Answer:
A triangle is scalene if all of its three sides are different. If two of its sides are equal, a triangle is called isosceles. A triangle with all three equal sides is called equilateral.
Answer: 4
Step-by-step explanation:
Because the equation says at least 45, we know the sign is 
. Because she has already run 6 rounds, the equation must have + 6.
Hope it helps <3
The law of cosines is
c= square root of a^2 + b^2 - 2ab cos c
the law of sines is
a = b(sin a /sin b)
Answer:
x = -2
y= -5
is the solution of the system of equations
