Answer:
(x^2 +6)/2
or 1/2 x^2 +3
Step-by-step explanation:
f(x)= sqrt(2x-6)
y =sqrt(2x-6)
To find the inverse function, we interchange the x and y and solve for y
x = sqrt(2y-6)
Square each side
x^2 = sqrt(2y-6)^2
x^2 = 2y-6
Add 6 to each to each side
x^2 +6 = 2y-6+6
x^2 +6 = 2y
Divide each side by 2
(x^2 +6)/2 = 2y/2
(x^2 +6)/2 = y
The inverse function is
(x^2 +6)/2
or 1/2 x^2 +3
Answer:
1/9
Step-by-step explanation:
Of the 36 possible sums, 4 of them are 9. The probability is 4/36 = 1/9.
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Comment on these dice
Interestingly, the probability of any given sum is the same as it is with "normal" dice.
Answer: 1.(-3.4)(5)=-17
2.(-8)(2.2)=17.6
3. (3.8)(-5)=-19
4.(-9.5)(-2)
Step-by-step explanation:
100-20x
100 is the amount of money you have
20 is your budget
x is number of weeks
