Your first steps are correct. Mult. the given fraction by (1+sqrt(5)) / (1+sqrt(5)).
Result: 8(1 + sqrt(5) ) 8(1 + sqrt(5) )
------------------- = ----------------------
1 - 5 -4
Must keep that denominator (-4).
Answer:
D
Step-by-step explanation:
I just plugged in the numbers
Change 3/4 to 0.75 and then plug in 8
0.75(8 + 12) = 15
0.75(20) = 15
15 = 15
Hope this helps :)
Answer:
you need to do math. it is very easy
Answer:
michelle, kaley, and Rebecca.
Step-by-step explanation:
They have sold 100 tickets so far ($75), they need to sell 380 ($285) tickets in total and need to sell 280 more tickets.
Michelle was wrong because she should have divided 210 (how much more money they need to sell on tickets) into .75 (which is how much each ticket costs).
Kaley was wrong because she should have also divided 210 into .75 like Michelle.
Rebecca should have also divided 210 into .75.
Eva was the only correct one.
Step-by-step explanation:
All of these terms have a common factor of 2, and when we take that out we get 2(x² + x - 6). To factor the polynomial in the parentheses, we have to find 2 numbers with a product of -6 and a sum of 1, and these are 3 and -2. Therefore, the final answer is 2(x + 3)(x - 2).
Hope this helps!
