Is the function f(x) = 1/8 ^x an exponent function? If so , identify the base , if not why not ? 
Yes , the base is 1/e

yes, the base is e

No, there is no base that is a positive real number not equal to 1 raised to a variable exponent.

No, the base is the reciprocal of e, a number smaller than 1.

Acredit card advertises an annual interest rate of 23%. what is the equivalent monthly interest rate?

In each of the cases that follow, the magnitude of a vector is given along with the counterclockwise angle it makes with the +x axis. use trigonometry to find the x and y components of the vector. also, sketch each vector approximately to scale to see if your calculated answers seem reasonable. (a) 50.0 n at 60.0°, (b) 75 m/ s at 5π/ 6 rad, (c) 254 lb at 325°, (d) 69 km at 1.1π rad.

Titus works at a hotel. part of his job is to keep the complimentary pitcher of water at least half full and always with ice. when he starts his shift, the water level shows 4 gallons, or 128 cups of water. as the shift progresses, he records the level of the water every 10 minutes. after 2 hours, he uses a regression calculator to compute an equation for the decrease in water. his equation is w –0.414t + 129.549, where t is the number of minutes and w is the level of water. according to the equation, after about how many minutes would the water level be less than or equal to 64 cups?