Astudent is asked to solve the equation below and to justify her steps. identify what, if anything, is incorrect in her math or justification. j – 6 = –10 step justification j – 6 = –10 given j – 6 – 6 = –10 – 6 addition property of equality j = –16 a. the student has mislabeled the work in the second step as "addition property of equality." b. the student improperly applied the addition property of equality in the second step. c. the student rewrote the the problem incorrectly in step 1. d. there is no error. the student's justification is correct.

B. The student improperly applied the addition property of equality in the second step.

Step-by-step explanation:

We are given j - 6 = -10. The final answer should be j = -4 after adding 6 to both sides, but the student got j = -16. This means that she added wrong. So the answer should be B; she improperly added 6 to both sides (she subtracted 6).

since your problem is x^4 = 81, what you have to undeo is the "to the fourth power" part.

the inverse (opposite operation) of "to the fourth power" is "to the fourth root".

  (x^4) ^ ¼   = 81 ^ ¼  

  81 = 3^4     so (3 ^ 4) ^ ¼   =   3 ^ 1   = 3

by hand: (3 ^ 4) ^ ¼   =   3 ^ (4 x ¼) = 3 ^ 1   = 3   (when you take a power to a power, multiply the exponents.)

or, do it by calculator. one way of finding the fourth root is to use ^ (1/4)

step-by-step explanation: