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Murljashka [212]
3 years ago
7

For the following figure, can you conclude that l | | m? Select true or false.

Mathematics
2 answers:
Reptile [31]3 years ago
8 0
1,3,4 are true and 2 is false
DiKsa [7]3 years ago
8 0

case A)

we know that

If l and m are parallel lines

then

35\° =35\° ----> by corresponding angles

the expression is true

therefore

the answer part A) is True  (see the attached figure)

case B)

we know that

If l and m are parallel lines

then

120\°=118\° ----> by corresponding angles

the expression is not true

therefore

the answer part B) is False  (see the attached figure)

case C)

we know that

If l and m are parallel lines

then

70\° =70\° ----> by alternate interior angles

the expression is true

therefore

the answer part C) is True  (see the attached figure)

case D)

we know that

If l and m are parallel lines

then

50\° =50\° ----> by alternate exterior angles

the expression is true

therefore

the answer part D) is True  (see the attached figure)

The answer in the attached figure      

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Write <img src="https://tex.z-dn.net/?f=cot%5E%7B2%7D%20x%20%281%2Btan%5E%7B2%7D%20x%29" id="TexFormula1" title="cot^{2} x (1+ta
ASHA 777 [7]

Step-by-step explanation:

From Trig

1 + tan²x = Sec²x

Also

Sec²x = 1/cos²x

Now

Cot²x = 1/tan²x = cos²x/sin²x

Putting all together

Cot²x(1+tan²x)

= Cot²x(sec²x)

= cos²x/sin²x(1/cos²x)

cos²x on the numerator and that one the denominator cancels out

we have

= 1/sin²x

From Trig

1/sin²x = cosec²x

So Our Answer = cosec²x.

7 0
3 years ago
The bill from your plumber was 134. The cost of labor was 32 per hour. The cost of materials was 46. How many hours did the plum
ladessa [460]
2.75 hours.

The equation would be 32x + 46 = 134. So we subtract 46 from 134 and get 88. Now we have to divide that by 32 to get the total of 2.75 hours
4 0
3 years ago
Help fast! If you answer right ill give best khan academy
deff fn [24]

Answer:

17 I think it's 17 considering the 45 went to 35

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4 years ago
What is the value of x in the equation 5 x + 3 = 4 x?
TiliK225 [7]

Answer:

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Step-by-step explanation:

because i got it right before :)

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