G Customers at Fred’s Café win a $100 prize if the cash register receipt from their meal shows a star on each of five (5) consecutive weekdays of any week (i. e. Monday, Tuesday,…,Friday). The cash register is programmed to print stars on 10% of receipts, randomly selected. If Jamal eats at Fred’s once each weekday for four consecutive weeks and the appearance of the stars on the receipts is an independent process, then what is the standard deviation of X, where X is the number of dollars won by Jamal in the four-week period.

step-by-step explanation:

se a cavasery6

it's a proportional graph.

step-by-step explanation:

8 x 5 = 40         (and you have -8x and -5y)

x= absiss

y= orderly

so you have a proportional graph.

#12 the answer is the third option

a and c

for infinitely many solutions we require both left and right sides to be equal

distribute and simplify

a

14 - 8x = 20 - 8x - 6 = 14 - 8x ← both sides equal so infinite solutions

b

6x - 54 = 6x - 54 + x = 7x - 54 ← not equal

c

4x + 16 = 4x + 10 + 6 = 4x + 16 ← both sides equal so infinite solutions

d

5x - 40 + 10 = 5x + 10

5x - 30 = 5x + 10 ← not equal