Question

Evaluate the expression for the given value of the variable: 5 × (h + 3) for h = 7 2 × (c² - 5) for c= 47a - 4a for a = 8

Answer 1

50

22

24

Step-by-step explanation:

Given the below expression;

`5*(h+3)`

Let's go ahead evaluate when h = 7;

`5*(7+3)=5*10=50`

Given the below expression;

`2*(c^2-5)`

Let's go ahead evaluate when c = 4;

`\begin{gathered} 2*(4^2-5) \\ =2*(16-5) \\ =2*11 \\ =22 \end{gathered}`

Given the below expression;

`7a-4a`

Let's go ahead evaluate when a = 8;

`7(8)-4(8)=56-32=24`