Answer:
The number is -7
Step-by-step explanation:
Solve in backward to find answer.
The outcome is -4.
It was multiplied by 4. So, divide the -4 by 4.
-4 ÷ 4 = -1
Then, it was divided by 5. So, multiply -1 by 5.
-1 × 5 = -5
Finally, it was added by 2. So, subtract -5 by 2.
-5 - 2 = -7
The answer you should put is 9!
Your answer is B. 0.9272. Hope I was able to help!
Answer:
11
Step-by-step explanation:
x*2 + 5
Subtitute
3*2 + 5
6 + 5
11
We have to find the values of F.
In this case. F is unlikely to be a polynomial.
But the problem is, we can’t calculate the values of F directly.
There is no real value of x for which x = x−1 x because F isn’t defined at 0 or 1. so,
substituting x = 2.
F(2) + F(1/2) = 3.
Substitute, x = 1/2
F(1/2) + F(−1) = −1/2.
We still are not getting the required value,
therefore,
Substitute x = −1
As, F(2) +F(−1) = 0.
now we have three equations in three unknowns, which we can solve.
It turns out that:
F(2) = 3/4
F(3) = 17/12
F(4) = 47/24
and
F(5) = 99/40
Setting
g(x) = 1 − 1/x
and using
2 → 1/2
to denote
g(2) = 1/2
we see that :
x → 1 - 1/x → 1/(1-x) →xso that:
g(g(g(x))) = x.
Therefore, whatever x 6= 0, 1 we start with, we will always get three equations in the three “unknowns” F(x), F(g(x)) and F(g(g(x))).
Now solve these equations to get a formula for F(x)
As,
h(x) = (1+x)/(1−x)which satisfies
h(h(h(h(x)))) = xNow, mapping x to h(x) corresponds to rotating the circle by ninety degrees.