Laurel is a huge fan of hats, she likes all kinds of hats and recently started collecting them. She already owns 3 hats. She pla
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Answer:
Margin of error at 90% is 0.024
Margin of error at 99% is 0.037
Step-by-step explanation:
Sample size = 1076
A poll found that 64% of a random sample of 1076 adults said they believe in ghosts.
So, No. of adults said they believe ghosts =
So, x = 688
n = 1076
z at 90% confidence is 1.64
So, margin of error at 90% is 0.024
Find the margin of error needed to be 99% confident.
z at 99% confidence is 2.58
So, margin of error at 99% is 0.037
Answer:
x = $3, or x = $11
Step-by-step explanation:
The equation given is
where
- P(x) is the profit, and
- x is the app price
<u>We want app prices (x's) when profit (P(x)) is 0, so plugging in into the equation:</u>
<em>It means (x-3) = 0 OR (x-11) = 0</em>
So, x = 3, or 11
Answer:
Option A.
Step-by-step explanation:
In order to write any polynomial in standard form, we need to check the degree of each term, then write each term in order of degree, from highest to lowest, left to right.
The given polynomial is
Here, the combine degree of x and y in each term is 4.
If we arrange the terms according to the degree of x, then
If we arrange the terms according to the degree of y, then
Hence, the correct option is A.
Answer:
The amount that will go towards the balance is 385.71.
Step-by-step explanation:
The information provided is:
P = Principal of loan = $15,000
r = interest rate = 5.4% p.a. =
n = number of periods = 36
The amount of the monthly payment that will go towards the balance is:
Amount towards the balance = EMI - Interest
First compute the Equated monthly installments (EMI) as follows:
Now compute the interest as follows:
The amount that will go towards the balance is,
Amount towards the balance = EMI - Interest
= 453.21 - 67.5
= 385.71
Thus, the amount that will go towards the balance is 385.71.