Answer:
c=sqrt21
Step-by-step explanation:
angle c is the angle between a and b, so use the cos law
c^2=a^2+b^2-2*a*b*cosC
c^2= 16+25-2*4*5*1/2
c^2=21
c=sqrt21
G
If it’s wrong I’m sorry but I’m pretty sure it’s G
The answer is negative 32
Answer:
Step-by-step explanation:
A is a quadratic. Quadratics are not linear. It contains an x^2 term.
B isn't really a true value for a solution to a linear equation because there are x's on both sides of the equation. They can be divided out leaving you with 12 = 17.
C is linear It has 1 solution The answer to C is 3.64
D is linear it has 1 solution The answer to D is 5/12
Both C and D have only 1 solution each. That is one of the characteristics of linear equations.
