lame3245 lame3245
  • 02-03-2019
  • Mathematics
contestada

Please help!
f *( x ) = 2 sqrt ( x - 5 ) + 4

What's the value of f(21)

Respuesta :

hroscoe
hroscoe hroscoe
  • 02-03-2019

Answer: 4 (assuming the number 4 at the end of the equation IS NOT under the radical

Step-by-step explanation:

Plug 21 in for x:

2squareroot (21-5) + 4

2squareroot 16 + 4

2(4) + 4= 12

Answer Link

Otras preguntas

The accepted value for the percent by mass of water in a hydrate is 36.0%. In a laboratory activity, a student determined the percent by mass of water in the hy
Who invented hunting?
What are two Cabinet-level positions?
Which statement describes one acid-base theory? (1) An acid is an H+ acceptor, and a base is an H+ donor. (2) An acid is an H+ donor,. and a base is an H+ accep
There were 13 original states. Name three.
Given the balanced ionic equation: 3Pb2+ + 2Cr ==> 3Pb + 2Cr3+ What is the number of moles of electrons gained by 3.0 moles of lead ions? (1) 5.0 mol (3)
What is one thing Benjamin Franklin is famous for?
How/why do copy machines produce o zone?
What is the gram-formula mass of Fe(NO3)3? (1) 146 g/mol (3) 214 g/mol (2) 194 g/mol (4) 242 g/mol
Who is the Chief Justice of the United States now?