WILL MARK AS BRAINLIEST IF CORRECT!

Please help with this geometry question<br><br>is it 12.2? idk...

Anna11 [10]

Yes the answer is 12.2. YZ is half the length of XV

7 0

3 years ago

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Scientists determined that Antarcticas average winter temperatures was..

alexira [117]

Answer:-34.44 degrees Celsius

Step-by-step explanation:Scientists determined that Antarctica's average winter temperature was -34.44 degrees Celsius. The difference between this temperature and Antarctica's highest recorded temperature was 49.44 degrees.

7 0

4 years ago

Anybody know!!!! SOS

ikadub [295]

Answer:

x = 50

Step-by-step explanation:

The sum of the measures of the interior angles of a polygon of n sides is

(n - 2)180

This polygon is a quadrilateral with 4 sides. n = 4

(n - 2)180 = (4 - 2)180 = 2(180) = 360

The sum of the measures of the interior angles of the quadrilateral is 360 degrees.

We have angles of 110 deg, 2x deg, x + 10 deg, and 90 deg. We add their measures and set teh sum equal to 360. Then we solve for x.

x + 10 + 2x + 110 + 90 = 360

3x + 210 = 360

3x = 150

x = 50

4 0

3 years ago

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Solve the equation by completing the square. Round to the nearest hundredth if necessary. x2 + 2x = 17

yawa3891 [41]

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Equation Given
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x² + 2x = 17

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Add the constant to make it perfect square
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x² + 2x + (2/2)² - ²(2/2)² = 17

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Evaluate the brackets
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x² + 2x + (1)² - ²(1)² = 17

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Form the perfect square
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(x + 1)² - 1 = 17

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Add 1 to both sides
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(x + 1)² = 17 + 1
(x + 1)² = 18

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Square root both sides
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√(x + 1)² = $\pm$ √18

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Solve for x
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x = 4.24 - 1 or - 4.24 -1

x = 3.24 or - 5.24 (nearest hundredth)

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Answer: x = x = 3.24 or - 5.24
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7 0

3 years ago

Pls help I’ll brainlest ASAP

Dmitry_Shevchenko [17]

Substract by 12 from 42, and keep going down until you hit -54, which is 8 hours!

4 0

3 years ago