Based on the density graph below, what is the probability of a value in the sample space being anywhere from 70 to 80? Hint: The distance between
consecutive horizontal gridlines is 0.004.
0.06
0.04
0.02
0.00
0
10
60
70
80
20 30 40 50
Sample space
O A. 4%
O B. 16%
O C. 36%
D. 64%

Solve the system by the elimination method. 2x + y - 4 = 0 2x - y - 4 = 0 when you eliminate y, what is the resulting equation? a.x = 0 b.4x = -8 c.4x = 8

The numbers on a football field indicate 10 yard increments. you walk around the perimeter of a football field between the pylons. you walk a distance of 30623 yards. find the area and perimeter of the indicated regions. write your answers as mixed numbers, if necessary. a. one end zone: perimeter: yd area: yd2 b. the playing field (not including end zones): perimeter: yd area: yd2 c. the playing field (including end zones): perimeter: yd area: yd2

One number is 4 less than 3 times a second number. if 3 more than two times the first number is decreased by 2 times the second number, the result is 11. use the substitution method. what is the first number?