Answer:
a rate
Step-by-step explanation:
You can write the equation using conventional symbols as
3x^2 - 2x - 5 = 0
You can recognize that the middle coefficient is equal to the sum of the other two, so those two coefficients can be used to factor the equation.
(1/3)(3x +3)(3x -5) = 0 . . . . . put the coefficients in the form (1/a)(ax + ...)(ax + ...) (x+1)(3x-5) = 0 . . . . . simplify
The solutions are the values of x that make one or the other of the factors equal to zero.
x = -1
x = 5/3
First, find angle ECD using tan^-1(6/4), we get angle as 56.31
Now by proportionate, angle ECD and angle EBA are equal.
Hence you can use tan to find AB i.e, AB = 18/tan(56.31)= 12
Therefore, AB = 12
I believe A is your best answer choice.
I hope this helped!
Answer:
second one, third one and last one
Step-by-step explanation:
X-4
<u>-4+x
</u>
4+x
<u>-x+4
</u>
<u>4+(-x)</u>
if u just switch their postitions itll be the same thing
