Answer:
-3/20
Step-by-step explanation:
12 * x + 3 = -8x
Make sure to use PEMDAS.
12x + 3 = -8x
Add 8x to both sides of the equation.
20x + 3 = 0
Subtract 3 to get 20x alone.
20x = -3
Divide both sides by 20.
x =
A 12ft ladder leans against the side of a house. The bottom of the ladder is 5ft away from the side of the house. Find x
1 answer:
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The answer is 3.5 please click on the file for work.
Answer:
The variance of the total number of points she scores from these shots is 4.8951.
Step-by-step explanation:
For each 3-point shot that she takes, there are only two possible outcomes. Either she makes it, or she misses. This means that we can solve this problem using concepts of the binomial probability distribution.
Binomial probability distribution:
Probability of exactly x sucesses on n repeared trials, with p probability.
Has the variance given by:
In this problem, we have that:
She takes 7 shots, each one with a 37% probability of success. So . So:
This is the Variance of the number of shots that she makes. Each shot is worth three points. So the variance of the total number of points she scores from these shots is 3*1.6317 = 4.8951.