75/4=25 pages per hour, so, now we have to divide 250 by 25.
250/25=10
So, it would take Joan 10 hours to read 250 pages. :)
Answer:
The positive value of 
will result in exactly one real root is approximately 0.028.
Step-by-step explanation:
Let 
, roots are those values of 
so that 
. That is:
(1)
Roots are determined analytically by the Quadratic Formula:
The smaller root is 
, and the larger root is 
.
has one real root when 
. Then, we solve the discriminant for :
The positive value of will result in exactly one real root is approximately 0.028.
Take a pic of whole page so I can see instructions
Y= 13 over 10x + 2 is the answer. The most important thing to remember when finding the slope of the line is RISE over RUN. When you rise, you go up or down. When you run, you go right or left. Think of RISE over RUN as a fraction.
You find two points on the line and you count up/down a certain amount of spaces, and right/left a certain amount of spaces to go from one point to the other point.
In this equation, we could use the point on the y-axis and the last point we see on the graph located at (10,15). You count up/down vertically first until you reach the horizontal line that the point is on. Then, you count the amount of spaces horizontally it takes you to reach the point. In this problem, you move up 13 spaces, and move to the right 10 spaces. This as a fraction will be 13 over 10, because we rose 13 spaces and we ran 10 spaces to get to our second point. The y-intercept will be the only number that is on the y-axis, which is 2.
