Mathematics Middle School

(Help asap!) Select Is a Function or Is not a Function to correctly classify each relation.

which one is a function and which is not?
{(3,2),(6,4),(9,6),(12,8)}
{(2,3),(2,5),(3,6),(9,4)}
{(2,4),(6,3),(4,8),(6,6)}
{(3,4),(5,2),(6,8),(6,4)}

Answers

Answer 1
{(3,2),(6,4),(9,6),(12,8)} is the function!
Answer 2
I don’t understand

Related Questions

C.Explain in words what did you find to find the cost per class in part B

Answers

Answer:

What was part B?

Step-by-step explanation:

There is no picture.

I need the answer nowwwww show your work!!!!
The Cost C (in dollars) of making n bracelets is represented by C=45n+125. How many bracelets are made when the cost is $845?

Answers

So we know the cost is $845, which means this is the cost or our C. Lets input this into our equation and solve.

845 = 45n + 125.

Subtract from both sides:

845-125 = 45n + 125-125

720 = 45n

Divide by 45:

720 / 45 = 45n / 45

16 = n

This means that 16 bracelets can be made if the cost is 845.

We can also re-input the information into the equation to be extra sure!

845 = 45 (16) + 125.

845 = 720 + 125.

845 = 845

Yes!

I hope this helps! :)

hope this helps!
16 bracelets

p = 2l+2w

show your work; solve for w.

subject: math, literal equations

Answers

P=2l+2w first step is to subtract the 2l on both sides to get p-2l=2w. Now divide by 2 on both sides to get p/2-l=w
(p/2)-L = w
Hope the photo helps

Point R is at (2, 1.2) and Point T is at (2, 2.5) on a coordinate grid. The distance between the two points is ____. (Input numbers and decimal point only, such as 8.2.)

Answers

Answer:

we can see that the x or the first number in both are 2 so there is no distance there, where there is a distance is the y which to find out we can just do 2.5-1.2=1.3

the distance between the two points is 1.3

1.3 that is the answer yw

Question 1(Multiple Choice Worth 1 points)

(04.05 MC)

Remo needs to buy a countertop for a bathroom. He calculated the area as 10 square feet. The actual area is 9.5 square feet. What is Remo's percentage error?

0.5%
0.95%
5%
5.26%

Answers

Answer:

5%

Step-by-step explanation:

Lets say 10 add a 0 = 100 9.5 add a 0 = 95.0 (move ok decimal place) so there is a 5% error.

Solve for x.
4 (x + 1 1/3) = 9 2/3
Enter your answer as a mixed number in simplest form.

Answers

Answer:

x = 13/12

x = 1 1/12

Step-by-step:

4 (x + 1 1/3) = 9 2/3

4x + 5 1/3 = 9 2/3

subtract 5 1/3 from each side

4x = 4 1/3

divided by 4 on each side

x = 13/12

x = 1 1/2

X = 1 1/4


I know fractions is hard and I hope this helped you ! It’s hard for me to explain while typing.

what is 159,095 rounded to the nearest hundred?

Answers

Answer:

159,100 is the answer

Step-by-step explanation:

159,100 is the answer because 159,095 is closest to 159,100 than 159,000. So therefore, 159,100 is the answer.

Answer:

159,100

Step-by-step explanation:

200,000 - rounded to the nearest hundred thousands

160,00 - rounded to the nearest ten thousands

159,00 - rounded to the nearest thousands

159,100 - rounded to the nearest hundreds

159,100 - rounded to nearest tens

159,095 - rounded to nearest ones

While rounding off to the nearest hundred, if the digit in the tens place is between 0 – 4 i.e. < 5, then the tens place is replaced by ‘0’.

If the digit in the units place is equal to or >5, then the tens place is replaced by ‘0’ and the hundreds place is increased by 1.

You are converting the numbers shown below into scientific notation. Which of the options will be a number times 10−6? Select all that apply.
A)0.00578
B)0.00000445
C)0.000002243
D)0.000091

Answers

C and b , both can be a number multiplied by 10 to the power of -6
A is the answer ok I hope this helps

An item is priced at $13.35. If the sales tax is 8%, what does the item cost including sales tax? You may need to round your answer to the nearest cent.


*First one to answer correctly get brainliest

Answers

$14.42. I think that is the answer cause the sale tax is $1.07
14.58 rounded, multiply price by .08, then add price, pretty simple math

USE PICTURE TO ANSWER QUESTION

Answers

Answer:

k = 24

y = 24x

Step-by-step explanation:

72/3 = 24

y = 24x

72 = 24(3)

72 = 72

Hope this helps!

K=24
Y=24x

I hope this helped

PLEASEEEEE HELPP( look at picture )

Answers

Answer: Alright i know exactly how to do this :) i need ur help though it's been a bit since i did this the types they are asking for what are they?

I need a multiple choice otherwise i dunno how to help with identifying them

The math is simple tho

16x-2=15x+4

add 2 to -2 to elimate itself add 2 to +4 =6

16x=15x+6

we need x by itself subtract 15x from itself and then 16x

1x=+6 = x is 6

The rest go the same-

Step-by-step explanation:

Please answer all of them i need this ASAP

Answers

first one is 548.90$

Answer:

1. $548.90

2. $349.30

3. $160,650

4. 580

5. 20.14%

6. 64.8%

Help me with this. Please! I need it urgently!

Answers

The open side of the inequality sign indicates the larger number. So 5 > 3, 4 < 6.

This, ≥, means it is bigger than or equal.

To show < or >, the purple arrow points to where the unknown value (x or n or k or b etc.) could be, and the dot is unfilled, or white, indicating that number is not a possible value of the unknown number.

To show ≤ or ≥, the purple arrow works the same way, it points to the where the unknown value could be. But the dot is filled, showing that the number could be the unknown value.

So for question 11, the answer is x ≤ 0 (x is less than or equal to zero).

For question 12, the answer is x > 3 (x is more than three)

Hope this helped :)

What do you want us to answer

HELP PASKAJAJ MEEEEE PLEASE

Answers

Simple answer is 244

what is 3438 x 24 + 24 -24 divided by 4

Answers

Answer:

82512

Step-by-step explanation:

Answer:

(3,438 x 24) + 24 - (24 / 4)

82,512 + 24 - 6

82,536 - 6

= 82,530

help pls and letter d is 4 1/2

Answers

The answer is B

12 divided by 3/2 is the same as 12 x 3/2

Do this to 8 to get the answer B

Answer: The answer is B.

Step-by-step explanation:

To figure out, you must first turn the mixed fraction (3 1/2) into an improper fraction (7/2). We can do so by:

3 * 2 = 6

6 + 1 = 7 or 7/2

Next, you follow the rules of KCF: Keep, Change, Flip. Keep the first fraction, Change the sign to its inverse operation, and Flip the second fraction.

Our original equation is 7/2 /(divided by) 3/2 = ?

1. Keep the first fraction

7/2 / 3/2 = 7/2 / 32

2. Change the sign to its inverse operation

7/2 / 3/2 = 7/2 * 3/2

3. Flip the second fraction

7/2 * 3/2 = 7/2 * 2/3

Now, solve.

7/2 * 2/3

7 * 2 / 2 * 3 = 14/6

To make this a proper mixed number, first simplify.

14/6 / 2 = 7/3

Now, figure out how many wholes are in 7/3.

7/3 / 3 = 2 1/3

This is because 2 times 3 is six, and 7 minus 6 equals 1, or 1/3.

Therefore, the answer is 7/3 OR 2 1/3 OR B

add or subtract
2+(−9)=

Answers

Adding a negative is like subtracting a positive. 2+(-9) equals the same as 2 - 9= -7

During a sale, cameras were discounted 30% from their original price of $295.99. To the nearest cent, how much was the camera during the sale to the nearest cent?

Answers

207.19 simple math.

Solve dis sushma if u r so smart

Answers

Answer:

[tex]f(2)=-2[/tex]

Step-by-step explanation:

Looking at the graph we can see where the y value is located when [tex]x=2[/tex]. From this, we can determine that at an x value of 2, the y value is -2.

The total is -2 hope it helps

Jessica ran on the track team at her school. She finished a 200-meter race in 54 seconds.

1. What was Jessica's average speed, in meters per second, for the 20-meter race?

Jessica ran in a 50-meter race next. On this shorter distance, Jessica's speed was 1 meter per second faster than her speed in the 200-meter race.

How many seconds did it take Jessica to complete the 50-meter race?

Answers

Answer:

I'm not sure but I think its 54 meters per second

A motorboat moves across a lake at a constant speed. When it begins, it is 55 km from the shore. After 12 minutes, it is 19 km from the shore. Which function describes the motorboat's distance from the shore?
A. y = –12x + 19
B. y = –3x + 55
C. y = 3x + 55
D. y = –12x + 55

Answers

Answer:

y= _3x+55

Step-by-step explanation:

we conqet two points
(0,55)  (12,19)

55=B                       subsiquent two points into the equation
19=a,12+55
a=-3
b=55
so we choose B

Answer:-3x=55

Step-by-step explanation:I had to do it

pls pls help help pls help me out

Answers

Answer:

49

Step-by-step explanation:

28 / (4/7)

= 28 * 7/4

= 7*7

= 49

Answer:

The answer is 49

Step-by-step explanation:

Trust me I'll edit and show my work if you'd like but there

Giving brainliest to the correct answer please hel

Answers

Answer:

3.805 x 10^7.

( D.)

Step-by-step explanation:

the answer is d
= 3.805 x 10^7

PLease help me ill give brailiest n if you can put an explaination TvT im not that great with math

Answers

Answer:

/24

Step-by-step explanation:i am not that good but to me looks like /24 i hope it is a good A :}

Answer:

Square Root of 26 = 5.9

Square Root of 20 = 4.7

Square Root of 24 = 4.8

Square Root of 27 = 5.1

So, C, Square Root of 24 is the correct one!

help if you know pls and thanks

Answers

5/14 is the answer
Good luck on the test lol-

Solve for x.
3/5 (x − 7/10)= −3 1/4
Enter your answer as a mixed number in simplest form.

i miswrote this the first time it was 7/10 not 7 1/0

Answers

Answer:

3x/5 - 367/100

Step-by-step explanation:

Hey there!

I believe your answer would be:

X= -4 43/60

find the gcf of 30 and 66

Answers

Answer:

6 is the GCF of 30 and 66

Step-by-step explanation:

The GCF of two non-zero integers, x(30) and y(66), is the greatest positive integer m(6) that divides both x(30) and y(66) without an remainder.

Which graph shows the correct solution to the inequality below?

Answers

Answer:

Third Option

Step-by-step explanation:

3x + 18 > 6x - 9

We have to find the value of x for this

Subtract 18 from both sides to leave 3x alone

3x > 6x - 27

Subtract 6x from both sides to be able to find the value of x

-3x > -27

Divide by -3 on both sides

x > 9

The answer would be the third option, since X is anything greater than 9

The second one is the answer

What is the constant of proportional for y=3/4x

Answers

Answer:

3/4

Step-by-step explanation:

I say that because it says that 3/4x = y. So, whatever it is it would be 3/4

3/4 because 3/4x equals y so it would always bet three quarters

Please answer the picture

Answers

Answer:

-15x + 3

Step-by-step explanation:

expand

3 times -5x = 15x

3 times 1 = 3

Answer:

−15x+3

Step-by-step explanation:

3(−5x+1)

= (3)(−5x+1)

= (3)(−5x)+(3)(1)

= −15x+3

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