-3X+4=16
Subtract 4 from each side.
-3x+4-4=16-4
-3x=12
Divide each side by -3.
x=-4
I hope this helps!
8x = 13
13 divided by 8
that would be 1.625
Answer:
cos(m∠B) = 2√5/5
Step-by-step explanation:
Easiest way is to guess and check on this problem. When you take the cos(m∠B), you would get 6/3√5, rationalized to 2√5/5. That would be the correct answer.
Compose the quadratic condition in standard shape, ax2 + bx + c = 0. Recognize the values of a, b, c. Write the Quadratic Equation. At that point substitute within the values of a, b, c. Simplify. Check the arrangements.
First two are scalene last one is isosceles.