If (x, -4) is a solution to the equation 4x-5y=8, what is the value of x?

x=-3

Step-by-step explanation:

4x-5y=8

Substitute the value -4 in for y

4x -5(-4) = 8

4x +20 = 8

Subtract 20 from each side

4x+20-20 = 8-20

4x = -12

Divide each side by 4

4x/4 = -12/4

x = -3

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%