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3 years ago

What set of order pairs is a function?

1 answer:

7 0

A function is a set of ordered pairs in which no two different ordered pairs have the same x -coordinate.

Btw you need to add an image so we can see which the order pairs

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a group of 4 pupils can take 2 weeks to do a certain job.how long will 12 pupils take to complete the job if they work at the sa

Ksivusya [100]

Answer:

6 weeks

Step-by-step explanation:

Set up a proportion where x is the amount of time with 12 pupils:

$\frac{4}{2}$ = $\frac{12}{x}$

Cross multiply and solve for x:

4x = 24

x = 6

So, it will take 12 pupils 6 weeks to complete the job.

7 0

3 years ago

Craig writes 3x + 5y - x - 4y = 3 +9y. Can you spot the 2 mistakes he has made?

fenix001 [56]

Answer:

first 5y-4y does not equal 9y.

second 3x-x is 2x but he put 3.

Step-by-step explanation:

Math - Answered Sun.Sept.19.2021

If It Helped Please Rate And Heart.

6 0

3 years ago

Read 2 more answers

(5x+2y=23<br> (13x+3y=51

AysviL [449]

Answer:

$[3, 4]$

Step-by-step explanation:

{5x + 2y = 23

{13x + 3y = 51

−5⁄13[13x + 3y = 51]

{5x + 2y = 23

{−5x - 1 2⁄13y = 19 8⁄13 >> New Equation

______________________

11⁄13y = 3 5⁄13

_____ ______

11⁄13 11⁄13

$y = 4$ [Plug this back into both equations above to get the x-coordinate of 3]; $3 = x$

I am joyous to assist you anytime.

7 0

3 years ago

Find the slope of the line y=1/8-1 show your work

sleet_krkn [62]

Answer:

-7/8

Step-by-step explanation:

y = 1/8 -1

y = 1/2^3 -1

y = 1 - (2^3)/2^3

y = 1-8/2^3

y = 7/2^3

y = -7/8

hope that helps <3

7 0

3 years ago

What is the range of the function f(x)=5x+4 when the domain is {-2,3,5}?

jonny [76]

Answer:

f (-2)=5×-2+4

= -10+4

= -6

f (3)=5×3+4

=15+4

=19

f (5)=5×5+4

25+4

=29

7 0

3 years ago