I thibk its 5 tell if im right
Answer:
Step-by-step explanation:
If the exchange rate between British pounds (£) and US dollars ($) is £1 = $1.40, how much is £200 worth in dollars?
Include the $ sign in your answer.
280
$142.86
280.00
$280.00
$280
42.86
Answer:
p=0.063
Step-by-step explanation:
Let X be number of the certain brand of jelly beans that are made so that each package contains about the same number of beans.
X is N(375, 8)
YOu are collecting a sample size of
n = 8
Findings from the sample


(Left tailed test at 5% level)
Since sample size is small though sigma is known we use Z test, since norm
Mean difference = -5
Std error = 
Test statistic t = mean diference / std error = 
df = n-1 =5
p value = 0.063
Answer:
The solution proves that the equation has a non-trivial solution.
Step-by-step explanation:
We want to show that the equation has nontrivial solutions for which 
Let
be a set of non-zero numbers such that that 
Because T is a linear solution:

= 
= 
= 
= 
= 0
This shows that
are linearly independent with the mapping resulting in a non-trivial solution.