Answer:
Step-by-step explanation:
Charlie has $27
He spent $3 for kid's meal for his little brother
Remaining money=27-3=$24
Number of Sandwiches he wants to buy = 6
Money he needs to pay for each sandwich = 24/6 = $4
Answer:
if a water pipe bursts over night depends on the pressure of the water but i will say a foot or more an hour
Step-by-step explanation:
Answer:
Step-by-step explanation:
let base be x and height be 3x
we know area of parallelogram is
base*height
ie x*3x=675
3x^2=675
x^2=675/3
x^2=225
x= square root of 225
x=15
therefore base =15
height = 45
17 dollars total for Jose and Mila's jelly beans.
<em>Add 1.5 and 2.75 together to get 4.25</em>
<em>Multiply 4.25 by 4 to get 17</em>
Complete Question
A biologist reports a confidence interval of (3.5,4.9) when estimating the mean height (in centimeters) of a sample of seedlings. What is the estimated margin of error and the sample mean?
Answer:
The margin of error is ![E = 0.7](https://tex.z-dn.net/?f=E%20%3D%200.7)
The sample mean is ![\= x = 4.2](https://tex.z-dn.net/?f=%5C%3D%20%20x%20%20%3D%20%204.2)
Step-by-step explanation:
from the question we are told that
The upper limit is ![k = 4.9](https://tex.z-dn.net/?f=k%20%20%3D%20%204.9)
The lower limit is ![r = 3.5](https://tex.z-dn.net/?f=r%20%3D%203.5)
Generally the margin of error is mathematically represented as
![E = \frac{k - r}{ 2}](https://tex.z-dn.net/?f=E%20%3D%20%20%5Cfrac%7Bk%20-%20r%7D%7B%202%7D)
![E = \frac{ 4.9 - 3.5 }{2}](https://tex.z-dn.net/?f=E%20%3D%20%5Cfrac%7B%204.9%20%20-%20%203.5%20%7D%7B2%7D)
![E = 0.7](https://tex.z-dn.net/?f=E%20%3D%200.7)
Generally the sample mean is mathematically evaluated as
![\= x = k - E](https://tex.z-dn.net/?f=%5C%3D%20%20x%20%3D%20k%20%20-%20%20E)
=> ![\= x = 4.9 - 0.7](https://tex.z-dn.net/?f=%5C%3D%20x%20%20%3D%20%204.9%20-%200.7)
=> ![\= x = 4.2](https://tex.z-dn.net/?f=%5C%3D%20%20x%20%20%3D%20%204.2)