State the end behavior: f(x) = x3 + 3 x4 + 2 x − 1 As x → −∞ , f(x) → answer A ;
As x → +∞ , f(x) → answer B
A.
answer A: − ∞ answer B: − ∞
B.
answer A: − ∞ answer B: + ∞
C.
answer A: + ∞ answer B: − ∞
D.
answer A: + ∞ answer B: + ∞

Adecibel is a logarithmic unit that can be used to measure the intensity of a sound. the function y = 10logx gives the intensity of a sound in decibels, where x is the ratio of the intensity of the sound to a reference intensity. the reference intensity is generally set at the threshold of hearing. use the graphing utility to graph the decibel function.a whisper has a sound intensity of 30 decibels. use your graph to you complete the following statement. the sound intensity of a whisper is times the reference intensity.

Aroulette wheel has 38 slots in which the ball can land. two of the slots are green, 18 are red, and 18 are black. the ball is equally likely to land in any slot. the roulette wheel is going to be spun twice, and the outcomes of the two spins are independent.the probability that it lands one time on red and another time on black in any order is(a) 0.5 (b) 0.25 (c) 0.4488 (d) 0.2244

An expression for the average of x 2x and 3y