Total number of students surveyed = 200
Number of male students = 80
Number of female students = 200 - 80 = 120
Number of brown eyed male students = 60
Probability of a brown eyed male student = 60 / 80 = 0.75.
Since, <span>eye color and gender are independent, this means that eye color is not affected by the gender. Thus, we expect a similar probability of brown eye for female as we had for male.
Let the number expected of brown eyed females be x, then x / 120 = 0.75.
Thus, x = 120(0.75) = 90.
Therefore, the number female students surveyed expected to be brown eyed is 90.</span>
Answer:
12.0 cm
Step-by-step explanation:
Use Pythagorean theorem 
a = 9
b = 8
hypotenuse = c = 
c = 12.04 cm
Answer:
C. m < A = 152.5 degrees.
Step-by-step explanation:
Use the Cosine Rule:
a^2 = b^2 + c^2 - 2.b.c.cos A
34^2 = 18^2 + 17^2 - 2.18.17 cos A
2.18.17 cos A = 18^2 + 17^2 - 34^2
cos A = (18^2 + 17^2 - 34^2) / (2.18.17)
cos A = -0.88725
m < A = 152.5 degrees.
Answer: If x is less than 0, 2 to the power of that negative x will be 1/2^x.
So, 1/2^x.
Step-by-step explanation:
I can't go any further without more info about value of x.
