Multiple-choice questions each have four possible answers left parenthesis a , b , c , d right (a, b, c, d), one of which is correct. assume that you guess the answers to three such questions.
a. use the multiplication rule to find p(wwc), where c denotes a correct answer and w denotes a wrong answer.
p(wwc)=

b. beginning with wwc, make a complete list of the different possible arrangements of one correct answer and two wrong answers, then find the probability for each entry in the list.
p(wwc)minus−see above
p(wcw)=
nothing
p(cww)=

c. based on the preceding results, what is the probability of getting exactly one correct answer when three guesses are made?

1760 kilometers

step-by-step explanation:

multiply the amount of time the plane took to travel by it's speed

(0,-3) see attached graph

step-by-step explanation:

a. to solve the system, graph the two equations.

x = y+3 becomes y=x-3 has m=1/1 and b=-3. start at (0,-3) on the y-axis and plot a point. then move up 1 unit and 1 unit to the right. plot a point and connect.

y=-4x+3 has m =-4/1 and b=-3. start at (0,-3) on the y-axis and plot a point. then move down four units and to the right 1 unit. plot a point and connect.

the solution is the point (x,y) where the two lines intersect. by the graph below it is (0,-3).

b. to solve by substitution, substitute y = -4x-3 into x= y+3

x= (-4x-3) +3

x=-4x

5x=0

x=0

now substitute x = 0 back in to find y.

y= -4(0)-3

y=0-3

y=-3

solution is (0,-3)

c. use elimination by adding the equations together.

x-y=3

4x+y=-3

5x=0

x=0

then substitute into one equation to find y.

y=-4(0)-3

y=-3