Color-blindness is gender-based, with the majority of sufferers being males. roughly 8% of white males have some form of colorblindness, while the incidence among white females is only 1%. a random sample of 20 white males and 40 white females was chosen. let x be the number of males (out of the 20) who are color-blind. let y be the number of females (out of the 40) who are color-blind. let z be the total number of color-blind individuals in the sample (males and females together). which of the following is true about the random variables x, y, and z? x is binomial with n = 20 and p = .08. y is binomial with n = 40 and p = .01. z is not binomial. all of the above are true. only (a) and (b) are true.

3

step-by-step explanation:

divide 13.5 by 9 to get the scale factor. it equals 1.5

2 * 1.5 = 3

answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92

perimeter = 10 +  √10  units

explanation:

first, we will need to get the length of each line using the distance formula which is as follows:

distance = 

1- length of ab:

ab =   = 5 units

2- length of ac

length of ac is the same as ab = 5 units

3- length of bc:

bc =   =  √10  units

now, we can get the perimeter by adding the side lengths as follows:

perimeter = 5 + 5 +  √10

perimeter = 10 +  √10  units

hope this : )

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okay then that is your answer you know that 4 bottlkes of water cost ten $ at the music festival

step-by-step explanation: