Make a scatter plot of the data below. x
y
25
150
50
178
75
216
100
265
125
323
150
392
175
470.4

Use the quadratic regression feature of a graphing calculator to find a quadratic model. Round to the nearest thousdandths place.
a.
y = 7.821 x squared minus 0.936 x minus 94.034
b.
y = negative 7.821 x squared + 0.936 x minus 94.034
c.
y = 0.008 x squared + 0.518 x + 131.886
d.
y = 0.008 x squared minus 0.518 x minus 131.886

Weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of $50. find the probability that a worker selected at random makes between $450 and $500

Determine the common ratio and find the next three terms of the geometric sequence. 649-14-02-00-00_files/i0100000, 649-14-02-00-00_files/i0100001, 2, a. 3; 649-14-02-00-00_files/i0100002, 649-14-02-00-00_files/i0100003, 649-14-02-00-00_files/i0100004. c. 649-14-02-00-00_files/i0100005; 649-14-02-00-00_files/i0100006, 649-14-02-00-00_files/i0100007, 649-14-02-00-00_files/i0100008. b. 3; 6, 18, 54 d. 649-14-02-00-00_files/i0100009. 6, 18, 54 select the best answer from the choices provided a b c d

What does independent variable and dependent variable mean in math?