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 :

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

Identify the mixed number that is equivalent to four and three-fifths

the linear equation of the line in slope-intercept form

Jonathan has a board 9 yards long. He cuts the board into 4 equal pieces to make a wooden frame for his window. What is the length of each piece?

Represent the following in extensive game format: A diplomat can choose to summon a terrorist his country is sponsoring to a meeting, or not. If he does not, an

how to solve this inequality X^2(1-X)

The number 28 is increased to 40. What is the percentage by which the number was increased, to the nearest tenth of a percent

suppose y varies directly as x. if x=7 when y=21, find x when y=30

When magnesium is burnt in air, a powdery ash X is formed, X on dissolving in water forms y.i)what are X and Y?

(a) In a class of 40 students, 18 passed Mathematics, 19 passed Accounts, 16 passed Economics, 5 Mathematics and Accounts only, 6 Mathematics only, 9 Accounts o

Consider the equation: -34 = x² – 14x + 10 1) Rewrite the equation by completing the square. Your equation should look like (x + a)² = b or (x − c)² = d. 2)