Assume that random guesses are made for nine multiple choice questions on an SAT test, that there are n=9 trials, each with by p = 0.4 . number of correct answers

x = -2

y = 848

step-by-step explanation:

plug in the numbers

step-by-step explanation: yes

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,

ummm seems that u didnt post the attachement !