Here are summary statistics for randomly selected weights of newborn girls: n=167, x=29.6hg, s=6.9hg construct a confidence interval estimate of the mean. Use a 90% confidence level. Are these results very different from the confidence interval 28.8hg<û<31.4hg with only 14 sample values, x=30.1hg and s=2.7hg? What is the confidence interval for the population mean û?

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

a = 3.14

b = 18

c = 18/5 or 3.6 or 3 3/5

step-by-step explanation:

step-by-step explanation:

given expression is .

now we need to simplify the given expression .

we know that square root is equivalent to the power 1/2. so that means we can take half of the exponents to get the square root of given expression.

expanding that will give a very very large number so let's keep answer in exponent form.