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GREYUIT [131]
3 years ago
12

If a figure can be rotated 6 times, it has how many lines of rotational symmetry?

Mathematics
1 answer:
pshichka [43]3 years ago
5 0

Answer: The answer is 7

Step-by-step explanation:

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Use △XYZ, in which ∠X is a right angle and tanY=815.
Neporo4naja [7]

Answer:

8/17

Step-by-step explanation:

The correct and complete question is:

<em>Use △XYZ, in which ∠X is a right angle and tanY=8/15. What is the ratio for sinY?</em>

From definition:

tan(Y) = opposite/adjacent

From the graph and the question:

tan(Y) = XZ/XY = 8/15

Then:

XZ = 8 and XY = 15. Using pytaghorean theorem:

XZ² + XY² = YZ²

8² + 15² = YZ²

√289 = YZ

17 = YZ

From definition:

sin(Y) = opposite/hypotenuse

From the graph:

sin(Y) = XZ/YZ

sin(Y)= 8/17

8 0
2 years ago
Prove whether the following inferences are valid using the long or short truth table method. If they are invalid, give the count
bezimeni [28]

Answer:

6

Step-by-step explanation:

7 0
2 years ago
Line AB passes through points A (-6,6) and B(12,3). If the equation of the line is written in slope-intercept form, y=mx+b, the.
Tomtit [17]

Answer:

You wrote the question wrong...

m is not -16 it is -1/6 (that is a big difference)

y=mx+b

y=-1/6x+b

3 = -1/6(12) + b

3 = -2 + b

b=5

Step-by-step explanation:

3 0
2 years ago
Simplify: -3|-2|+4|-5| Show full work.
kherson [118]
Absolute values are always positive, so this becomes -3(2)+(4)(5)
Multiply. -6+20=14

Answer: 14
3 0
2 years ago
Read 2 more answers
Three to the power of three minus seven plus ten
BARSIC [14]

Answer:

30

Step-by-step explanation:

You’re correct

6 0
3 years ago
Read 2 more answers
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