What is the value of the expression 3.2x−2y+1.7z when x=2
, y=−0.6 , and z=−4 ?
Responses
1.6
1.6
0.8
0.8
−1.6
negative 1.6
I don't know.
To find the value of the expression 3.2x - 2y + 1.7z when x=2, y=-0.6, and z=-4, substitute the given values into the expression:
3.2(2) - 2(-0.6) + 1.7(-4)
= 6.4 + 1.2 - 6.8
= 0.8
Therefore, the value of the expression is 0.8.
To find the value of the expression 3.2x−2y+1.7z when x=2, y=−0.6, and z=−4, you need to substitute the given values into the expression and perform the calculations.
Let's substitute x=2, y=−0.6, and z=−4 into the expression:
3.2(2) - 2(-0.6) + 1.7(-4)
Simplifying the expression:
6.4 + 1.2 - 6.8
Now, combine the terms:
7.6 - 6.8
The final step is the subtraction:
0.8
Therefore, the value of the expression 3.2x−2y+1.7z when x=2, y=−0.6, and z=−4 is 0.8.
The correct answer is 0.8.
To find the value of the expression 3.2x - 2y + 1.7z when x = 2, y = -0.6, and z = -4, we substitute the given values into the expression.
Plugging in the values, we get:
3.2(2) - 2(-0.6) + 1.7(-4)
Simplifying the expression:
6.4 + 1.2 - 6.8
Combining like terms:
7.6 - 6.8
Simplifying further:
0.8
Therefore, the value of the expression is 0.8.