denise719 denise719
  • 14-06-2018
  • Mathematics
contestada

What is the value of f(x)= 9^x when x=-2?
A) 1/8
B) 81
C) 1/18
D) 18

Respuesta :

cathi32pac1ie cathi32pac1ie
  • 14-06-2018
Substitute -2 in for x and get (9)^-2
Flip the equation so that the exponent is positive and get 1/9^2
Work it out 1/(9*9) = 1/81

Answer Link

Otras preguntas

Slope question please help!
Which element has a complete valence electron shells
which types of files are saved with the .mp3 and .zip extensions?
In front of chris, tasha pours the same amount of water into both a short, fat glass and a tall, thin glass. she then asks chris which glass has more water. if
Is the equation y=2x^2 a linear function
Which is the term for numbers that appear in the chemical formulas of some compounds?
_____ is an electronic form of messaging between mobile, portable, or fixed devices over a telephone network.
at high elevations respiratory rate will
Clara writes the equation (x – 13)(x + 8) = 196 to solve for the missing side length of a rectangle represented by the factor x + 8. What is the missing side le
How long does it take for coffee to kick in?