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Inessa05 [86]
3 years ago
10

The value of x is PLEASE ANSWER FAST IM IN THE MIDDLE OF A TEST

Mathematics
1 answer:
kirza4 [7]3 years ago
3 0
The value of the exterior angle next to a triangle is equal to the sum of two angles of the triangle, opposite of the interior angle. In this case: Angle QRT is equal to the sum of angle RTS and angle RST. So if we put that into an equation it will look like this:

9x = 5x + (9 + x)
Now we can solve for x. 
9x = 5x + 9 + x
9x = 6x + 9          (Combine like terms)
9x - 6x = 9            (transpose)
3x = 9
3x/3 = 9/3

x = 3
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nordsb [41]
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Look at the angle (x) you are trying to figure out and pick which one of these it is.

In your calculator, do the equation first to get a decimal

Then press whichever one you chose on the calculator, so if you got like 0.2 by doing opposite/adjacent for tangent, you would type in 0.2 and then the TAN button

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8 0
3 years ago
A polar bear swims 390 meters at a in 150 seconds, what is the speed of the polar bear?
topjm [15]
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4 0
3 years ago
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malfutka [58]

Step-by-step explanation:

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4 0
2 years ago
Please Answer Attachment Below Thanks
docker41 [41]

Answer:

Step-by-step explanation:

The interior angles of a heptagon add up to 5*180 = 900

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x + 800 - 800 = 900 - 800                              Combine

x = 100

8 0
3 years ago
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denis-greek [22]

Answer:

C im pretty sure

Step-by-step explanation:

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5 0
3 years ago
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