Let f be a function such that f(x)=2x-4 is defined on the domain.2 is less than or equal to x and x is lss than or equal to 6. the range of the function is
a) 0 is less thanor equal to and y is less than or equal to 8
b)0 is less than or equal to y and is less than infinity
c)2 is less than or equal to y andy is less than or equal to 6
d)negative infinity is less than y and y is less than infinity

Option A.

Step-by-step explanation:

The given function is  

It is defined on the domain .

We need to find the range.

Range is the set of output values.

Multiply 2 on each side.

Subtract 4 from each side.

The range of the function is .

Therefore, the correct option is A.

7.3

step-by-step explanation:

d. 24+-0.114

step-by-step explanation:

the question requires us to calculate the approximate 95% confidence interval for the mean number of ounces of ketchup per bottle in the sample given the following statistics;

sample mean = 24

standard deviation, σ = 0.4

sample size , n = 49

the confidence interval for a population mean is calculated using the formula;

sample mean ± z-score*(σ/sqrt(n))

the z-score associated with a 95% confidence interval, from the standard normal tables, is;

1.96

substituting these values into the formula;

24 ± 1.96*(0.4/7)

= 24 ± 0.112

from the alternatives given, choice d is closest to the above expression;