as you can see above... notice the middle term, in a perfect square trinomial, the middle term is, 2 times the guy on the left, without the exponent, and times the guy on the right
so.. .what we have here ... let's see yours is
so.. we have a missing guy there, the guy on the right hmm what the dickens would that be anyway?
well... let us use the middle guy
aha ... there's our guy on the right.... so now we know is 1/5
now... let us call or very good friend Mr Zero, 0
if we "add" whatever, we also have to "subtract" whatever, since all we're really doing is, borrowing from 0
thus
![\bf x^2-\cfrac{2}{5}x\implies x^2-\cfrac{2}{5}x\quad +\left( \cfrac{1}{5} \right)^2\quad -\left( \cfrac{1}{5} \right)^2 \\\\\\ \left[ x^2-\cfrac{2}{5}x +\left( \cfrac{1}{5} \right)^2 \right]-\left( \cfrac{1}{5} \right)^2\implies \left( x-\cfrac{1}{5} \right)^2 - \cfrac{1^2}{5^2} \\\\\\ \left( x-\cfrac{1}{5} \right)^2 -\cfrac{1}{25}](https://tex.z-dn.net/?f=%5Cbf%20x%5E2-%5Ccfrac%7B2%7D%7B5%7Dx%5Cimplies%20x%5E2-%5Ccfrac%7B2%7D%7B5%7Dx%5Cquad%20%2B%5Cleft%28%20%5Ccfrac%7B1%7D%7B5%7D%20%5Cright%29%5E2%5Cquad%20-%5Cleft%28%20%5Ccfrac%7B1%7D%7B5%7D%20%5Cright%29%5E2%0A%5C%5C%5C%5C%5C%5C%0A%5Cleft%5B%20x%5E2-%5Ccfrac%7B2%7D%7B5%7Dx%20%2B%5Cleft%28%20%5Ccfrac%7B1%7D%7B5%7D%20%5Cright%29%5E2%20%5Cright%5D-%5Cleft%28%20%5Ccfrac%7B1%7D%7B5%7D%20%5Cright%29%5E2%5Cimplies%20%5Cleft%28%20x-%5Ccfrac%7B1%7D%7B5%7D%20%5Cright%29%5E2%20-%20%5Ccfrac%7B1%5E2%7D%7B5%5E2%7D%0A%5C%5C%5C%5C%5C%5C%0A%5Cleft%28%20x-%5Ccfrac%7B1%7D%7B5%7D%20%5Cright%29%5E2%20-%5Ccfrac%7B1%7D%7B25%7D)
Answer:
The answer is 60 minutes.
Step-by-step explanation:
12 * 5 = <em>60</em>
15 * 4 = <em>60</em>
10 * 6 = <em>60</em>
Answer:
2
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
There is four graphs that are given to you and you must identify which one is logical. For you I'll explain how this works. Suppose you rented a bus but you went by yourself so that means you'll have to pay the full 400. However, if you have a buddy then you'll have to pay 200 while your buddy pays the other 200.
Basically 400/x
x=the amount of people going on the trip.
The reason why it's not C since you'll notice that the 3rd dot nearest to the left is 200 which 200 times 3 doesn't equal up to 800.
