The table below models the cost of using a high
efficiency washing machine and a standard washing
machine over x number of years
Which equation represents the cost of the high-
efficiency washing machine over a given number of
years
Which equation represents the cost of the standard
washing machine over a given number of years?
Number of
Years
High-
Efficiency
Cost ($)
Standard
Cost($)
After how many years of use would the washing
machines cost the same amount?
Which washing machine would be the more practical
purchase if kept for 9 years?
1
525
430
2
550
460
575
490

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.

Rewrite the following quadratic functions in intercept or factored form. show your work. f(t) = 20t^2 + 14t - 12

A(1,1) b(-3,0) c(-4,-1) d(3,-2) drag it to correct position