First, let's start with the part that says twice a number. If the number is n, then twice a number would be 2n. Then if we want to write out six less than two times a number, it would be six less than 2n or 2n-6 so the second choice.
Hope this helps
I think its 1 im not sure
(8*4)xy/ (8*3)yz= 4x/3z
Break apart the each expression to its simpler parts. The 8s cross each other out and you have 4xy/3yz left. Then you cancel the variables that match. The only ones are the ys. Hence the answer is what you have left over and cannot cancel out or reduce
Hopes this helps
When multiplying two real numbers, the following rules are applied regarding the sign:
(positive)*(positive) = (positive)
(negative)*(negative) = (positive)
(positive)*(negative) = (negative)
(negative)*(positive) = (negative)
This means that like signs produce a positive product while different signs produce a negative product.
Comparing the choices to the above mentioned explanation, we will find that the correct choice is:
<span>B. If both numbers are both positive or both negative then the result is positive, if they are different then the result is negative.</span>
