Final answer:
The value of the expression 8w−4j² when w=0.25 and j=0.5 is found by substituting the values in and simplifying the expression, resulting in a final value of 1.
Step-by-step explanation:
To find the value of the expression 8w−4j² when w=0.25 and j=0.5, we need to substitute the given values into the expression and simplify as follows:
First, substitute the values of w and j into the expression:
8(0.25) - 4(0.5)2
Multiply 8 by 0.25:
2 - 4(0.5)2
Square 0.5 (which is 0.5 x 0.5):
2 - 4(0.25)
Multiply 4 by 0.25:
2 - 1
In the final step, subtract 1 from 2:
1
The value of the expression is 1.