Perform the following application. use 3.14 for and round to the nearest tenth. a culvert has a circumference of 280 cm. you wish to seal off both of its ends. what is the culvert's radius? cm. how much material will you need? sq. cm.

In the diagram, the measure of angle 9 is 85° which angle must also measure 85°?

Cody started biking to the park traveling 15 mph, after some time the bike got a flat so cody walked the rest of the way, traveling 4 mph. if the total trip to the park took 6 hours and it was 46 miles away, how long did cody travel at each speed? solve using rate times time= distance

Recall that the owner of a local health food store recently started a new ad campaign to attract more business and wants to know if average daily sales have increased. historically average daily sales were approximately $2,700. the upper bound of the 95% range of likely sample means for this one-sided test is approximately $2,843.44. if the owner took a random sample of forty-five days and found that daily average sales were now $2,984, what can she conclude at the 95% confidence level?