Question

What is the value of the following expression 1.8 + 0.5(y + 6) - 2 t the power of 3 when y = 14?

Answer 1

The value of given expression is 3.8.

Explanation:

Given:

`1.8+0.5(y+6)-2^3`

We need to find the simplified value of given expression using y =14

Solution:

Now we will substitute y =14 we get;

`1.8+0.5(y+6)-2^3\\\\1.8+0.5(14+6)-2^3`

Now using PEDMAS we will first solve the parenthesis we get;

`1.8+0.5*20-2^3`

Now we will solve the exponent function we get;

we know that;

`2^3=8`

So we can say that;

`1.8+0.5*20-8`

Now we will solve the multiplication operation.

`1.8+10-8`

Now we will perform addition operation.

`11.8-8`

And finally we will perform subtraction operation.

3.8

Hence The value of given expression is 3.8.