Answer: 80 miles
Step-by-step explanation:
320miles/8hours= 40mph
40mph=xmiles/2hrs
40*2= 80 miles
Y result from something being multiplied by X , and the values are always proportional to one another . Notice that putting these points into a ratio of x - value to Y - value result in 1:3 as a simplified version . So , The constant of proportionality is what x is being multiplied by to get y . In this case , it is 3
Answer:
<u><em>Yes, No, Yes, Yes, Yes!</em></u>
Step-by-step explanation:
First Question:
<u>That is correct </u>because if you have $0 in your bank account and you withdraw $30 you will have -$30!
(And you are in debt which everyone hates!)
Second Question:
<u>No</u>, because that would be 125 above ground. You would need to say -125 instead of adding.
Third Question:
<u>Yes!</u> Let's say in the football game you had 70 yards, subtracting the 15 yards which you supposedly had lost would result in 55 yards therefore proving the fact that you did not progress but did the exact opposite!
Fourth Question:
<u>Yes</u>, because you are gaining more on your stock. This results in you getting more of a share in a company or product.
Fifth Question:
To be honest, I don't know if this: "0 feet could represent the altitude of a city that is located at sea level." is a question but I will answer it nonetheless!
<u>Yes,</u> because before right where the sea "starts" is what is called point 0. Meaning that, you are located at sea level!
Answer:
Step-by-step explanation:
From the information given,
Number of sample, n = 200
Probability of success, p = 43/100 = 0.43
q = 1 - p = 1 - 0.43
q = 0.57
For a confidence level of 95%, the corresponding z value is 1.96.
The formula for determining the error bound for the proportion is
z × √pq/n
= 1.96 ×√(0.43 × 0.57)/200
= 1.96 × 0.035 = 0.0686
The upper boundary of the population proportion is
0.43 + 0.0686 = 0.5
The lower boundary of the population proportion is
0.43 - 0.0686 = 0.4
The error in the solution is
phat = 0.43/200 = 0.00215
Also,
[-0.0043, 0.0086] is wrong
