2 years ago

Find the distance between points (4,-9) and (-2,6)

Mathematics

1 answer:

Pavel [41]2 years ago

4 0

Answer:

16.1555

Step-by-step explanation:

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Are all integers rational numbers?

Snezhnost [94]

Answer:

True

Step-by-step explanation:

Yes! All integers "are" rational numbers. They can be expressed in the form of p/q.

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Don't hesitate asking anything regarding this.

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EleoNora [17]

Answer:DN

Step-by-step explanation:

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2 years ago

Help pls?? answer for me??f

Dafna11 [192]

ANSWER

C PO SANA MAKATULONG PO YAN

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What is the sum?<br><br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B2%7D%7B%20%7Bx%7D%5E%7B2%7D%20%7D%20%20%2B%20%20%5Cfrac%7

shutvik [7]

Answer:

6/x^2

Step-by-step explanation:

Simplify the following:

2/x^2 + 4/x^2

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(2 + 4)/x^2

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8 0

2 years ago

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Please help with number 7

DedPeter [7]

Answer:

Step-by-step explanation:

cos 2α=1-2 sin² α

$sin \alpha =\sqrt{\frac{1-cos2\alpha }{2} } \\put~ \alpha =\frac{\pi }{8} \\2\alpha =\frac{\pi }{4} \\cos 2\alpha =cos \frac{\pi }{4}=\frac{1}{\sqrt{2} } \\\\sin(\pi/8)=\sqrt{\frac{1-\frac{1}{\sqrt{2} } }{2}} =\sqrt{\frac{\sqrt{2}-1 }{2\sqrt{2} }$

6 sin 3 \theta+6 sin \theta

$6 sin 3 \alpha +6 sin\alpha =6(sin 3\alpha +sin \alpha )\\=6 *2sin \frac{3\alpha+\alpha }{2} cos \frac{3\alpha-\alpha }{2} \\=12 sin 2\alpha cos \alpha$

please change α to \theta

5 0

2 years ago