Answer: 126 samples
Step-by-step explanation:
Given that :
Standard deviation (σ) = 0.7
Mean (m) = 7.3
Error (E) = 0.08
α = 80%
The sample size n can be obtained using the relation :
n = [(Zcrit * standard deviation) / Error]^2
The Zcritical at 80% = 1.282
Hence,
n = ((1.282 * 0.7) / 0.08)^2
n = (0.8974 / 0.08)^2
n = 11.2175^2
n = 125.83230625
n = 126
Answer:
A= x=-4
B= x=4
C= y=4
D= y=-2
Step-by-step explanation:
We are given that
<span>d(p) represents the number of dollars jason gets paid
</span><span>t(p) represents the number of Jason's dollars that go to taxes
</span><span>t(p)=500
Then
d(p) = 500 / 0.25
d(p) = 2000
The value of
</span><span>(d-t)(p) = 2000 - 500 = 1500</span>
Step-by-step explanation:
we would a small text, or give us a picture so we can read it, then we can answer this question, without it, I'd have to guess
If we place the books using their width on the length of the book shelf then
each book occupy the length : 9.3* 10^-2 meter on the length of the book shelf .Here width of book and length of book shelf is in same unit , that is meter . so we do not have to do any work with changing the unit .
number of books = length of the book shelf divide by width of the book
That is : 1.865 x 10 ^1 divide by 9.3x 10^-2 = 200.53
Because number of books placed can not be a decimal number so we would place only 200 books
Answer :200 books . Option A is correct .