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EleoNora [17]
3 years ago
11

F K = {(x, y) | x - y = 5}, is Set K a function?

Mathematics
1 answer:
muminat3 years ago
3 0

Answer:

Yes, because the linear function  x - y = 5 is a function

Step-by-step explanation:

x - y = 5  can look like   y = x - 5  with slope 1 and y-intercept -5

so this is a function  which makes set K a function.

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A parallelogram has an area of 111.86 ft2 and a height of 11.9 ft. how long is the base of the parallelogram? enter your answer
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tess has 100 dimes and quarters , if the total of the coins is $21.40 how many of each of the coins does she have ?? Using subst
Zanzabum

Answer: 24 and 76

Step-by-step explanation:

{

d

+

q

=

100

10

d

+

25

q

=

2140

From the first equation, we have  

d

=

100

−

q

Substituting that into the second equation, we have

10

(

100

−

q

)

+

25

q

=

2140

⇒

1000

−

10

q

+

25

q

=

2140

⇒

15

q

=

1140

⇒

q

=

1140

15

=

76

Knowing that  

q

=

76

we can substitute that value into the first equation to obtain

d

+

76

=

100

∴

d

=

24

Thus, Sue has  

24

dimes and  

76

quarters.

4 0
3 years ago
Help me pleaseeee. due todayyy
zalisa [80]

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1.5

Step-by-step explanation:

The scale factor can be found by dividing the side length from triangle ABC by the corresponding side length from triangle ABC

so the scale factor would be equal to

12/8 and 9/6

9/6 = 1.5

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6 0
3 years ago
When was the midpoint formula discovered?
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(\frac{x1+x2}{2}, \frac{y1+y2}{2})

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