9514 1404 393
Answer:
obtuse
Step-by-step explanation:
The law of cosines tells you ...
b² = a² +c² -2ac·cos(B)
Substituting for a²+c² using the given equation, we have ...
b² = b²·cos(B)² -2ac·cos(B)
We can subtract b² to get a quadratic in standard form for cos(B).
b²·cos(B)² -2ac·cos(B) -b² = 0
Solving this using the quadratic formula gives ...

The fraction ac/b² is always positive, so the term on the right (the square root) is always greater than 1. The value of cos(B) cannot be greater than 1, so the only viable value for cos(B) is ...

The value of the radical is necessarily greater than ac/b², so cos(B) is necessarily negative. When cos(B) < 0, B > 90°. The triangle is obtuse.
Answer:
A Between 0-1/2
Step-by-step explanation:
Because you don't know if the rug is solid white or a checkard rug. But I could be wrong with insufficient evidence of the rug
We cant answer this because we dont know what the 2 triangles look like
we have

we know that


so



the answer is in thousandths, because the denominator of the multiplication of the two fractions is one thousand
Answer:

Step-by-step explanation:
