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

to heat 1g of water by 1 C requires A) 1 calorie b)1 Carlorie c) 1 Joule d) 1 watt
What are two common uses of igneous rocks?
how many times greater is one hour than one minute
6x+5y=7 2x-4y=-26 can you solve in steps
15% of Alina’s workout consisted of cardio exercise. 25% of Dane’s workout consisted of cardio exercise. Which statement must be true? If they worked out for th
What were the Native Americans trying to do when they took over Alcatraz? A. acquire more housing B. make people aware of Indian grievances C. take the warde
During the first three Presidential elections the President and the Vice-President were chosen by: Congress Republicans electoral college their peers
How do you calculate experimental mole ratio?
PLEASE HELP! i NEED THE ANSWER TO THIS!In what region on the map did Judaism develop? A. B. C. D.
What are great thesis for 1.) We should save the Brazilian Rainforest 2.) World war 2 3.) Winter sports are funI need immediate Help