Answer:
Alexandra drove 980 miles
Step-by-step explanation:
70×14=980
Each person received 3 doughnuts, do 6 times 4 which is 24 and divide that among 8, its 3
a. define variables for the quantities that are changing (be specific).
We define variables:
t = time in second
d = distance traveled
The variables that are changing are t and d.
As the time increases, the distance decreases.
b. what does it mean to say bob walks at a constant speed of 9.3 feet per second?
It means that for every second that passes, Bob walks 9.3 feet.
c. consider the formula d = 4320 - 9.3t i. what does t represent? ii. what does 9.3t represent? iii. what does d represent?
For this case we have:
t = represents the time in seconds
9.3t = represents the distance traveled by Bob
d = represents the distance Bob must travel to get to the bus stop.
Answer:
6.75 hrs are missing
Step-by-step explanation:
First, change all fractions into decimals:
8 = 8
7 1/4 = 7 + 0.25 = 7.25
8 1/2 = 8 + 0.50 = 8.50
Next, add all numbers gotten together:
8 + 7.25 + 8.50 = 23.75
Subtract the number gotten from the total
30.5 - 23.75 = 6.75
~
Answer:
![CI=189.5,194.5](https://tex.z-dn.net/?f=CI%3D189.5%2C194.5)
Step-by-step explanation:
From the question we are told that:
Sample size ![n=40](https://tex.z-dn.net/?f=n%3D40)
Mean ![\=x =192](https://tex.z-dn.net/?f=%5C%3Dx%20%3D192)
Standard deviation![\sigma=8](https://tex.z-dn.net/?f=%5Csigma%3D8)
Significance Level ![\alpha=0.05](https://tex.z-dn.net/?f=%5Calpha%3D0.05)
From table
Critical Value of ![Z=1.96](https://tex.z-dn.net/?f=Z%3D1.96)
Generally the equation for momentum is mathematically given by
![CI =\=x \pm z_(a/2) \frac{\sigma}{\sqrt{n}}](https://tex.z-dn.net/?f=CI%20%3D%5C%3Dx%20%5Cpm%20z_%28a%2F2%29%20%5Cfrac%7B%5Csigma%7D%7B%5Csqrt%7Bn%7D%7D)
![CI =192 \pm 1.96 \frac{8}{\sqrt{40}}](https://tex.z-dn.net/?f=CI%20%3D192%20%5Cpm%201.96%20%5Cfrac%7B8%7D%7B%5Csqrt%7B40%7D%7D)
![CI=192 \pm 2.479](https://tex.z-dn.net/?f=CI%3D192%20%5Cpm%202.479)
![CI=189.5,194.5](https://tex.z-dn.net/?f=CI%3D189.5%2C194.5)