Boxes of Cruncho cereal have a mean mass of 312 grams with a standard deviation of 20 grams. For random samples of 50 boxes, what interval centered on the mean of the sampling distribution
captures 99.7% of the sample means? If necessary, round to the nearest tenth. Enter the interval from
least to greatest.
For random samples of 50 boxes, 99.7% of the sample means fall between
grams.
grams and

the range is 19

step-by-step explanation:

the range is biggest number minus the smallest, so in this case it would be

41 - 22 = 19

f(x) = x^3 -2x^2 -3x

x( x^2 -2x-3)

x( x^2 +x -3x -3)

x( x(x+1) -3(x+1))

x( x-3)( x+1)

so zeroes are 0, 3,-1

its (2) option

arrange the equations with like terms in columns.

analyze the coefficients of x or y.

add the equations and solve for the remaining variable.

substitute the value into either equation and solve.

check the solution.

step-by-step explanation:

whats the question?

step-by-step explanation: