Use the given recursion and starting value of
to find
:
![x_1 = \dfrac{x_0 + \frac6{x_0}}2 = \dfrac{2.4 + \frac{6}{2.4}}2 = 2.45](https://tex.z-dn.net/?f=x_1%20%3D%20%5Cdfrac%7Bx_0%20%2B%20%5Cfrac6%7Bx_0%7D%7D2%20%3D%20%5Cdfrac%7B2.4%20%2B%20%5Cfrac%7B6%7D%7B2.4%7D%7D2%20%3D%202.45)
Do the same for
and
:
![x_2 = \dfrac{x_1 + \frac6{x_1}}2 = \dfrac{2.45 + \frac6{2.45}}2 \approx 2.44949](https://tex.z-dn.net/?f=x_2%20%3D%20%5Cdfrac%7Bx_1%20%2B%20%5Cfrac6%7Bx_1%7D%7D2%20%3D%20%5Cdfrac%7B2.45%20%2B%20%5Cfrac6%7B2.45%7D%7D2%20%5Capprox%202.44949)
![x_3 = \dfrac{x_2+\frac6{x_2}}2 \approx \dfrac{2.44949 + \frac6{2.44949}}2 \approx \boxed{2.44949}](https://tex.z-dn.net/?f=x_3%20%3D%20%5Cdfrac%7Bx_2%2B%5Cfrac6%7Bx_2%7D%7D2%20%5Capprox%20%5Cdfrac%7B2.44949%20%2B%20%5Cfrac6%7B2.44949%7D%7D2%20%5Capprox%20%5Cboxed%7B2.44949%7D)
(That's not a mistake. This just tells you that the 2nd and 3rd iterates are very close together and have at least the same first 5 digits after the decimal.)
Answer:
i think it's C
Step-by-step explanation:
Answer:
Faisal receives $241
Ahmed receives $482
Walid receives $723
Step-by-step explanation:
I am going to build a system of equations to solve this question.
We have that:
x is the amount that Faysal received.
y is the amount that Ahmed received.
z is the amount that Walid received.
Ahmed, Walid and Faisal made $1446 profit from selling used books.
This means that
![x + y + z = 1446](https://tex.z-dn.net/?f=x%20%2B%20y%20%2B%20z%20%3D%201446)
Ahmed to receive double amount of Faisal
This means that ![y = 2x](https://tex.z-dn.net/?f=y%20%3D%202x)
Walid to receive triple amount of Faisal.
This means that ![z = 3x](https://tex.z-dn.net/?f=z%20%3D%203x)
So
![x + 2x + 3x = 1446](https://tex.z-dn.net/?f=x%20%2B%202x%20%2B%203x%20%3D%201446)
![6x = 1446](https://tex.z-dn.net/?f=6x%20%3D%201446)
![x = \frac{1446}{6}](https://tex.z-dn.net/?f=x%20%3D%20%5Cfrac%7B1446%7D%7B6%7D)
![x = 241](https://tex.z-dn.net/?f=x%20%3D%20241)
![y = 2x = 2*241 = 482](https://tex.z-dn.net/?f=y%20%3D%202x%20%3D%202%2A241%20%3D%20482)
![z = 3x = 3*241 = 723](https://tex.z-dn.net/?f=z%20%3D%203x%20%3D%203%2A241%20%3D%20723)
Faisal receives $241
Ahmed receives $482
Walid receives $723
Answer:
3.30
Step-by-step explanation:
You multiply the 5.5 pounds by the 80 cents then multiply the awnser of that by .25 and subtract that from the awnser of 5.5*.80
<span>SALES: 5x² + 2x – 80
</span>- COST: 5x² – x + 100
= ------------------
PROFIT: 0x²+3x-180
(+3x because we subtracted a negative (-x), which is called adding, similarly taking away 100 from negative 80 is -180.)
Checking:
5x² + 2x – 80
5(500)²+2(500)-80 = 1,250,920
5x² – x + 100
5(500)² – (500) + 100= 1,249,600
Profit = 1,250,920 - 1,249,600 = 1,320
0(500)²+3(500)-180 = 1,320 YAY! {:-)
Double Checking:
5x² + 2x – 80
5(5000)²+2(5000)-80 = 125,009,920
5x² – x + 100
5(5000)² – (5000) + 100= 124,995,100
Profit = 125,009,920 - 124,995,100 = 14,820
0(5000)²+3(5000)-180 = <span>14,820</span> YAY! {:-)