Question

Evaluate each expression if w = -3, x = 4, y = 2.6, and z = 1/3. Round to thenearest tenth if necessary.9z – 4y + 2w

Answer 1

The given expression is

`9z-4y+2w`

Given that

`w=-3,x=4,y=2.6,z=(1)/(3)`

Substitute the value into the given expression, we have

`\begin{gathered} 9z-4y+2w \\ 9((1)/(3))-4(2.6)+2(-3) \end{gathered}`

simplify the expression in the last line above

`\begin{gathered} 3-10.4-6 \\ -13.4 \end{gathered}`

Hence

The value for the expression is -13.4