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zalisa [80]
3 years ago
10

Some one help me solve for x

Mathematics
1 answer:
DanielleElmas [232]3 years ago
4 0

Answer:

x = 10

Step-by-step explanation:

The sum of the interior angles of a quadrilateral = 360°

Sum the angles and equate to 360

9x + 15 + 85 + 90 + 80 = 360, that is

9x + 270 = 360 ( subtract 270 from both sides )

9x = 90 ( divide both sides by 9 )

x = 10

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Mashutka [201]
Let H = Henry
Let R = Roger
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3 years ago
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lukranit [14]

Answer:

D

Step-by-step explanation:

A function is written in slope intercept form (y = mx + b)

so we first have to find the y-intercept or "b" in the question it states that they started off 400 miles away so that would be the "b" then you would need to find the m or slope and in the question it says after seven hours they where 50 miles away and 400 minus 50 is 350 so they traveled 350 miles in 7 hours so you then have to divide 350 by 7 and you get the slope 50 but since it is to find out how far away they are we make it negative giving you the equation y = -50 +400. Hope you found this helpful :D

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3 years ago
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Alex_Xolod [135]

Answer:

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Step-by-step explanation:

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3 years ago
If this rectangle is dilated using a scale factor of 1/2 through point B, what is the result?
NARA [144]

Answer:

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Step-by-step explanation:

5 0
3 years ago
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David says,
Softa [21]

Answer:

no, 72 km/hr is equal to 20m per sec

Step-by-step explanation:

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(you have to multiply my 3600 to get seconds into hours)

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