15. each ? below represents a factor between 1 and 9. draw lines to match

each fact on the left with a pattern for its products on the right.

? xo

o in the ones place

? x1

o or 5 in the ones place

? x 2

0,2,4,6, or 8 in the ones place

? x 5

the other factor in the ones place

? x9

1 less than the unknown factor in the tens place

Acable company wants to provide cell phone service for residents on an island. the function for the cost of laying the cable from the island to the mainland is c(x)= 6.500 square root x2+4, where x represents the length of the cable in feet. what are the domain and range of the function? a) domain: all real numbers range: all real numbers greater than or equal to 17,000 b) domain: all real numbers greater than or equal to 0 range: all real numbers greater than or equal to 17,000 c) domain: all real numbers greater than or equal to 0 range: all real numbers greater than or equal to 13,000 d) domain: all real numbers greater than or equal to 13,000 range: all real numbers greater than or equal to 0

You paint a 1/2 of a wall in 1/4 hour. how long will it take you to paint one wall

Astick 2 m long is placed vertically at point b. the top of the stick is in line with the top of a tree as seen from point a, which is 3 m from the stick and 30 m from the tree. how tall is the tree?