From a group of ten boys and twelve girls, a committee of students is chosen at random. what is the probability that
a. all 4 members will be girls?

b. all 4 members will be boys?

c. there will be at lest one girl on the committee?

What is the absolute value of the complex number -4-sqrt2i

Rick is driving to his uncles house in greenville, which is 120 miles from ricks town .after covering x miles rick she's a sign stating that greensville is 20 miles away. which equation when solved will give the value of x. a: x+120 = 20 b: x x120 =20 c: x +20 equals 120 d: x x20= 120

The mean of 10 values is 19. if further 5 values areincluded the mean becomes 20. what is the meanthese five additional values? a) 10b) 15c) 11d) 22