Answer: second option.
Step-by-step explanation:
You must apply ![sin\alpha=\frac{opposite}{hypotenuse}](https://tex.z-dn.net/?f=sin%5Calpha%3D%5Cfrac%7Bopposite%7D%7Bhypotenuse%7D)
Then, given the right triangle and the angle D, the opposite side and the hypotenuse of the triangle are the following:
![opposite=20\\hypotenuse=25](https://tex.z-dn.net/?f=opposite%3D20%5C%5Chypotenuse%3D25)
Therefore, when you substitute values, you have:
![sinD=\frac{20}{25}](https://tex.z-dn.net/?f=sinD%3D%5Cfrac%7B20%7D%7B25%7D)
Reduce the fraction, then you obtain:
![sinD=\frac{4}{5}](https://tex.z-dn.net/?f=sinD%3D%5Cfrac%7B4%7D%7B5%7D)
Measure of x is 74 degrees
Answer:
21
Step-by-step explanation:
42 divided by 2 = 21. or 2×21= 42
Hope I helped!!✌
Answer:
3x+ 5 = 6
. Correct.
Step-by-step explanation:
Let x = the number.
The number tripled: 3x
Tripled and increased by : 3x + 5
Equals 6: 3x+ 5 = 6
Correct.