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2 years ago

Is the relation below a function? If it is a function, state its domain.

Mathematics

1 answer:

nasty-shy [4]2 years ago

4 0

Answer:

not a function. domain = -2, 3, 8 (you don't have to write them in any specific order and you also don't need to write -2 twice)

Step-by-step explanation:

to be a function, all of the x's must be different

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Which expression is equivalent to sin(2x) cosx

Vsevolod [243]

Answer:

$2sin(x)cos^2(x)$

Step-by-step explanation:

To solve the problem, you must expand the trigonometric expression using the information given.

$sin(2x)cosx\\sin(2x)\\=2sin(x)\\=2sin(x)cos^2(x)$

7 0

2 years ago

I don’t understand how to do 1 a.

nikitadnepr [17]

a. 6 x 5 = 30

b. 5.6 x 5 = 28

a. 20 devided by 5 = 5.6

b. 36 devided by 5 = 7.2 (i dont know, that sounds like a pretty tall person to me)

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3 years ago

Find the median and mean of the data set below: 30, 39, 24, 19, 18 Median Mean

Eva8 [605]

Answer: mean=26 , median=24

Step-by-step explanation:

Mean=Sum of all values/number of values

mean= 30+39+24+ 19+18/5

= 130/5

mean=26

Median

arrange data in order

18,19,24,20,39

In the case of ungrouped odd-numbered data, the number that divided data into 2 equal parts is called the median.

so median=24

4 0

2 years ago

Read 2 more answers

HELP PLEASE I really don’t understand it

valina [46]

Answer:

i think its b

Step-by-step explanation:

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2 years ago

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A study of telephones and the risk of brain cancer looked at a group of 469 people who have brain cancer. The investigators matc

Svetlanka [38]

This is an A. <span>observational study. They are observing the use of cell phones differs between people with or without cancer.

Happy studying ^-^</span>

8 0

3 years ago