Acircular piece of glass has a radius of 0.8 meters. the glass sells for $4.60 per m².

what is the total cost of the circular piece of glass?

use 3.14 for pi.

$2.01

$9.24

$23.11

$36.98

Data are collected to see how many ice-cream cones are sold at a ballpark in a week. day 1 is sunday and day 7 is the following saturday. use the data from the table to create a scatter plot.

What is the perimeter of a rectangular building that is 80 feet wide and 140 feet deep?

(b) suppose that consolidated power decides to use a level of significance of α = .05, and suppose a random sample of 100 temperature readings is obtained. if the sample mean of the 100 temperature readings is x⎯⎯ = 60.990, test h0 versus ha and determine whether the power plant should be shut down and the cooling system repaired. perform the hypothesis test by using a critical value and a p-value. assume σ = 5. (round your z to 2 decimal places and p-value to 4 decimal places.)