A shop owner of a small shop orders 5 magazines from a press every week to sell in his shop. Let X be the number of magazines that the owner sells during a certain week. Suppose X has a pmf p(x) as follows:
1
0
X
4.
3
2
3
5
2
15
4.
2
15
1
15
p(x)
15
15
15
Calculate the probability that the owner sells at least 3 magazines in a certain week.
O A. 9
15
OB. 10
15
O c. 9
15
OD. 4
15
Question of​

Factor and solve to find roots x squared -x - 90 =0

Will mark the brainliest.paula makes stained-glass windows and sells them to boutique stores. if her costs total $12,000 per year plus $4 per window for the frame. how many windows must she produce to earn a profit of at least $48,000 in one year if she sells the windows for $28 each?

I've been working on this for a few days and i just don't understand, it's due in a few hours. you. the direction of a vector is defined as the angle of the vector in relation to a horizontal line. as a standard, this angle is measured counterclockwise from the positive x-axis. the direction or angle of v in the diagram is α. part a: how can you use trigonometric ratios to calculate the direction α of a general vector v = < x, y> similar to the diagram? part b suppose that vector v lies in quadrant ii, quadrant iii, or quadrant iv. how can you use trigonometric ratios to calculate the direction (i.e., angle) of the vector in each of these quadrants with respect to the positive x-axis? the angle between the vector and the positive x-axis will be greater than 90 degrees in each case. part c now try a numerical problem. what is the direction of the vector w = < -1, 6 > ?