hatemee hatemee
  • 24-04-2022
  • Mathematics
contestada

If 10^2y = 25, then 10^-y equals:
(a) -1/5,
(b) 1/625,
(c) 1/50,
(d) 1/25,
(e) 1/5​

Respuesta :

Аноним Аноним
  • 24-04-2022

solution:

[tex] {10}^{2y} = 25[/tex]

[tex] {(10)}^{y2} = {5}^{2} [/tex]

[tex] {10}^{y} = 5[/tex]

[tex] \frac{1}{10 {y} } = \frac{1}{5} [/tex]

[tex] {10}^{ - y} = \frac{1}{5} [/tex]

answer= option e.

Answer Link
ciberneticotrix ciberneticotrix
  • 24-04-2022
Answer
(e) 1/5

Explanation
5^2=5*5=25
Answer Link

Otras preguntas

The product of two positive numbers is 1,800. One number is twice the other number. The equation to determine the two numbers, with x representing the value of
A dog gives birth to three puppies one year. three years later, she gives birth to six puppies. which type of life history pattern is characteristic of this org
The reduction of the chromosome number during meiosis is most important for__?
In monopolistic competition firms gain some degree of market power
In what form are summaries generally written?
Find the perimeter of a square with diagonal 10 centimeters. Round to the nearest tenth.
help me asap and thx u
Which country invaded afghanistan in the 1970s? a. the soviet union b. the united states c. pakistan d. india reset selection
The leg of a right triangle is 2 units and the hypotenuse is 4 units. What is the length, in units, of the other leg of the triangle? A 2 units B. 6 units C.^12
How did the acquisition of new land change the united states and eventually lead to conflict?