jgrable7244 jgrable7244
  • 15-03-2021
  • Mathematics
contestada

The square root of number that is two bigger than k is twice as big as the square root of the number one less than k. What is k

Respuesta :

fichoh
fichoh fichoh
  • 16-03-2021

Answer:

K = 2

Step-by-step explanation:

Rewriting the expression mathematically;

√(k+2)=2√(k-1)

square both sides

k+2=4(k-1)

k+2=4k-4

Collect like terms

2+4=4k-k

6=3k

Dibaide both sides by 3

3k/3 = 6/3

k = 2

Answer Link

Otras preguntas

An engineer in India (standard household voltage = 220 volts) is designing a transformer for use on her upcoming trip to Canada (standard household voltage = 12
What happens when two oceanic plates collide
If a rock is sitting in the dirt, the normal force from the ground and BLANK are acting on it plz help
What happens when two oceanic plates collide
help calculate 6x+14=32
the water pipe has a radius of 5 cm and a height of 7 cm. what volume of water does it take to fill the pipe?
What is MULTIPLIED to equal 80 but can be ADDED to make NEGATIVE 21
How much work does a mother do if she lifts each of her twin babies upward 1 meter? Each baby weighs 90 newtons.
How can I split five brownies between three people
How much work does a mother do if she lifts each of her twin babies upward 1 meter? Each baby weighs 90 newtons.