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2 years ago

Is {(1,2),(2,4),(-1,2),(0,3)} a function?

Mathematics

1 answer:

daser333 [38]2 years ago

5 0

Answer:

No it is not a function

Step-by-step explanation:

Since x=0 produces y=4 and y=0, the relation (2,3),(0,4),(−1,2),(3,−4),(0,0),(-3,−2),(−2,0) is not a function.

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One of the radioactive isotopes used in chemical and medical research is iodine-125, which has a half-life of 61 days. how long

Oksana_A [137]

Answer:122 days

Step-by-step explanation:

5 0

2 years ago

Eduardo has a recipe that uses 2/3 cup of flour for each batch. If he makes 4 batches, how many cups of flour will he need? How

34kurt

Answer:

4 batches: $2\frac{2}{3}$ cups

7 batches: $4\frac{2}{3}$ cups

Step-by-step explanation:

If he uses 2/3 cup of flour for <u>each</u> batch, then that is 2/3 four times, or 2/3 · 4.

$\frac{2}{3}$ × $\frac{4}{1}$

= $\frac{8}{3}$ = $2\frac{2}{3}$

If he makes three more, than that will be 7 batches in total. We can multiply 2/3 by 3 to find out how much will be needed for those extra three, then add that product to $2\frac{2}{3}$ .

$\frac{2}{3}$ × $\frac{3}{1}$

= $\frac{6}{3}$ = 2

$2\frac{2}{3} +2$ = $4\frac{2}{3}$

Thus, $2\frac{2}{3}$ and $4\frac{2}{3}$ are the answers.

hope this helps!

8 0

2 years ago

Can someone with knowledge see what I did wrong on number 4<br>also see if number 3 is right

Yakvenalex [24]

Answer:

#4. m=0;

#3. m = $\frac{-1}{2}$

Step-by-step explanation:

It seems right.

#4.

Maybe your teacher wants you to write m=0; because when a fraction has a numerator equal to zero then the fraction is zero.

#3.

Maybe your teachers want you to simplify the fraction and write m = $\frac{-1}{2}$

7 0

3 years ago

Read 2 more answers

You are asked to select a password for a Web site. It must consist of fivelowercase letters and two digits in any order.Howmany

Alika [10]

5 lowercase, so
26 letters
any order, so I gues you can repeat
and 2 digits, 10 digits
so
26^5 times 10^2 or
1188137600 possible passwords

7 0

3 years ago

I don’t understand this at all

xz_007 [3.2K]

Answer:

x=8

Step-by-step explanation:

You would set them equal to each other to get 9x-13=6x+11.

You would them move 6x over so -6x on both sides. This would then get you 3x-13=11.

Then move the -13 over so add 13 to both sides to get 3x=24

Then get x by itself so divide by 3 to get x=24/3.

Then that simplified is 8

8 0

3 years ago