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3 years ago

PLZ HELP!!! :D

Mathematics

2 answers:

alexandr402 [8]3 years ago

8 0

Answer:

Step-by-step explanation:

Shalnov [3]3 years ago

5 0

Yeah it’s be because going from -5 to 4 it’s +3

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Given the triangle find the length of side 2 using the Law of Sines.

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After much work and 12 pages of notebook paper the answer is 28

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3 years ago

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balu736 [363]

Step-by-step explanation:

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3 years ago

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I NEED UR HELP PLEASE ANSWER THIS QUESTION ASAP!!!!!

SVEN [57.7K]

1/ we make -3*and and we have y=-1 and we replaced to have x=6 2/ any answer x=(7y+3)÷2 If we change answer of x in the second equation we get -7y-3+7y=-3 3/ x=-4+2y we change it in the second equation and we get y =1 if replace it in the first we have x=-2 4/ B=10 and C=16 5/ a= false b=true c=true d=true

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4 years ago

If PQRS is a rhombus, which statements must be true? Check all that apply.

bezimeni [28]

These statements are true:

$\bold{First.} \ \overline{PS} \ is \ parallel \ to \ \overline{QR}$

This is true because of the definition of a rhombus which states that opposite sides are parallel.

$Then \ \overline{PS} \ is \ opposite \ to \ \overline{QR}$

$\bold{Second.} \ \overline{PR} \ is \ perpendicular \ to \ \overline{QS}$

This is true because the diagonals of a rhombus bisect each other at right angles.

$\bold{Third.} \ \overline{PQ}=\overline{RS}$

This is true because the four sides of a rhombus are all equals.

$\bold{Fourth.} \ \angle PQR \ is \ supplementary \ to \ \angle QPS$

This is also true. Two angles are supplementary when they add up to 180 degrees. Angles in rhombus are equal two to two. Let's name:

$\angle PQR = \alpha \ and \ \angle QPS = \beta$

Then it is true that:

$\angle PQR=\angle PSR \ and \ \angle QPS=\angle QRS$

Besides, a rhombus is a quadrilateral and it is true that the interior angles of a quadrilateral add up to 360 degrees, thus:

$2\alpha+2\beta=360 \\ \\ \therefore \boxed{\alpha+\beta = 180^\circ}$

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3 years ago

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