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Marta_Voda [28]
3 years ago
8

Which of the following relations is a function?

Mathematics
2 answers:
Nutka1998 [239]3 years ago
7 0
B.) is a function good luck on your quiz
leonid [27]3 years ago
5 0

Answer: A. Not a function. B. Is a function. C. Not a function. D. Not a function.

Step-by-step explanation:

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Although bats are not known for their eyesight, they are able to locate prey (mainly insects) by emitting high-pitched sounds an
Sergeu [11.5K]

Answer:

Mean = 48.6364

s^2 = 331.8545 -- Sample Variance

s = 18.2169 --- Sample Standard Deviation

Step-by-step explanation:

Given

n = 11

Data: 24, 41 ,25 ,68 ,53 ,83 ,43 ,63 ,56 ,34 ,45

Solving (a): The sample mean

Mean = \frac{\sum x}{n}

So:

Mean = \frac{24 +41 +25 +68 +53 +83 +43 +63 +56 +34+ 45}{11}

Mean = \frac{535}{11}

Mean = 48.6364

Solving (b): Sample variance (s^2)

This is calculated as:

s^2 = \frac{\sum (x - \bar x_i)^2}{n - 1}

Where:

\bar x = 48.6364

So:

s^2 = \frac{(24 -48.6364)^2 +(41  -48.6364)^2 +......................+( 45 -48.6364)^2}{11-1}

s^2 = \frac{3318.54545456}{10}

s^2 = 331.8545

Solving (c): Sample Standard Deviation (s)

This is calculated as:

s = \sqrt {s^2

s = \sqrt{331.8545

s = 18.2169

8 0
3 years ago
suppose the annual rate of inflation is about 4% this means that the cost of an item increases by about 4%. write and evaluate a
Mashcka [7]
Cost = (3,500) * (1.04)^years
Cost = (3,500) * (1.04)^4
<span><span><span>Cost = (3,500) * 1.16985856 </span> </span> </span>
<span><span>Cost = </span>4,094.50</span>



4 0
3 years ago
James wanted to know if Earth and Mars added together were as big as Jupiter.
rewona [7]

Answer:

Mars is 6.79 X 10^6 m

Step-by-step explanation:

Mars is at a distance of 206,600,000 km from the Sun at perihelion At aphelion, Earth is at a distance of 152,100,000 km from the Sun. This is a difference of 54,500,000 km, or 34,000,000 miles.  

4 0
3 years ago
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Contact [7]
Table C represents a function

This is because each x value has only one y value. For the other tables, the x values of 4, 9, and 8 have 2 different y values.
3 0
3 years ago
Matthew is 7 years older then twice the age of his sister, if matthew is 13, how old is his sister
Irina18 [472]
This is subtraction an the answer would be 6

5 0
4 years ago
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