Just take 30 : 25
divide each to 5 and that’s 6 : 5
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:
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![\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](https://tex.z-dn.net/?f=%20%5Cfrac%7B13%7D%7Bsin90%5Eo%7D%3D%20%5Cfrac%7B12%7D%7Bsin%20%5Calpha%20%7D%20%20%20%5C%20%5C%20%5Cto%20%5C%20%5C%20sin%20%5Calpha%20%3D%20%5Cfrac%7B12%20%5Ccdot%20sin90%5Eo%7D%7B13%7D%3D%20%20%5Cfrac%7B12%2A1%7D%7B13%7D%20%20%5Capprox%200.923%20%5C%20%5C%20%5Cto%20%5C%20m%5Cangle%20%20%5Calpha%20%5Capprox%2067%5Eo)
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).
Answer:
26 y + 5
Step-by-step explanation:
Simplify the following:
7 3 y + 4 3 y - 3 y - 2 2 y + 5
7×3 = 21:
21 y + 4 3 y - 3 y - 2 2 y + 5
-2×2 = -4:
21 y + 4 3 y - 3 y + -4 y + 5
4×3 = 12:
21 y + 12 y - 3 y - 4 y + 5
Grouping like terms, 21 y + 12 y - 3 y - 4 y + 5 = (21 y - 4 y + 12 y - 3 y) + 5:
(21 y - 4 y + 12 y - 3 y) + 5
21 y - 4 y + 12 y - 3 y = 26 y:
Answer: 26 y + 5
Answer:
It is valid because it is a systematic random sample.
Step-by-step explanation:
Hope this helps
Correct me if this is wrong