Find the z value such that 39% of the standard normal curve lies between −z and z.

Value of Z =0.51

Step-by-step explanation:

Given that P(-z<0<z) = 0.39

Or P(0<z) = 0.39/2 = 0.195

From standard normal table we find that

0.51 satisfies that

P(0<z<0.51) = 0.195

Hence value of z = 0.51

i believe it is c.y = 9x

rise over run. 9 units up over 1 unit right or 9/1

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!