Answer:
False
Step-by-step explanation:
To find the inverse of a function, switch the variables and solve for y.
The inverse of f(n)=-(n+1)^3:
Every time you subtract 3 to get the next number. 88-3=85, -3=82, ... So, how many times do you need to subtract 3 from 88 to get to -17? That question can be answered by solving the expression (88-(-17))/3. The answer is 35. So, 35 terms appear before -17
Infinity many solutions because they both equal the same when the problem is solved.
Answer:
Mean = 0
Variance = 4/3
Standard Deviation √4/3
a= 0.9
Step-by-step explanation:
If X has a uniform distribution over [a,b] then its Mean is a+b/2 and variance is (b-a)²/12
Here a= -2 and b= 2
Now finding the mean = a+b/2=-2+2/2= 0
Variance = (b-a)²/12=( 2-(-2))²/12= 4²/12= 16/12= 4/3
Standard Deviation = √Variance= √4/3
b) = \int\limits^a_a {\frac{1}{a- (-a)} } \, dx
=1/2a[x]^a_-a= 2a/2a= 1 (applying the limits to the function)
P(−a<X<a) ==1/2 * 2a= a (applying the limits to the function)
P(−a<X<a)= 0.9
a= 0.9
In the given question the limits are -a to a . When we apply these in the above instead of [a,b] we get the above answer.
Answer:
0+(-2)+9=7
Step-by-step explanation:
You start at 0 then go down by 2 or minus by , Then add by 9 then you end up at 7.