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xenn [34]
3 years ago
14

Can someone explain this and help me?

Mathematics
1 answer:
ExtremeBDS [4]3 years ago
6 0

Answer:  (2,<u>-5</u>)

Step-by-step explanation:

The slope of the line formed by this set of number is 2 (y increases by 2 for every 1 increase in x).  The line has the form y = 2x + b.  Enter one of the data points to find b.

y = 2x + b  for (2,3)

3 = 2*2 + b

b = -1

The equation is y = 2x - 1

The missing value:  y =2*(-2) - 1

                                 y = -5

(2,-5)

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guapka [62]

Answer:

This system has one answer.

Step-by-step explanation:

This system only has one answer which are: x=1  y=2

Hope this helped! :)

8 0
3 years ago
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According to the document Current Population Survey, published by the U.S. Census Bureau, 30.4% of U.S. adults 25 years old or o
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Answer:

0.0803 = 8.03% probability that the number who have a high school degree as their highest educational level is exactly 32.

Step-by-step explanation:

For each adult, there are only two possible outcomes. Either they have a high school degree as their highest educational level, or they do not. The probability of an adult having it is independent of any other adult. This means that the binomial probability distribution is used to solve this question.

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.

30.4% of U.S. adults 25 years old or older have a high school degree as their highest educational level.

This means that p = 0.304

100 such adults

This means that n = 100

Determine the probability that the number who have a high school degree as their highest educational level is a. Exactly 32

This is P(X = 32).

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

P(X = 32) = C_{100,32}.(0.304)^{32}.(0.696)^{68} = 0.0803

0.0803 = 8.03% probability that the number who have a high school degree as their highest educational level is exactly 32.

7 0
2 years ago
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7 0
3 years ago
Prove the identity.<br> cosh(−x) = cosh(x)
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The base of the right prism is a rhombus with the side 7 cm. The altitude of the prism is h=13 cm. Find the lateral area of the
Art [367]

Answer:The lateral area is 364\ cm^{2}

Step-by-step explanation:

we know that

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6 0
3 years ago
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