For this case we must factor the following expression:
We take the sign "-" as a common factor of the expression, taking into account that:
To factor, we must find two numbers that, when multiplied, result in -48 and when added, result in -2. These numbers are -8 and +6.
Then, we factor the expression within the parenthesis as:
Answer:
When an event is independent of the other, it means Event A does not influence Event B.
For example, if one was to find the probability of someone owning a car and what there neighbour eats, there is no correlation. In this situation, the events are independent.
Hope I helped :)
What I like to do with negative numbers is count back from the positive to the negative here I can make a number line! :) think of it this way 0 is the middle of your positive and negative numbers it’s where they are coming together!
-5 -4 -3 -2 -1 0 1 2 3 4 5
————————————
Here #5 (on your paper)
8-11 so count back from 8 eleven times
8-11= -3
If u need anymore help I’m here :)
Ik negative & positive numbers are pretty tricky lol
Best of luck :))
The correct answer is f^-1(x)=1/2x+2.
1. Substitute y for f(x). ( y=2x+4 )
2. Interchange the variables x and y. ( x=2y-4 )
3. Swap the sides. ( 2y-4=x )
4. Move the constant to the right. ( 2y=x+4 )
5. Divide both sides by 2. ( y=1/2x+2 )
6. Use substitution to substitute f^-1(x) for y.
Thus the inverse is f^-1(x)=1/2x+2
Answer:
The ages of people entering a pie eating contest are normally distributed with a mean of 35 years and a standard deviation of 8.2 years.
What is the age of a pie eating contestant with a z-score of −2.1 ?
[ Age - 35 ] / [ 8.2] = -2.1 multiply both sides by 8.2
Age - 35 = -17.22 add 35 to both sides
Age ≈ 17.8 years
I am doing the test right now !!! ;P
