Answer:
I believe the independent variable is c, or amount of cars washed.
Step-by-step explanation:
You cannot make a profit without washing any cars. P, representing the profit, can only be determined after the amount of cars washed is known.
<u><em>I hope this makes sense! Let me know if I can help with anything else.</em></u>
Answer:
x=75°and y=x= 75°
Step-by-step explanation:
Reason: opposite angles are equal and how I got 75 is by drawing an extension line and finding the other angle (i.e. angle on a straight line=180) so 180-105=75.
Substituting, we have
... f(x+4) = (x+4)² + 8(x+4) +7
... = x² +8x +16 +8x +32 +7
... = x² + 16x + 55
Subtracting the original, we have
... f(x+4) - f(x) = (x² +16x +55) -(x² +8x +7)
... f(x+4) - f(x) = 8x +48