Question

K²= 0.49

-
Choose all answers that apply:
A k = 0.6
B
C
D
m
k = -0.6
k = 0.7
k
-
-0.7
None of the above
104

Answer 1

k = - 0.7 , k = 0.7

Explanation:

given

k² = 0.49 ( take square root of both sides )

`√(k^2)` = ±
`√(0.49)` , that is

k = ± 0.7 , that is

k = - 0.7 , k = 0.7

since 0.7 × 0.7 = 0.49 and - 0.7 × - 0.7 = 0.49