Asurvey company asks all respondents for demographic information. thereare 8 age and 7 income groups, 5 gender choices, and 6 choices for ethnic-ity. how many people would this company have to poll so it’s inevitablethat at least three people in the sample have identical demographic infor-mation? give the number and explain.

The la dodgers hit the most homeruns in 2014. the number of homeruns accounted for 6% of the entire major leauge baseball homerun count. if 583 total homeruns were hit, approximately how many did the la dodgers hit

Find the value of the variable and the length of each secant segment.

The function a represents the cost of manufacturing product a, in hundreds of dollars, and the function b represents the cost of manufacturing product b, in hundreds of dollars. a(t) = 5t + 2 b(t) = 7t - 2t +4 find the expression that describes the total cost of manufacturing both products, a(t) + b(t). a. 7t^2 - 7t + 2 b. 7t^2 + 3 +6 c. 7t^2 + 7t - 6 d. 7t^2 - 3t + 6