Answer:
True.
Step-by-step explanation:
For example let f(x) = 3x + 1 then f-1(x) is found as follows
Let f(x) = y = 3x + 1 then
3x = y - 1
x = (y-1) / 3
x = f-1(x) = (x - 1)/3.
So:
Replacing the x in y by (x - 1)/3 :-
x = f(-1)(y) = ( (3x + 1) - 1) / 3
= 3x / 3
= x.
So y = f(x).
Answer:
Step 1 : Plug values into the quadratic formula
x = -(-5) +/- √ (-5)^2 - (4)(2)(-3) / (2)(2)
Step 2 : Solve
x = 5 +/- √ 25 + 24 / 4
x = 5 +/- √ 49 / 4
x = 5 +/- 7 / 4
x1 = 5 - 7 / 4 AND x2 = 5 + 7 /4
x1 = -1/2 OR - 0.5
x2 = 3
Hope this helps!!
Answer:
the thired grap.
Step-by-step explanation:
it is for the test i toke
Answer:
The first time they will both have completed full rotations is 3×5=15 Thus 15×1.8=27 rotations & 15×1 and 1/3=20 rotations.
Step-by-step explanation:
33 1/3 gear takes 1.8 sec to make one revolution and the 45 gear takes 1 and 333 seconds per revolution.
Answer:
22
Step-by-step explanation:
first side plus second side has to be less then the third side
15 + 6 = 21
third side can be greater or equal to 22