Answer:
d. m = 9/4
Step-by-step explanation:
You want the solution to ...
1/√8 = 4^(m -3)
Powers of 2
It will be convenient to rewrite this equation in terms of powers of 2.
[tex]\dfrac{1}{\sqrt{8}}=4^{(m-3)}\qquad\text{given}\\\\\dfrac{1}{2^{\frac{3}{2}}}=(2^2)^{(m-3)}\qquad\text{using powers of 2}\\\\-\dfrac{3}{2}=2(m-3)\qquad\text{equate the exponents of 2}\\\\-\dfrac{3}{4}=m-3\qquad\text{divide by 2}\\\\\boxed{m=\dfrac{9}{4}}\qquad\text{add 3}[/tex]
