Answer:
(B) The exponents should be subtracted by the quotient rule of exponents
Step-by-step explanation:
Let's examine how this was solved.

He first rose everything in the parentheses to the second power, which is just multiplying all the exponents by 2. This is correct.

He then combined the numerator exponents. Exponent rules say that
, so he should have ended up with
, which he did. This is correct.

Now, what he did in the final step is wrong. He added the exponents. However, exponent rules tell us that when we have
, it equals
.

So the final answer should have been 
Hope this helped!
Answer:
the angles are supplementary so if you ADD them they will equal 180 so the answer is the third one
Step-by-step explanation:
Answer:
$2 each
Step-by-step explanation:
5×2=$10 $40-$10=$30
Hope this helped! :)
Answer:
16 Units.
Step-by-step explanation:
Given:
THIS CASE ⇒ AC = BD
⇒ Substitute the values
2 (x - 3) = x + 5
⇒ Clear the value of x
2x - 6 = x + 5
2x - x = 5 + 6
x = 11
⇒ Substitute the value of x in any of the equations
11 + 5 = 16
⇒ Length of each diagonal is 16 units.
5. since .6 is greater than 5, we round up.