Answer:
Step-by-step explanation:
Answer:
-250
Step-by-step explanation:
hope that makes sense
Answers:
where 'a' cannot be zero.
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Explanation:
The vertex is (h,k)
The x coordinate of the vertex is h which is found through this formula
For example, if we had the quadratic , then we'll plug in a = 3 and b = -6 to get:
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To find the value of k, we plug that h value into the original standard form of the quadratic and simplify.
It's interesting how we end up with the numerator of which is similar to found under the square root in the quadratic formula. There are other ways to express that formula above. We need to avoid dividing by zero. The values of b and c are allowed to be zero.
Darin got the correct answer
Answer: 0.1587
Step-by-step explanation:
Given : Adult male heights have a normal probability distribution with a mean of 70 inches and a standard deviation of 4 inches.
i.e.
Let x be the random variable that represents the heights of adult males.
Also,
For x= 74 , we have
Then, the probability that a randomly selected male is more than 74 inches tall:-
[using z-value table.]
Hence, the probability that a randomly selected male is more than 74 inches tall = 0.1587