Answer:
A: 3x^2/x^2 - 6x-7
numerator: 3x * x = 3x^2
denominator: (x+1) (x-7) = x^2 - 7x + x -6 = x^2 - 6x - 7
<h3>
Answer: D) 4.25</h3>
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Work Shown:
x - 3.4 > 17/68
x - 3.4 > 0.25
x - 3.4 + 3.4 > 0.25 + 3.4 .... add 3.4 to both sides
x > 3.65
Any number larger than 3.65 will work in place of x
Choice A does not work since 3.4 is not larger than 3.65
Choice B and choice C is the same story as well since 21/68 = 0.3088 approximately
Only choice D is larger than 3.65
Answer:
The area of the circle is
Step-by-step explanation:
we know that
The area of a circle subtends a central angle of radians
so
By proportion find the area of the circle
Using the hypergeometric distribution, there is a 0.4894 = 48.94% probability of selecting none of the correct six integers in a lottery.
<h3>What is the hypergeometric distribution formula?</h3>
The formula is:
The parameters are:
- x is the number of successes.
- N is the size of the population.
- n is the size of the sample.
- k is the total number of desired outcomes.
For this problem, we want to take 6 numbers from a set of 56, hence the values of the parameters are:
N = 56, k = 6, n = 6.
The probability of selecting none of the correct six integers in a lottery is of P(X = 0), hence:
0.4894 = 48.94% probability of selecting none of the correct six integers in a lottery.
More can be learned about the hypergeometric distribution at brainly.com/question/24826394
#SPJ4
Answer:
y=11.5x
he rides 11.5 miles every hour