Which polynomial is a perfect square trinomial?

A) 9x^2-12x+4

Step-by-step explanation:

to find out whether an equation is a perfect square when we take the square root of "a" and the square root of "c" and double their sum. The result should be the middle term, -12

so

square root of 9; 3

square root of 4: 2

2((3*-2))=-12

now we can take the square root of 9x^2(which is 3x) and the square root of 4(-2) and put it in a expression like this

(3x-2)^2

hope this helps!

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%

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step-by-step explanation: