Question

Evaluate the expression below for when a = 49,b=2, and c= 163a:7-2.25 - 62 +7c-4

Answer 1

Substitute the values of the variables into the expression.

`49/7-2.25\cdot2^2+\sqrt[]{16}-(3)/(4)`

SImplify the radical term. Find the square root of 16.

`49/7-2.25\cdot2^2+4-(3)/(4)`

Simplify the exponential expression.

`49/7-2.25\cdot4+4-(3)/(4)`

Multiply or divide from left to right.

`7-2.25\cdot4+4-(3)/(4)=7-9+4-(3)/(4)`

Add or subtract from left to right.

`\begin{gathered} -2+4-(3)/(4)=2-(3)/(4) \\ =(8)/(4)-(3)/(4) \\ =(5)/(4) \end{gathered}`