AB = 9.
It is given that BC = 9 and AB = BC. Hence, AB = BC = 9.
Answer: hello your question is poorly written attached below is the complete question
answer:
--- ( option d )
Step-by-step explanation:
The correct option that represents a square root of 3 as related to the question attached below is :
Answer:
4,560,000 is your answer.
~Sophia
The answer is 6
3x-12-x-5=2x-11
2x-17=2x-11
=6
Answer:
√2(√3 - 1)/4
Step-by-step explanation:
To find an exact value for Cos75°, we use the compound angle formula. Since 75° = 45° + 30°, Cos75° = Cos(45° + 30°).
Using Cos(A + B) = CosACosB - SinASinB where A = 45° and B = 30°,
Cos75° = Cos(45° + 30°) = Cos45°Cos30° - Sin45°Sin30°
Now Cos45° = Sin45° = 1/√2 = √2/2, Cos30° = √3/2 and Sin30° = 1/2.
Substituting these values into the above equation, we have
Cos75° = Cos(45° + 30°)
= Cos45°Cos30° - Sin45°Sin30°
= √2/2 × √3/2 - √2/2 × 1/2
= √6/4 -√2/4
= √2(√3 - 1)/4
