2. As shown in the table below, a person's target heart rate during exercise changes
as the person gets older.
Target Heart Rate
(beats per minute)
Age
(years)
20
25
30
35
135
132
129
125
122
40
45
119
50
115
Which values represents the linear correlation
coefficient, rounded to the nearest
thousandth, between a person's age, in years,
and that person's target heart rate, in beats per
minute?
a. -0.999
b. -0.664
c. 0.998
d. 1.503

anyone? find the second, fifth, and ninth terms of a sequence where the first term is 65 and the common difference is -7. 72, 93, 121 72, 79, 86 58, 37, 9 58, 51, 44

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

The point of intersection of the diagonals of a rectangle is 4 cm further away from the smaller side then from the larger side of the rectangle. the perimeter of the rectangle is equal to 56 cm. find the lengths of the sides of the rectangle. 16 points answer quick