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aliya0001 [1]
3 years ago
8

PLEASE HELP I WILL GIVE BRAINLIEST!!!!!!!!!!!!!

Mathematics
2 answers:
musickatia [10]3 years ago
8 0
59° + 81°+ x° = 180°

140° + x° = 180°

x = 40°
ch4aika [34]3 years ago
7 0

Answer:

22 = <B

Step-by-step explanation:

The exterior angle of the triangle is equal to the sum of the 2 opposite interior angles

<3 = <A + <B

81 = 59+<B

Subtract 59 from each side

81-59 = 59+<B - 59

22 = <B

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help with this !!!!!!!!!!!!!!!!!!!!
Gnom [1K]

Answer:

Using Pythagorean theory : a²+9²=15²

=> a²=225-81=144

=> a = √144 = 12

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Given x = wavelength and y = frequency are inversely related, solve for the constant for the given type of
Natasha_Volkova [10]

Answer:

given

x = k 1/ y

so

k = x y

= 300,000 × 40

= 12,000,000

4 0
3 years ago
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Math Escape Level 3 plz hurry it is due to today bestie
fenix001 [56]

Answer:

1

Step-by-step explanation:

x-9=-8

x=-8+9

x=1

8 0
3 years ago
Does anyone know this :/ ?
choli [55]
Angles 7, 6, 3, 2 are all vertical angles, which mean they are congruent (equal)

so if angle 7 is 115° so are 6, 3, and 2

so the measure of angle 2 is 115°
7 0
3 years ago
Read 2 more answers
Solve for x if the Perimeter = 26<br> 14-2x<br> 2x + 1<br> 3x - 1
sergejj [24]

Answer:

x = 4

Step-by-step explanation:

<em>Perimeter of triangle = sum of all sides</em>

Side 1: 14 - 2x

Side 2: 3x - 1

Side 3: 2x + 1

<em>Perimeter= side 1 + side 2 + side 3</em>

26 = 14 - 2x + 3x - 1 + 2x + 1

26 = 14 - 1 + 1 - 2x + 3x + 2x

26 = 14 + 3x

3x = 12

x = 12/3

x = 4

!!

3 0
3 years ago
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