Final answer:
The value of the expression (w2x−3)÷10⋅z when w = -6, x = 1.2, and z = -6/7 is approximately -3.4486.
Step-by-step explanation:
To evaluate the expression (w2x−3)÷10⋅z when w = -6, x = 1.2, and z = -6/7, we substitute the given values into the expression:
= ((-6)²(1.2) - 3) ÷ 10 * (-6/7)
= ((36)(1.2) - 3) ÷ 10 * (-6/7)
= (43.2 - 3) ÷ 10 * (-6/7)
= 40.2 ÷ 10 * (-6/7)
= 4.02 * (-6/7)
= -3.4486
Therefore, the value of the expression is approximately -3.4486.