evaluate the expression 5b-ac when a=-4, b=2, and c=0.5

Answer 1

To evaluate the expression 5b - ac when a=-4, b=2, and c=0.5, we substitute the given values into the expression:

5b - ac = 5(2) - (-4)(0.5)

This simplifies to:

5(2) - (-4)(0.5) = 10 - (-2) = 10 + 2 = 12

Therefore, the value of the expression 5b - ac when a=-4, b=2, and c=0.5 is 12.