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Mnenie [13.5K]
3 years ago
13

GEOMETRY HELP PLEASE! Thank you. A quadrilateral has two angles that measure 80° and 150°. The other two angles are in a ratio o

f 2:11. What are the measures of those two angles?
Mathematics
2 answers:
Ierofanga [76]3 years ago
7 0

Answer:

23.6 and 106.4

Step-by-step explanation:

Nimfa-mama [501]3 years ago
5 0
Answer: 20° and 110°
explanation: quadrilaterals must add up to 360° so in order to find out the total of the other two angles, subtract both of the given angles from the total 360.
360 - 80 - 150 = 130
you then take the ratio and add the two numbers
2 + 11 = 13
next you would divide the total of the two unknown angles by this number.
130/13 = 10
lastly, to get each angle, you would multiply each side of the original ratio
2 x 10 = 20
11 x 10 = 110
to double check, you would all four angles to make sure it equals 360
150 + 80 + 20 + 110 = 360
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liraira [26]

The expression -2\vec C+6\vec D in the ordered pair notation is (16,-16).

The vector components of a vector are represented as the ordered pair of its x and y components.

For example, if a vector has x - component 'a' and y- component 'b' , then the ordered pair notation for the vector is (a, b), where the vector is a \vec i+b \vec j.

Now the vector C has its x- component = -2

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Therefore, ordered pair notation of C = (-2, -1)

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Therefore, ordered pair notation of D = (2,-3)

So the expression  -2\vec C+6\vec D = -2 (-2,-1) +6 (2,-3) = (4,2) + (12, -18)

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That is, the vector \bold {-2\vec C+6\vec D} is a vector with x-component 16 and y-component -16.

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Answer:

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Step-by-step explanation:

have a good day

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