Answer:
Step-by-step explanation:
The y intercept is (0,5)
The slope is found from choosing 2 points on the line. My choice is (4,13) and (0,5)
x2 = 4
x1 = 0
y2 = 13
y1 = 5
slope = (y2 - y1)/(x2 - x1)
slope = (13 - 5)/(4 - 0) = 8/2 = 4
If I'm right answers A and D are both wrong. We don't know exactly what the 5 represents. I would say it is the beginning number of songs she knows when she starts graphing. In any event, B is not the answer.
That leaves C.
y = 2x + 5
x = 20
y = 2*20 + 5
y = 45
(20,45) is on the line
To solve you will have to multiply your answer by the number 2 the answer is 440
Answer:
The range of the random variable is {0, 1, 2}.
Step-by-step explanation:
The bag contains red and blue marbles.
The experiments consists of two draws, with reposition.
The random variable assigns the number of blue marbles to each outcome.
If we have only two draws, we can only get 0, 1 or 2 blue marbles.
The range of the random variable is {0, 1, 2}.
Answer:
-7
Step-by-step explanation:
Inverse variation is characterized by the equation: y = k/x, where k is a constant.
Here, we're given values of y and x, so let's use them to find k:
y = k/x
-7 = k/(-3)
k = (-7) * (-3) = 21
Our equation is now: y = 21/x
Finally, plug in -3 for x:
y = 21/(-3) = -7
The answer is -7.
Answer:2.30
Step-by-step explanation: