Answer:
option-C
Step-by-step explanation:
we are given
Let P(A)=0.5
P(B)=0.9
P(A and B)=0.15
we know that
now, we can plug values
but we have
P(A)=0.5
we can see that both are not equal
so, A and B are not independent
so, option-C........Answer
The unit rate is: 
chapters per hour
Step-by-step explanation:
Given
chapters read = 
Time = 
Unit rate is calculated by dividing the total chapters by total time
So,
Hence,
The unit rate is: chapters per hour
Keywords: Unit rate, fractions
Learn more about fractions at:
#LearnwithBrainly
<span>The table shows the outputs, y, for different inputs, x:
Input (x) 1 3 5 7
Output (y) 8 6 5 4
Part A: Do the data in this table represent a function? Justify your answer. (3 points)
Yes, the data in the table represent a function. The reason is that given an input (value of x), in the domain of the function (which is 1, 3, 5, 7), you can state the correspondant output (value of y) without ambiguity.
Part B: Compare the data in the table with the relation f(x) = 4x + 8. Which relation has a greater value when x = 3? (2 points)
x = 3 => f(3) = 4(3) + 8 = 12 + 8 = 20
While the image of 3 in the data is y = 6.
So, the function f(x) = 4x + 8 has a greater value when x = 3.
Part C: Using the relation in Part B, what is the value of x if f(x) = 76? Be sure to show all your work.
f(x) = 76 = 4x + 8 => 4x = 76 - 8 = 68
=> x = 68/4 = 17
</span>
Answer:
Using the coordinates (0,-2) and (-1,1) we can form and equation which is y=-3x-2
