Solve the triangle. a = 52°, b = 10, c = 7

 a ≈ 7.9, C ≈ 43.9, B ≈ 84.1

Step-by-step explanation:

Use the Law of Cosines:

a² = b² + c² - 2ab·cos A

Substituting the given values, we obtain:

a² = (10)² + (7)² - 2(10)(7)·cos 52°

    = 100 + 49 - 140·0.6157

    =      149 - 86.1926

    =    62.81

Taking the square root of both sides yields:

a = 7.925, or (to the nearest degree) 8

what?

step-by-step explanation:

answer: all of the odd numbers were opened

the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.