Question

Question #ea8d7

Answer 1

Use order of operations to get `-7.75`

Explanation:

You just have to use order of operations. Based on the acronym PEMDAS, the order is Parentheses, Exponents, Multiplication, Division, Addition, Subtraction

So we start with the expression `2+6-7\div sqrt(16)×9`

There aren't any parentheses.

There's the exponent on the 16 (square root is the same as to the power of 0.5), so let's deal with that. `sqrt16 = 4`. This changes the expression to: `2+6-7\div 4×9`

Now let's deal with the division. `7\div4=1.75`. This changes the expression to: `2+6-1.75×9`

Now let's deal with the multiplication. `1.75×9=15.75`. This changes the expression to : `2+6-15.75`

Now let's deal with the addition. `2+6` = 8. This changes the expression to: `8-15.75`

Finally we just need to do some subtraction. `8-15.75=-7.75`

So you're answer is `-7.75`