Question 7
the heart and the arrow are in the positions shown in the figure.
at the same time the heart and the arrow start moving.
the arrow moves three places clockwise and then stops and the heart moves four places anticlockwise and then
stops.
they repeat the same routine over and over again.
after how many routines will the heart and the arrow land in the same place as each other for the first time?
.
7
8
9
10
it will never happen

Let us imagine that the number of automobile accidents in a certain region are related to the regional number of registered automobiles in tens of thousands (b1), alcoholic beverage sales in $10,000 (b2), and decrease in the price of gasoline in cents (b3). furthermore, imagine that the regression formula has been calculated as: y = a + b1x1 + b2x2 + b3x3 where y = the number of automobile accidents, a = 7.5, b1 = 3.5, b2 = 4.5, and b3 = 2.5 calculate the expected number of automobile accidents for a football weekend if the region has 25,000 registered vehicles, $75,000 worth of beer is sold, and a gas war causes a 10 cent drop in a gallon of gas.