ginadesor7208 ginadesor7208
  • 03-07-2017
  • Mathematics
contestada

Solve 2 log x = log 64.
A. x = 8
B. x = ±8
C. x = 32
D.x = 128

Respuesta :

tonb
tonb tonb
  • 06-07-2017
2 log x is the same as log x².
So x²=64, so x=8. Not -8 because log of negative number is undefined.

Answer A.
Answer Link

Otras preguntas

Why did the confederates decide to target fort sumter in april, 1861?
If a quarter is tossed in the air, what is the probability it will land on tails? 1 / 4 1 / 3 1 / 2 2 / 3
why was slves brought in United States
Salma purchased a prepaid phone card for $15 Long distance calls cost 6 cents a minute using this card. Salma used her card only once to make a long distance ca
20% of 140 is what number A)280 B)120 C)28 D)12
Randy was given a prescription for an antidepressant. his psychiatrist also gave him a long list of foods to avoid and warned randy that consuming any of the fo
list three values that make this inequality true 2n<6
neutralization, the chemical reaction combining an acid with a base to produce a neutral solution produce produces a salt and
Find the lengths of the sides of the rectangle if it is known that one of them is 14cm bigger than the other, and the diagonal of the rectangle is 34Cm
In 2009, impaired drivers killed 154 _________. A. child passengers of vehicles B. other motorists C. pedestrians D. None of the above