Answer:
f(x)=(x-9/2)²-25/4
Step-by-step explanation:
f(x)=x²-9x+14
f(x)=x²-9x+(-9/2)²-(-9/2)²+14
f(x)=(x-9/2)²-81/4+14
f(x)=(x-9/2)²+(-81+56)/4
f(x)=(x-9/2)²-25/4
No hablo expanol
7(z+2)-3z=44
7z+14-3z=44
7z-3z+14=44
4z+14=44
-14 -14
4z+14-14=44-14
4z+0=30
4z=30
1/4 1/4
(4z)/4=30/4
(4/4)z=15/2
1z=15/2
z=15/2
z=15/2
Well what you do is move the 2x over to the other side to make y=mx+b. It should look like this: -5y=-2x+11. Then you replace the x with 2,it should now look like this: -5y=-2(2)+11. Then you simplify and get this: -5y= 7. Then you divide -5 by both sides and get: y= 1.4 or 1 2/5. Hope that helped! If this is wrong to you double check the question you wrote.
Answer:
2.22m/s
Step-by-step explanation:
Distance = Velocity/Time
533.33m = V/4minutes
V = 533.33/240 seconds
V = 2.22m/s
