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Digiron [165]
2 years ago
12

Factor the expression. K^2+kf-2f^2

Mathematics
1 answer:
evablogger [386]2 years ago
4 0

Answer:

cant factor something that is not like terms its the same answer

Step-by-step explanation:

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True or False?The first distribution shown below has a smaller standard deviation than does the second distribution.1, 2, 3, 4,
Mandarinka [93]

Answer:

False, they have the same standard deviation

Step-by-step explanation:

Standard deviation is the distance each data value is from the mean.

While the mean of each data set will be different, the distance each data value is from this mean will be the same.  This is because each set goes sequentially from 1 to 12, or from 101 to 112.  The average distance from the mean will have to be the same.

To verify, using a graphing calculator, the standard deviation of the first set is 3.45.  The standard deviation of the second set is also 3.45.

6 0
3 years ago
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How many numbers can be squared to get a value of 9?
Katena32 [7]
3 can be squared twice to get the value of 9. 3x3=9
5 0
4 years ago
According to the CDC, the rate of Cesarean births in the United States in 2013 was about 33%. Suppose a random sample of 200 bir
sergij07 [2.7K]

Answer:

n = 200

p = 0.33.

Step-by-step explanation:

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

In this problem we have that:

33% of the births are Cesarean, so p = 0.33

Sample of 200 births, which eans that, n = 200

7 0
3 years ago
What is the slope of the line that passes through the points (10, 3) and (2, 3) ?
Margarita [4]
Slope: (y2-y1)/(x2-x1)
(3-3)/(2-10) = 0/-8 = 0
The slope is 0
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3 years ago
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Which statement about anaerobic exercises is true?
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Anaerobic exercise is mostly intended to improve cardiorespiratory endurance.The statement about anaerobic exeroses that is true is that <span>Anaerobic exercise is mostly intended to improve cardiorespiratory endurance.</span>
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3 years ago
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