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Musya8 [376]
3 years ago
6

Which of the following sets represents a function? {(1, 2), (3, 2), (5, 7)} {(3, 5), (-1, 7), (3, 9)} {(1, 2), (1, 4), (1, 6)}

Mathematics
2 answers:
zlopas [31]3 years ago
4 0

Answer:

{(1, 2), (3, 2), (5, 7)}

Step-by-step explanation:

A function has a one to one correspondence

Each x can go to only 1 y value

{(1, 2), (3, 2), (5, 7)} function

{(3, 5), (-1, 7), (3, 9)} 3 goes to more than 1 y value

{(1, 2), (1, 4), (1, 6)} 1 goes to more than 1 y value

slavikrds [6]3 years ago
3 0

Answer:

\huge \boxed{ \{(1, 2), (3, 2), (5, 7)\} }

Step-by-step explanation:

\sf A \ function \ is \ a \ relation \ if \ each \ x \ value \ is \ for \ each \ y \ value.

\{(1, 2), (3, 2), (5, 7)\} \ \sf represents \ a \ function.

\{(3, 5), (-1, 7), (3, 9)\} \ \sf does \ not \ represent \ a \ function.

\{(1, 2), (1, 4), (1, 6)\} \ \sf does \ not \ represent \ a \ function.

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Find the area of the shaded region
AlexFokin [52]

Answer:

7\pi cm²

Step-by-step explanation:

First, find the area of the big circle with the formula A = \pir²

A = \pi(3)²

A = 9\pi

Now, we can find the areas of the smaller circles. Since they have the same radius, they are congruent (will have the same area)

A = \pir²

A = \pi(1)²

A = \pi

Now, we will subtract the areas of the smaller circles from the area of the big circle to find the area of the shaded region:

9\pi - \pi - \pi = 7\pi

So, the area of the shaded region is 7\pi cm²

5 0
3 years ago
Which is the equation of a circle with center (-2, 3) and radius r = 5?
Arisa [49]

Answer:

(x+2) ^2 + (y-3)^2 = 25  

Step-by-step explanation:

The equation of a circle is given by

(x-h) ^2 + (y-k)^2 = r^2  where (h,k) is the center and r is the radius

(x--2) ^2 + (y-3)^2 = 5^2

(x+2) ^2 + (y-3)^2 = 25  

5 0
3 years ago
32: ____ = 12:24. I know the equivalent Ratio is "64", but how do you get the answer?
xeze [42]
  I think you multiply 32 x 64
4 0
3 years ago
Read 2 more answers
PLEASE ANSWER
solong [7]

Answer:

B and D

Step-by-step explanation:

For a linear equation, the degree is 1.

For y=x² , the degree is 2, so it is not linear.

For y=2x, the degree is 1, so it is linear.

For y=4/x----->xy=4, the degree is 2, so it is not linear.

For y=x/4, we have 4y=x, the degree is still 1, this is also linear.

The correct options are B and D.

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Arturiano [62]
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3 years ago
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