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daser333 [38]
3 years ago
11

Plz help me asap

Mathematics
2 answers:
beks73 [17]3 years ago
8 0

Answer:

Y=4 C=-7

Step-by-step explanation:

Solve for Y

y-7=-3

add 7 on both sides to clear the 7

y-7+7=-3+7

add

y=4

c-8=-15

clear the 8 by adding to both sides

c+8-8=-15+8

subtract

c=-7

Hunter-Best [27]3 years ago
6 0
Here you go hope this helps!

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Besides the 90° angle measure, what are the other two angle measures of a right triangle with side lengths 5, 12, and 13? Round
TEA [102]
In the right triangle, the longest side is the hypotenuse.
Let α be the angle opposite to the side with a length of 12 units, <span>then according to the Law of sines:

</span>\frac{13}{sin90^o}= \frac{12}{sin \alpha }   \ \ \to \ \ sin \alpha = \frac{12 \cdot sin90^o}{13}=  \frac{12*1}{13}  \approx 0.923 \ \ \to \ m\angle  \alpha \approx 67^o

In a triangle, the three interior angles always add to 180° ⇒

third angle = 180 - 90 - 67 = 23°

Answer:
67° and 23°  (to the nearest degree).
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3 years ago
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Answer:

102°

Step-by-step explanation:

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