a sample of 100 pregnancies were found to take an average of 267 days. the population deviation is known to be 13 days. find a 90% confidence interval for the true population mean.

Kenya is reserving a room in a hotel in France where they use euros (€). The room charge is €75. Suppose the conversion rate is €1 = $1.298. What is the cost of the room in dollars? $57.78 $77.56 $97.35 $129.80

If a parachutist jumped from an airplane flying at an altitude of 10,000 feet and fell at an average free fall speed of 158 feet per second for 17 seconds, what impact will it have on the altitude of the parachutist?

A blue whale has a length of 28,578 millimeters. What is the length of a blue whale in kilometers? Show your work below by writing the conversion factors you use to solve this question

4/9 multiplied by 1/8

Answer these questions: Describe the relationship of input and output values for a composite functions. Is the inverse of a function always a function? Explain.

In triangle abc, ab=90 in, bc=80 in, and angle b measures 50°. what is the approximate perimeter of the triangle? a) 242.4 in. b) 265.3 in. c) 308.3 in. d) 324.1 in.

The sum of two numbers is 180. one number is 5 times the number

What is the vertex of the parobala y = (x-5) (x-1)

7.25 (x + 1.5 · 10)

Simplify: (2x^-2/y^3) ^-4