=\sqrt{1-\frac{16}{25}}=\sqrt{\frac{25-16}{25}}=\sqrt{\frac{9}{25}}=\frac{3}{5}$

Now , as we know , $\tan\theta=\dfrac{\sin\theta}{\cos\theta}=\dfrac{\frac{4}{5}}{\frac{3}{5}}=\frac{4}{3}$

Hence, the correct option is B. $\frac{4}{3}$ .

7 0

3 years ago