JBJ323 JBJ323
  • 17-12-2020
  • Mathematics
contestada

Find the value of x if 9^1/2 • 9^1/2 = x^√81

Find the value of x if 912 912 x81 class=

Respuesta :

2002898 2002898
  • 17-12-2020

Answer:

(√9)^2x-1/2 = 1/81

3^2x-1/2 = 1/(3)⁴. (as √9 = 3)

3^2x-1/2 = 3^-⁴. (as 1/a^m = a^-m)

as base are equal exponents are equal

so 3 gets cancelled out

2x-1/2 = -4

(4x-1)/2 = -4

4x-1 = -8

x = -7/4

hope this helps

Step-by-step explanation:

Answer Link

Otras preguntas

Is the inequality sometimes,always, or never true ? A. 3(x +3) >- 3 (2 +x) B. 9-x-5<-x+4
Which is one of the three steps in a productive reading strategy? A. Read the story and any expository text that accompanies it—for example, a foreword or an
Name the solutes that raises the boiling point of water the most.
do,k(–7, y) → (14, –5)a 1.25b 2.5c 5 d 10
If y = 3x + 4 were changed to y = 5x + 4, how would the graph of the new function compare with the first one?
Which best illustrates Malala Yousafzai’s story? A. People may be afraid to support you if you want to go to school. B. Women’s roles and human rights ha
acceleration is best defined as the rate of change of blank of an object
What excerpt from the “Good Country People” best exemplifies why Joy/Hulga is a traditional Southern gothic character?
“Great God, direct, and guard him from on high,. And from his head let ev'ry evil fly!” What support does the couplet form support the meaning of the lines? a.)
What compound does most of the work to carry out cell processes