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3 years ago

8

We expect to see a line for a graph of a composition of a function and it's inverse function, if the domain of each is all _____

_ numbers.
A.) Real
B.) Negative
C.) Positive
D.) Commutative

1 answer:

Helen [10]3 years ago

4 0

The answer would be All (A)Real Numbers

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Amanda needs to cut a board to use for a project. The board is 10 feet long. She first has to cut off 1 3/4 feet from one end of

masya89 [10]

Answer : 4x + 1 3/4 = 10

Step - by - step explanation : The reason 4 has an " x " at the end of it is because we don't know its exact number

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1 year ago

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Find the slope of the line. pleaseee

Akimi4 [234]

Answer:

0

Step-by-step explanation:

The slope is the change in y divided by the corresponding change in x:

∆y/∆x = (54.99 -54.99)/(7 -6) = 0/1 = 0

The slope of the line is zero.

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2 years ago

If we sample from a small finite population without replacement, the binomial distribution should not be used because the event

seropon [69]

Answer:

5/4324 = 0.001156337

Step-by-step explanation:

To better understand the hyper-geometric distribution consider the following example:

There are 100 senators in the US Congress, and suppose 60 of them are republicans so 100 - 60 = 40 are democrats).

We extract a random sample of 30 senators and we want to answer this question:

What is the probability that 10 senators in the sample are republicans (and of course, 30 - 10 = 20 democrats)?

The answer using the h-g distribution is:

$\large \frac{\binom{60}{10}\binom{100-60}{30-10}}{\binom{100}{30}}=\frac{\binom{60}{10}\binom{40}{20}}{\binom{100}{30}}$

Now, imagine there are 56 senators (56 lottery numbers), 6 are republicans (6 winning numbers and 50 losers), we extract a sample of 6 senators (the bettor selects 6 numbers). What is the probability that 4 senators are republicans? (What is the probability that 4 numbers are winners?).

<em>As we see, the situation is exactly the same,</em> but changing the numbers. So the answer would be

$\large \frac{\binom{6}{4}\binom{56-6}{6-4}}{\binom{56}{6}}=\frac{\binom{6}{4}\binom{50}{2}}{\binom{56}{6}}$

Now compute each combination separately:

$\large \binom{6}{4}=\frac{6!}{4!2!}=15\\\\\binom{50}{2}=\frac{50!}{2!48!}=1225\\\\\binom{50}{6}=\frac{50!}{6!44!}=15890700$

and now replace the values:

$\large \frac{\binom{6}{4}\binom{50}{2}}{\binom{56}{6}}=\frac{15*1225}{15890700}=\frac{18375}{15890700}=\frac{5}{4324}$

and that is it.

If the decimal expression is preferred then divide the fractions to get 0.001156337

6 0

2 years ago

This is 15 points plz help ( no links ) EXPLAIN YOUR ANSWER plz

goldfiish [28.3K]

A.
EXPLANATION:
The mode is the peak of the data, in this data set, 5/8
The median is the center of data, in the data set, 1/2
5/8>1/2
Mode>Median

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2 years ago

Which of the following is not a perfect square?<br> A. 50<br> B. 49<br> C. 121<br> D. 1

luda_lava [24]

50 is not a perfect square because it doesn’t have a square root.

Hope this helped :)

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3 years ago

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