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Helen [10]
3 years ago
14

I NEED HELP PLEASE FAST ILL PICK BRAINLIEST AND A LOT OF POINTS PLZ

Mathematics
2 answers:
Strike441 [17]3 years ago
8 0

Answer:

a=38, b=54 ,c=54

WINSTONCH [101]3 years ago
5 0

Answer:

a=38 b=54 c=46

Step-by-step explanation:

c= (180-88)/2 b= 180-(a+88) a=180-142

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Find the value of Cot(450°+theta)
Leya [2.2K]
cot(450\° + \theta) = \frac{1}{tan(450\° + \theta)}
cot(450\° + \theta) = \frac{cos(450\° + \theta)}{sin(450\° + \theta)}
6 0
3 years ago
Select the equation of a line that is parallel to the line 4y=3x+5 use the attached image below to help you out!!!
BARSIC [14]

Answer:

B

Step-by-step explanation:

Parallel lines have the same slope. The slope of the given line is 3/4. Line B has the same slope.

7 0
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A photograph is reduced by a scale factor of 3/8 . If the original length of the photograph was 20 inches, what is the length of
Ksju [112]
To solve this problem you must apply the proccedure shown below:

 1. You have that the following information given in the problem above: The<span> photograph is reduced by a scale factor of 3/8 and the original had a length of 20 inches, 

 2- Therefore you have:

 length=20 inches-</span>(20 inches x 3/8)<span>
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8 0
3 years ago
Help please can’t find this anywhere
givi [52]

9514 1404 393

Answer:

  x = 6

Step-by-step explanation:

You can actually work out the answer yourself.

The two angles shown have the total measure 168°, so the unmarked one is ...

  168° -100° = 68°

That is ∠WXZ, so we know ...

  68° = (5x +38)°

  30 = 5x . . . . . . . . . . divide by °, subtract 38

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5 0
3 years ago
A ladder is leaning against a building so that the distance from the ground to the top of the latter is 1 foot less than the len
masha68 [24]

Answer:

25\text{ feet}

Step-by-step explanation:

The ladder, ground, and building form a right triangle where the vertical distance between the top of the ladder and the bottom of the ground is one leg, the horizontal distance between the bottom of the ladder and the building is another leg, and the length of the ladder is the hypotenuse.

For any right triangle, the Pythagorean Theorem states that the sum of the squares of both legs is equal to the hypotenuse squared (a^2+b^2=c^2), where c is the hypotenuse.

Let the length of the ladder be \ell (hypotenuse of right triangle). The distance between the top of the ladder and the ground (vertical distance) can be represented as \ell -1.

From the Pythagorean Theorem, we then have:

7^2+(\ell-1)^2=\ell^2

Expand using (a-b)^2=a^2-2ab+b^2:

49+\ell^2-2\ell+1=\ell^2

Subtract \ell from both sides and add 2\ell to both sides:

49+1=2\ell

Combine like terms:

50=2\ell, \\2\ell =50

Divide both sides by 2:

\ell=\frac{50}{2}=\boxed{25\text{ feet}}

Therefore, the length of the ladder is 25 feet.

4 0
3 years ago
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