(a/b)^x−2=(b/a)^x−7. What is the value of x ? A.1.5 B.4.5 C.7.5 D.9.5 Answer and Feedback Answer:B Feedback:(a/b)^x−2=(b/a)^x−7 (a/b)^x−2=(a/b)^-x−7 ⇒x−2=−(x−7) ⇒x−2=−(x−7) ⇒x−2=−x+7 2x=9 x=9/2=4.5 do you want? view more test Xem thêm Share this post Some other questions you may be interested in. You must not ……………………… this secret to anyone. I forgot .................... the door. You don't need ....................... about me. You need not …………………… for my drinks. She refused ......................... with me. I was forced ....................... It won’t be any good my ............................. to him about it. It is no use for us ................................... to convince him of this. It wouldn’t be much good for us .............................. to the minister about it. It was a difficult business for me ................................ the car with such a weak battery.
