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blsea [12.9K]
2 years ago
11

What is all of the rotation rules? (geometry)

Mathematics
1 answer:
prohojiy [21]2 years ago
8 0

Answer:

These are the rules of rotation for geometry.
 1)  90° clockwise rotation: (x,y) becomes (y,-x)

2)  90° counterclockwise rotation: (x,y) becomes (-y,x)

3)  180° clockwise and counterclockwise rotation: (x, y) becomes (-x,-y)

4)  270° clockwise rotation: (x,y) becomes (-y,x)

5)  270° counterclockwise rotation: (x,y) becomes (y,-x)

Step-by-step explanation:

I hope this helps! I also added a picture to make this more clear.

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What is the answer to 4÷8/12
lawyer [7]

Answer:

2/12

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3 years ago
Towers A and B are located 10 miles apart. A ranger spots a fire at a 42-degree angle from tower A. Another fire ranger spots th
steposvetlana [31]

Answer:

7.0 mi

Step-by-step explanation:

see the attached figure to better understand the problem

step 1

Find the measure of angle C

Remember that the sum of the interior angles in any triangle must be equal to 180 degrees

so

A+B+C=180^o

substitute the given values

42^o+64^o+C=180^o

C=180^o-106^o=74^o

step 2

Find the measure of a

Applying the law of sines

\frac{c}{sin(C)}=\frac{a}{sin(A)}

substitute the given values

\frac{10}{sin(74^o)}=\frac{a}{sin(42^o)}

solve for a

a=\frac{10}{sin(74^o)}sin(42^o)

a=7.0\ mi

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4 years ago
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Answer:

The solutions are x = -4 and x = 4.

Step-by-step explanation:

Solving a quadratic equation:

We have to find x for which y = 0.

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4 years ago
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