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3 years ago

Is {(1,-2),(-2,0),(-1,2),(1,3)} a function

Mathematics

1 answer:

svp [43]3 years ago

5 0

Answer:

Step-by-step explanation:

No...this is not a function.

A function will not have ANY repeating x values.....they can have repeating y values, just not the x ones.

And this set of numbers has repeating x values of 1

in other words, in a function, all the x values have to be different numbers....none can be the same

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20. in an apple orcherd in 2015,

Margarita [4]

Answer:

<u>5-number summary is:</u>

Minimum = 750
Maximum = minimum + range = 750 + 2350 = 3100
Median = 2250
Q1 = 1500
Q3 = Q1 + IQR = 1500 + 1150 = 2650

The numbers are added to the box plot.

See attached

7 0

3 years ago

What’s is your average speed in miles per hour and in feet per second if you travel a mile in 26 minutes?

Leni [432]

Since your average mile is per hour and feet is per second you should get 1.4666667 Feet per Second.

I hope I helped!!!!!

3 0

3 years ago

Read 2 more answers

What is 3/18 and 12/20 simplified

grin007 [14]

3/18= 1/6

12/20= 3/5

5 0

4 years ago

Read 2 more answers

Your third-grade classroom has 32 boys and girls. Two-thirds of the boys and three-fourths of the girls are going on a field tri

adelina 88 [10]

Answer: The ratio of boys to girls would be 3 : 5 .

Step-by-step explanation:

Since we have given that

Number of boys and girls = 32

Fraction of boys are going on a field trip = $\dfrac{2}{3}$

Fraction of girls are going on a field trip = $\dfrac{3}{4}$

Number of children left = 9

Let the number of boys be 'b'.

Let the number of girls be 'g'.

According to question, it becomes ,

$b+g=32------------(1)\\\\32-9=\dfrac{2}{3}b+\dfrac{3}{4}g\\\\23=\dfrac{2b}{3}+\dfrac{3g}{4}-------------(2)$

From eq(1), we get that g = 32-b

So, it becomes,

$\dfrac{2}{3}b+\dfrac{3}{4}(32-b)=23\\\\\dfrac{2}{3}b+24-\dfrac{3}{4}b=23\\\\\dfrac{2}{3}b-\dfrac{3}{4}b=23-24=-1\\\\\dfrac{8b-9b}{12}=-1\\\\\dfrac{-b}{12}=-1\\\\b=-1\times -12\\\\b=12$

so, number of girls would be 32 - b = 32 - 12 = 20

So, Ratio of boys to girls in class would be 12 : 20 = 3 : 5.

Therefore, the ratio of boys to girls would be 3 : 5 .

7 0

4 years ago

I do not remember how to do this please help!

Temka [501]

I think it is self explanatory. Good luck! And remember you can always use long division if you don’t prefer synthetic division. Just rewrite the coefficients in the proper equation. :)

4 0

4 years ago