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ivolga24 [154]
3 years ago
12

What is the value of x?

Mathematics
2 answers:
klio [65]3 years ago
8 0

Answer:

x = 84°

Step-by-step explanation:

The sum of the interior angles of a pentagon is equal to 540°.

x + 107 + 108 + 110 + 131 = 540

x + 456 = 540

x + 456 - 456 = 540 - 456

x = 84

alexgriva [62]3 years ago
4 0

Answer:

x = 84

Step-by-step explanation:

If you add up all of the internal angles in ANY pentagon it will be 540, so

x = 540 - (131+108+107+110)

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Answer:

D

Step-by-step explanation:

32+35=67

90-67=23

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8 0
3 years ago
Verify the following trig identities​.
bagirrra123 [75]

Answer:

see explanation

Step-by-step explanation:

Using the trigonometric identities

• 1 + cot² x = csc²x and csc x = \frac{1}{sinx}

• sin²x + cos²x = 1 ⇒ sin²x = 1 - cos²x

Consider the left side

sin²Θ( 1 + cot²Θ )

= sin²Θ × csc²Θ

= sin²Θ × 1 / sin²Θ = 1 = right side ⇔ verified

-----------------------------------------------------------------

Consider the left side

cos²Θ - sin²Θ

= cos²Θ - (1 - cos²Θ)

= cos²Θ - 1 + cos²Θ

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3 0
3 years ago
9(s)+3=57 what is dose the letter s represent in this quation
xz_007 [3.2K]
57-3= 54 9x6= 54 s=6
3 0
3 years ago
50 points! I will mark brainliest! Random answers will be reported :)
ASHA 777 [7]

Answer:

x=10

Step-by-step explanation:

Notice that all three sides of the given triangle has one tick mark.

This means that all three sides are congruent, meaning that we have an equilateral triangle.

And for equilateral triangles, all three angles are also congruent.

So:

\angle CBA=\angle BAC=\angle ACB

Also, recall that the interior angles of a triangle is always 180. Thus:

\angle CBA+\angle BAC+\angle ACB=180

Substitute:

\angle CBA+\angle CBA+\angle CBA=180

Combine like terms:

3\angle CBA=180

Substitute:

3(6x)=180

Multiply:

18x=180

Thus:

x=10

And we are done!

3 0
3 years ago
Use the drop-down menus to complete the statements. Fossils on continents that are now separated by support the theory of contin
damaskus [11]

oceans, tropical plants, Europe

Step-by-step explanation:

Fossils on continents that are now separated by oceans support the theory of continental drift. Continents closer to the equator have warmer climates, yet fossils of tropical plants have been found on islands near the North Pole. This supports the idea that islands drifted from the equator. Coal fields in Europe match those found in North America, supporting the theory of continental drift.

The theory of continental drift was proposed by Alfred Wegener in the early part of 20th century. He suggested that the continents have once been joined together as a single landmass but have drifted to their current positions today.

  • Fresh water fossils of organisms like Mesosaurus was found in parts of South America and Southern Africa. These organisms could not have swim between the oceans since they are localized to freshwater environments.
  • Tropical plants have also been found in regions of the north pole.
  • Coal fields in north America correlated with those in South America and this provided support to the theory of continental drift by Wegener.
  • He also fitted the the world into a giant puzzle to support his claim.

Learn more:

Wegener brainly.com/question/5002949

#learnwithBrainly

8 0
3 years ago
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