Which function represents g(x), a reflection of f(x) = 1/2 (3)^x across the y-axis?
O g(x) = 2(3)^x
O g(x) = -1/2 (3)^x
O g(x) = 1/2(3)^x
O g(x) = 2(3)^-x

Aheated piece of metal cools according to the function c(x) = (.5)x ? 7, where x is measured in hours. a device is added that aids in cooling according to the function h(x) = ? x ? 2. what will be the temperature of the metal after two hours?

What is the order of these fractions from least to greatest 2/3 7/10 5/8 65/100

Which expression is equal to (21)(7)(3x) using the associative property? (21 · 7 · 3)x (7)(21)(3x) 32(7 + 3x) (3x)(7)(21)