Answer:
-x^2 +9x -2
Step-by-step explanation:
f(x) = – x^2 + 6x - 1 and g(x) = 3x
- 1,
(f + g)(x) = f(x) + g(x)
= – x^2 + 6x - 1 + 3x
- 1
Combine like terms
= -x^2 +9x -2
Answer:
76.4 m
Step-by-step explanation:
The race track has two straights and two semi circles.
Each straight is 80m
total perimeter for the straights is 80 * 2 = 160m
two semi circles which creates a full circle
perimeter of a full circle =
d
NB : (d) is the diameter
therefore we can find the value of the diameter
400 = 160 +
d
400- 160 =
d
240 =
d
d = 240/
d = 76.394.....
<u>d = 76.4 m</u>
Answer:
no clue i just forgot the answer but i just dd it
Step-by-step explanation:
Answer:
-6 = n
Step-by-step explanation:
-6=2n-n
Combine like terms
-6 = n