F(0) = 2x2 + 45 - 5 g(2) = 623 – 2x² +3
Find (f +9)(2)
A. (f +9)(2) = -6213 + 4x2 + 42 – 8
B. (f +g)(x) = 623 + 47 – 2
c. (f +9)(2) = 6203 – 202 + 4x – 2
D. (f +9)(x) = 8.23 + 2x – 2

Apsychology student wishes to investigate differences in political opinions between business majors and political science majors at her college. she randomly selects 100 students from the 260 business majors and 100 students from the 180 political science majors. does this sampling plan result in a simple random sample? why or why not? no, because each group of 200 students in the sample does not have the same chance of being selected. yes, because each group of 200 students in the sample has the same chance of being selected. no, because each individual student does not have an equal chance of being selected. yes, because each individual student has the same chance of being selected.

9.4.34  question   to estimate the height of a stone  figure, an observer holds a small square up to her eyes and walks backward from the figure. she stops when the bottom of the figure aligns with the bottom edge of the  square, and when the top of the figure aligns with the top edge of the square. her eye level is 1.811.81 m from the ground. she is 3.703.70 m from the figure. what is the height of the figure to the nearest hundredth of a  meter?

What is the period of the sinusoidal function ?