A student in a mathematics class has a probability of 0.25 of gaining full marks in a test. She takes nine tests in a year Define the random variable X and write down how it is distributed. Find the probability that she will gain full marks exactly three times in a year gain full marks on more than half the test

gregory's graph is incorrect because it shows 2 inches of growth for each week when it should show 0.75 inches of growth each week.

i use my brain for prombles like this maybe you could try it

step-by-step explanation:

the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is

13.46

step-by-step explanation:

16.80 x .20 = 13.46