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ozzi
3 years ago
10

What conic section is drawn by the parametric equations x=csc t and y cot?

Mathematics
1 answer:
Vanyuwa [196]3 years ago
3 0
If we take the square of x and square of y and then subtract them:
                         (csc t)²-(cot t)²=1                      ( this eq. gets from basic identity 
                               x²-y²=1......a                                               1+cot²x=csc²x)
  
 equation 'a' represent the equation of hyperbola which is (x²/a²)-(y²/b²) =1 with given conditions( a=1,b=1)

So, option D is correct
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The figure shows triangle ABC with medians AF, BD, and CE. Segment AF is extended to H in such a way that segment GH is congruen
attashe74 [19]

Answer: Segment GD is parallel to segment HC.

Step-by-step explanation:

In ΔAHC

AG=GH (given)...........1

As BD is the median of ΔABC bisecting AC at D

∴AD=DC.........2

⇒\frac{AD}{DC}=\frac{AG}{GH}=1(from 1 and 2)

⇒segment GD is dividing the sides AH and AC  in same ratio.

Therefore by the converse of Basic proportionality theorem,segment GD is parallel to segment HC.

Converse of basic probability theorem states that if a line divides any two sides of a triangle in the same ratio, then the line must be parallel to the third side.

5 0
3 years ago
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PLS HELP 50 POINTS<br><br> Calculate m∠ABC and m∠CBD, what is the value of x?
dusya [7]

Answer:

bottom right, x = 90

bottom left, x = 40

top left, x = 28

Step-by-step explanation:

This problem uses the variable x to mean three different numbers.

This is an incorrect use of a variable.

On the bottom right, x is a right angle, so x = 90.

On the bottom left, x + 5 = 45, so x = 40.

On the top left, 3x + 6 = 90, so x = 28.

7 0
2 years ago
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the fourth term of an arithmetic sequence is 141, and the seventh term is 132. what is the first term?
Cerrena [4.2K]
The 1st, 4th, and 7th terms make an arithmetic sequence of their own. The 4th term is the average of the 1st and 7th, so ...
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   1st + 7th = 2×4th
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The first term is ...
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7 0
3 years ago
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murzikaleks [220]
I'm just gonna say that its maybe 1 and 4. I'm not sayig its correct, its just that i think thats what it is.
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xenn [34]

Answer:1.16

Step-by-step explanation:

1/3 * 3.5

3 0
3 years ago
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