A staircase has treads that are 10 inches deep with 7 inch high risers. if the staircase needs to rech a total height of 8ft, 2in how much floor space needs to be allowed for the staircase?

  130 inches

Step-by-step explanation:

The 8'2" rise is 98 inches, so (98 in)/(7 in) = 14 risers are required. Each riser but the first is preceded by a 10-inch tread. The horizontal space between the first riser and the last is 13×10 inches = 130 inches.

In general, a landing is required at each end of the stairs. That is usually about 3', so a total of 72" + 130" = 202 inches (or 16'10") of horizontal distance may be required. Your building code may vary.

details

step-by-step explanation:

required rate of return = 0.166 = 16.6%

step-by-step explanation:

under the capital asset pricing model (capm), the required or expected rate of return for a particular security or asset is given using the formula:

required rate of return = risk-free rate + beta*(market risk premium)

we are given that;

risk-free rate = 4% = 0.04

beta = 1.4

market risk premium = 9% = 0.09

we simply plug these values into the above formula;

required rate of return = 0.04 + 1.4*(0.09)

required rate of return = 0.04 + 0.126

required rate of return = 0.166 = 16.6%