Answer:
46.375
Step-by-step explanation:
Given information:
![f(x)=5x^2-2x](https://tex.z-dn.net/?f=f%28x%29%3D5x%5E2-2x)
where, 0 ≤ x ≤ 3.
We need to divde the interval [0,3] in 6 equal parts.
The length of each sub interval is
![\dfrac{b-a}{n}=\dfrac{3-0}{6}=0.5](https://tex.z-dn.net/?f=%5Cdfrac%7Bb-a%7D%7Bn%7D%3D%5Cdfrac%7B3-0%7D%7B6%7D%3D0.5)
Right end points are 0.5, 1, 1.5, 2, 2.5, 3.
The value function on each right end point are
![f(0.5)=5(0.5)^2-2(0.5)=0.25](https://tex.z-dn.net/?f=f%280.5%29%3D5%280.5%29%5E2-2%280.5%29%3D0.25)
![f(1)=5(1)^2-2(1)=3](https://tex.z-dn.net/?f=f%281%29%3D5%281%29%5E2-2%281%29%3D3)
![f(1.5)=5(1.5)^2-2(1.5)=8.25](https://tex.z-dn.net/?f=f%281.5%29%3D5%281.5%29%5E2-2%281.5%29%3D8.25)
![f(2)=5(2)^2-2(2)=16](https://tex.z-dn.net/?f=f%282%29%3D5%282%29%5E2-2%282%29%3D16)
![f(2.5)=5(2.5)^2-2(2.5)=26.25](https://tex.z-dn.net/?f=f%282.5%29%3D5%282.5%29%5E2-2%282.5%29%3D26.25)
![f(3)=5(3)^2-2(3)=39](https://tex.z-dn.net/?f=f%283%29%3D5%283%29%5E2-2%283%29%3D39)
Riemann sum:
![\sum_{n=1}^6 f(x_n)\Delta x_n](https://tex.z-dn.net/?f=%5Csum_%7Bn%3D1%7D%5E6%20f%28x_n%29%5CDelta%20x_n)
![Sum=[f(0.5)+f(1)+f(1.5)+f(2)+f(2.5)+f(3)]\times 0.5](https://tex.z-dn.net/?f=Sum%3D%5Bf%280.5%29%2Bf%281%29%2Bf%281.5%29%2Bf%282%29%2Bf%282.5%29%2Bf%283%29%5D%5Ctimes%200.5)
![Sum=[0.25+3+8.25+16+26.25+39]\times 0.5](https://tex.z-dn.net/?f=Sum%3D%5B0.25%2B3%2B8.25%2B16%2B26.25%2B39%5D%5Ctimes%200.5)
![Sum=92.75\times 0.5](https://tex.z-dn.net/?f=Sum%3D92.75%5Ctimes%200.5)
![Sum=46.375](https://tex.z-dn.net/?f=Sum%3D46.375)
Therefore, the Riemann sum with n = 6 is 46.375.
C. $340 you would add the money up and then subtract both checks he wrote which is $341 and the nearest 10 would be $340
D. $500 the same step as the last but don’t subtract friday which would be $497 and the closest 10 is $500
Answer:
That number rounds to the nearest hundredth to this number: 382.99
Answer:
Option C: 11.7%
Step-by-step explanation:
The number of elements in sample space when a coin is flipped 10 times will be:
![n(S) = 2^{10} \\= 1024](https://tex.z-dn.net/?f=n%28S%29%20%3D%202%5E%7B10%7D%20%5C%5C%3D%201024)
Let A be the event that the tails appear 7 times:
Then,
![C_{(n,k)}=\frac{n!}{(k!)(n-k)!} \\where\\n=population\\k=picks\\In our case, k =7\\and\\n=10\\C_{(10,7)}= \frac{10!}{(7!)(10-3)!}\\= 120\\So, \\P(A) = \frac{n(A)}{n(S)} \\P(A) = \frac{120}{1024} \\= 0.1171\\](https://tex.z-dn.net/?f=C_%7B%28n%2Ck%29%7D%3D%5Cfrac%7Bn%21%7D%7B%28k%21%29%28n-k%29%21%7D%20%5C%5Cwhere%5C%5Cn%3Dpopulation%5C%5Ck%3Dpicks%5C%5CIn%20our%20case%2C%20k%20%3D7%5C%5Cand%5C%5Cn%3D10%5C%5CC_%7B%2810%2C7%29%7D%3D%20%5Cfrac%7B10%21%7D%7B%287%21%29%2810-3%29%21%7D%5C%5C%3D%20120%5C%5CSo%2C%20%5C%5CP%28A%29%20%3D%20%5Cfrac%7Bn%28A%29%7D%7Bn%28S%29%7D%20%5C%5CP%28A%29%20%3D%20%5Cfrac%7B120%7D%7B1024%7D%20%5C%5C%3D%200.1171%5C%5C)
Converting into percentage:
![P(A) = 0.1171*100=11.7%](https://tex.z-dn.net/?f=P%28A%29%20%3D%200.1171%2A100%3D11.7%25)
So, option C is correct ..
The graph that represents viable values for y = 2x is Option A.
<h3>What is a Straight Line Function ?</h3>
A straight line function is given by y = mx +c , where m is the slope and c is the y intercept.
The given equation is y = 2x
here m = 2
x is the number of pounds of rice scooped and purchased from a bulk bin
y is the total cost of the rice
as both the data cannot be negative , Option C , D is out of choice
The Option 1 represents a straight line and it starts at the origin which is satisfied by y = 2x as y = 0 , at x = 0
ends at point (2.5, 5) giving a slope of m =2 ,
Therefore , The graph that represents viable values for y = 2x is Option A.
To know more about Straight Line equation
brainly.com/question/959487
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