Use the following data to calculate the curve of the best-fit. y=0.4x2 + 1.2x + 3
y=0.4.x2 + 3.4x + 4
y=0.2x2 + 1.2x + 3
y=0.4x2 + 1.2.C + 4

The first five terms of a linear sequence are given below. 7 , 12 , 17, 22 , 27 , what is the next term of the sequence?

Enter the missing numbers in the boxes to complete the table of equivalent ratios of lengths to widths. ? 18 8 ? 10 30 12 ?

Astandard deck of cards contains 52 cards. one card is selected from the deck. (a) compute the probability of randomly selecting a seven or king. (b) compute the probability of randomly selecting a seven or king or jack. (c) compute the probability of randomly selecting a queen or spade.