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

what is zeus's home town?
how can we tell when forces are acting on an object (science)
Binary fission is the most common form of reproduction in _____.
Which number is between 0.5 and 8/9 A.25/36 B.1/3 C.22/24 D.7/24
Line segment DCOE is a diameter of circle O, line segment AB is a chord of the circle, and line segment OD is perpendicular to line segment AB at C. If AB=8 an
true or false, Mendel discovered predictable patterns in the inheritance of traits ?
how can you estimate 642 fl oz in cups
sum of 8 and a number is 5 less than 70
PLEASE HELP!!!! :) Farmers in the northern Indo-Gangetic plain of south Asia rely mostly on: A. Water carried by rivers that drain from the Himalayas B. Cool ai
Which value of x makes the expression undefined 2x-32-x