MATHEMATICS HIGH SCHOOL

PLEASE HELP!!!!!Which set is a function?


{(0,3), (3,0), (0,4), (4,0)}

{(0,2), (2,0), (4,6), (6,4)}

{(2,6), (3,6), (4,6), (2,0)}


{(6,2), (2,0), (4,6), (6,4)}

Answers

Answer 1
Answer: The second one is the function
Answer 2
Answer: A domain of a function doesn't have more than one range.

The first one is not a function because domain 0 has two different ranges, 3 and 4 ⇒ (0,3)(0,4)

The second one is a function

The third one is not a function because domain 2 has two different ranges, 6 and 0 ⇒ (2,6)(2,0)

The fourth one is not a function because domain 6 has two different ranges, 2 and 4 ⇒ (6,2)(6,4)

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What is the value of the expression 9×4−(2×12)? Enter your answer in the box.

Answers

Answer:

12

Step-by-step explanation:

9x4-(2x12)

= 36-24

= 12

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4+2(5*7) please help me do this, km in year 10!

Answers

4+2\cdot(5\cdot7)\n\nfirst:5\cdot7=35\n\n4+2\cdot35\n\nnext:2\cdot35=70\n\n4+70\n\nfinish:4+70=74
First do 5*7 = 35
This is what the equation looks like then 4+2(35)
Since the 2 is next to the ( ) that means you multiply. So 35*2 = 70
Then the last part is 70+4 = 74 !

What is 63X7/9 just the answer please

Answers

63 times 7 equals 441. 441 divided by 9 is 49. Therefore, your answer us 49. Have a nice day!

When x=3 and y=5 by how much does the value of 3x^2-2y exceed the value of 2x^2-3/

Answers

x = 3

y = 5

3x^2 – 2y

= 3(3)^2 - 2(5)

=> 3(9) - 10 = 17

And 2x^2– 3y

=> 2(3)^2 - 3(5)

=> 2(9) - 15 = 3

17 - 3 = 14

This gives 3x^2 – 2y exceeding 2x^2– 3y by 17 - 3 = 14
14 is the correct answer.

When you use x = 3 and

 y = 5 in the given expressions, 3x2 – 2y = 3(3)2– 2(5) = 27 – 10 = 17 and

2x2 – 3y = 2(3)2 – 3(5) = 18 – 15 = 3.

Then subtract 3 from 17....17-3 = 14.

14 is your answer.

Hope I helped ;]

On each of Maggie's bird-watching trips, she has seen at least 24 birds. If she has taken 4 0f these trips each year over the past 16 years, at least how many birds has maggie seen

Answers

24 birds per year for 4 years for the past 16 years would be 24 x 4 x 16 = 1,536

At least 1,536 birds
16 years is unneeded information. So 24 birds*4 trips= 96 birds over the past 16 years
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