Answer:
-686
Step-by-step explanation:
2 x -343 = -686
Answer:
188 units cubed
Step-by-step explanation:
idrk the answer but try 2
Step-by-step explanation:
Draw the triangle formed by the ray.
The hypotenuse of the triangle is:
c² = a² + b²
c² = (-5)² + (2√7)²
c² = 25 + 28
c = √53
Therefore:
cos β = -5 / √53
Or, as a proper fraction:
cos β = -5√53 / 53