Answer:
x = sqrt(147)
Step-by-step explanation:
This is a right triangle, so we can use the Pythagorean theorem.
a^2 + b^2 = c^2 where a and b are the legs and c is the hypotenuse.
x^2 +7^2 = 14^2
x^2 +49 = 196
Subtract 49 from each side
x^2 = 147
Take the square root of each side
sqrt(x^2) = sqrt(147)
x = sqrt(147)
Answer: m=-1.
Step-by-step explanation:

Answer:
and 
Step-by-step explanation:
sinB =
=
= 
tanC =
=
= 
Thus
sinB tanC =
×
( cancel b on numerator/ denominator )
= 
---------------------------------------------------------------------------
sinC =
=
= 
tanB =
=
= 
Thus
sinC tanB =
×
( cancel c on numerator/ denominator )
= 