Answer:
x = 1 and x = -7
Step-by-step explanation:
Given that,
...(1)
and
y = 7 -x ....(2)
Put the value of y from equation (2) in (1)

So,
x = 1 and x = -7
Hence, the solution of the given equations is x = 1 and x = -7
Answer:
Step-by-step explanation:
Given that a nutrition lab tested 40 hot dogs to see if their mean sodium content was less than the 325-mg upper limit set by regulations for "reduced sodium" franks
90% confidence interval is
(317.2, 326.8)mg.
Using confidence intervals,we can check whether null hypothesis is true.
Here

(left tailed test at 10% significance level)
We check whether confidence interval 90% contains the mean value.
We find 325 belongs to the confidence interval
Hence H0 is true
The hot dogs do not satisfy.
I think you multiply rong
Answer:
The horizontal asymptote for the function f(x) is 1/2
Step-by-step explanation:
<u>We were given the function</u>

which could be <u>simplified</u> as

this means that the function is a constant of value 1/2 for all value of x.
Then, in particular, <u>the value of f will be 1/2 for x when x tends to infinite and minus infinite</u>.
And because to find the horizontal asymptote of a function we have to calculate the limit of the function when x tends to infinite or minus infinite, we can ensure that <em>this asymptote has also the value 1/2 of f</em>.
I won't give you the answer straight up but I will give you the definition of what you need to do.. To change a fraction into an equivalent fraction with a denominator of 100: 1. establish how many times the given denominator fits (divides) into 100 2. multiply both the numerator and the denominator by that number.