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lara31 [8.8K]
3 years ago
15

12. Based on the pattern below, what would you expect the next block to look like? O

Mathematics
1 answer:
TiliK225 [7]3 years ago
8 0

Answer:

Choice 3

Step-by-step explanation:

The block is rotating counterclockwise 90º each time. If you visualize the cube you can think of the triangle rotating and the circle being on the face adjacent to the triangle's base.

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Step-by-step explanation:

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4 years ago
What are the remaining trig functions? and how do i solve for them? pls help
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You're told that tan(<em>θ</em>) is positive, but

tan(<em>θ</em>) = sin(<em>θ</em>)/cos(<em>θ</em>)

and you're also told that sec(<em>θ</em>) = 1/cos(<em>θ</em>) = -3. So if cos(<em>θ</em>) is negative, sin(<em>θ</em>) must also be negative. In turn, both sec(<em>θ</em>) = 1/cos(<em>θ</em>) and csc(<em>θ</em>) = 1/sin(<em>θ</em>) are also negative.

Now, recall the Pythagorean identity,

cos²(<em>θ</em>) + sin²(<em>θ</em>) = 1

Multiply through both sides by 1/cos²(<em>θ</em>) to get an alternate form of the identity,

1 + tan²(<em>θ</em>) = sec²(<em>θ</em>)

Solve for tan(<em>θ</em>) (which we know is positive):

tan(<em>θ</em>) = √(sec²(<em>θ</em>) - 1) = 2√2

Right away, we get

cot(<em>θ</em>) = 1/tan²(<em>θ</em>) = 1/(2√2) = √2/4

Since sec(<em>θ</em>) = -3, it follows that cos(<em>θ</em>) = -1/3.

Then

tan(<em>θ</em>) = sin(<em>θ</em>)/cos(<em>θ</em>)   ==>   sin(<em>θ</em>) = 2√2 × (-1/3) = -2√2/3

and so

csc(<em>θ</em>) = 1/sin(<em>θ</em>) = -3/(2√2)

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Step-by-step explanation:

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52.3% you just move the decimal
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What's the answer???
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Answer:

2nd option

Step-by-step explanation:

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