Answer:
speed of light is 3 x
meters per second.
Step-by-step explanation:
Given : The speed of light is 3 x
kilometers per second.
To find : What is that in standard form.
Solution : We have given 3 x
kilometers per second.
First we convert it in to meter per sec.
We can write
3 x
= 300000 kilometer per second .
We know that 1 km = 1000 meter.
Then 300000000 meter per second
Now, 3 x
meter per second.
Therefore, speed of light is 3 x
meters per second.
Answer:
║x - 175,000║≤ 20,000
Step-by-step explanation:
Let x be the amount the Fraziers are willing to pay. Since the house costs $175,000 and they are willing to deviate from this price no more than $20,000, so x = $175,000 ± $20,000.
So, x - 175,000 = ± 20000
║x - 175,000║= 20,000
But we require
║x - 175,000║≤ 20,000
which is our required open sentence.
A. 3x2=6 Use the formula base time height to solve
Answer:
a)
90% confidence interval for the mean grading time of all composition papers.
(12.47981 , 13.52019)
b)
Appropriate inequality
The interval is ( 12.47981 < μ < 13.52019)
Step-by-step explanation:
<u><em>Explanation</em></u>:-
a)
Given sample size 'n' = 40
Mean of the sample = 13 minutes
standard deviation = 2 min
level of significance = 0.10 or 90%
90% confidence interval for the mean grading time of all composition papers.
![( x^{-} - Z_{0.1} \frac{S.D}{\sqrt{n} } , x^{-} + Z_{0.10} \frac{S.D}{\sqrt{n} } )](https://tex.z-dn.net/?f=%28%20x%5E%7B-%7D%20-%20Z_%7B0.1%7D%20%5Cfrac%7BS.D%7D%7B%5Csqrt%7Bn%7D%20%7D%20%2C%20x%5E%7B-%7D%20%2B%20Z_%7B0.10%7D%20%5Cfrac%7BS.D%7D%7B%5Csqrt%7Bn%7D%20%7D%20%29)
![( 13 - 1.645 \frac{2}{\sqrt{40} } , 13 +1.645 \frac{2}{\sqrt{40} } )](https://tex.z-dn.net/?f=%28%2013%20-%201.645%20%5Cfrac%7B2%7D%7B%5Csqrt%7B40%7D%20%7D%20%2C%2013%20%2B1.645%20%5Cfrac%7B2%7D%7B%5Csqrt%7B40%7D%20%7D%20%29)
( 13 - 0.52019 , 13 + 0.52019)
(12.47981 , 13.52019)
b)
The interval is ( 12.47981 < μ < 13.52019)
Answer:
Jeffery because the other dude go the 2 numbers wrong (he put the x coordinates on y and y on x)