Answer:
Step-by-step explanation:
To find out if a point (x, y) is on the graph of a line, we plug in the values and see if we get a true statement, such as 10 = 10.
Answer:
(±√3,±√+1)
Step-by-step explanation:
Answer:
Step-by-step explanation:
First, we write the rental cost with each company:
Company A ![Pa = 100 + 0.2*m](https://tex.z-dn.net/?f=Pa%20%3D%20100%20%2B%200.2%2Am)
Company B ![Pb = 60 + 0.7*m](https://tex.z-dn.net/?f=Pb%20%3D%2060%20%2B%200.7%2Am)
Where m: miles travelled
Now, we need to find "number of miles in a day at which the rental costs for Company A and Company B are the same". This means Pa = Pb. Then:
![100 + 0.2*m = 60 + 0.7*m](https://tex.z-dn.net/?f=100%20%2B%200.2%2Am%20%3D%2060%20%2B%200.7%2Am)
Solving the equation for m by taking 0.2m and 60 on both sides:
![100 + 0.2*m - 0.2*m - 60 = 60 + 0.7*m - 0.2*m - 60](https://tex.z-dn.net/?f=100%20%2B%200.2%2Am%20-%200.2%2Am%20-%2060%20%3D%2060%20%2B%200.7%2Am%20-%200.2%2Am%20-%2060)
![40 = 0.5*m](https://tex.z-dn.net/?f=%2040%20%3D%200.5%2Am)
Finally, dividing 0.5 on both sides:
![m = 80](https://tex.z-dn.net/?f=%20m%20%3D%2080)
#8) Subtract 350 from each side then divide each side by 25 to get (c-350)/25 = h.
Plug in 950 for c to get (950-350)/25 = h.
600/25 = h = 24 hours.
#9 is the same as number 8 just with one more variable. Subtract 2.25h from both sides and divide both sides by 1.75. Then plug in 18.25 for t and 5 for h. Then solve for d.
Answer:
(2a+5)(2a-5)
Step-by-step explanation: