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tigry1 [53]
2 years ago
7

Does (1,-2) (2,1) (3,0) (4,2) represent a function Yes or No?

Mathematics
2 answers:
weeeeeb [17]2 years ago
6 0

Answer:

yes it represents a function.

Artemon [7]2 years ago
3 0

Answer:

no

Step-by-step explanation:

x= 1, 2, 3, 4

y= -2, 1, 0, 2

y is changing randomly you won't be able to tell what number is next

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Prove that sin20sin40sin60sin80=3/16
never [62]
We'll use the following properties of sine and cosine to prove this:

sin(a)\cdot sin(b) = \frac12(cos(a-b) - cos(a+b))

cos(a)\cdot cos(b) = \frac12(cos(a+b) + cos(a-b))

cos(180+a) = cos(180-a)

Then it's just a matter of filling it in...

sin20sin40 * sin60sin80 = 1/2(cos20 - cos60) * 1/2 (cos20 - cos140) =

1/8( cos40 + 1 - cos160 - cos120 - cos40 - cos80 + cos80 + cos200) =

1/8(1 -  cos160 - cos120 + cos200) =

1/8(1 -  cos160 - cos120 + cos160) =

1/8(1 - cos120 ) = 1/8( 1 + 1/2 ) = 3/16

5 0
3 years ago
Please Help! Look at Screenshot for question.
iogann1982 [59]

Answer:

C

Step-by-step explanation:

A modified box plot does not include the outliers in the whiskers, instead they are points outside of the whiskers

5,25,33,34,34,37,37,40,42,45,45,46,46,49,73

This data has 2 outliers 5 and 73 so we have 2 choices for a modified box plot D or D

The lowest value outside of the outliers is 25 , so C would be the logical choice

D has the lower end of the whisker too close to the outlier

3 0
3 years ago
A frame is 3 in wide and 9 in tall. if it is reduced to a height of 3 in, then how wide will it be?
Nimfa-mama [501]

It would be 1 inch wide.

8 0
3 years ago
Read 2 more answers
Improper fraction help
ser-zykov [4K]


1  \frac{1}{2}
8 0
3 years ago
If f (x) = 2x2 +5/(x-2), complete the following statement:<br> f(6) =
Tems11 [23]

Answer:

6.25

Step-by-step explanation:

Putting 6 in place of x we get the answer

4x + 5 \div (x - 2) \\ 24 + 5 \div 4 \\ 27 \div 4 = 6.25

<em>Hope</em><em> </em><em>it</em><em> </em><em>Helps</em><em> you</em><em>.</em><em>.</em><em>.</em><em>☺</em>

7 0
3 years ago
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