Mathematics Middle School

PLEASE HELP!!
Which relation is a function?
A. {(4, 0), (4, -5), (4, -2), (2, -4)}
B. {(0, 1), (1, -4), (0, 5), (1, -7)}
C. {(3, 4), (1, -2), (-5, 4), (2, 2)}
D. {(3, -1), (2, 3), (10, 2), (10, 8)}

Answers

Answer 1

Answer:

only c is function as it has unique images

others are not function because image ain't unique

Answer 2
The answer is C cuz it is 3,4

Related Questions

Which of the following inequalities is equivalent to -6 > x ?

x ≤ -6
x > -6
x ≥ -6
x < -6

Answers

Answer:

x < -6

It is equal to -6 > x.

Answer:

x < -6

Step-by-step explanation:

In the expression 14b what is the coefficient? *

Answers

Answer:

14

Step-by-step explanation:

What is the slope of the line graphed below?

A. 3
B. -3
C. 1/3
D. -1/3

Answers

Answer:

c

Step-by-step explanation:

The answer is C im pretty sure :)

the measure of an angle is 12 degrees. what is the measure of its supplement

Answers

Since the measure of an angle is 12 degrees less than the measure of its supplement, then x=180-x-12 or 2x=168 or x=84 and 180-x=96. Step 4. ANSWER: The angle is 84 degrees and its supplementary angle is 96 degrees.

Answer:

168

Step-by-step explanation:

Supplementary angle is two angles that total 180 degrees.

180-12=168

Mark is buying a new cell phone at Cell Phone Express. The sales brochure includes the chart below.
I WILL MARK BRAINLIEST TO BEST ANSWER 50 POINTSSSS

Answers

Answer:

its the first one

Step-by-step explanation:

multiply .12 x 500= 60$

.12 x 800=97$ and so on..

your answer is C=0.12m

Beth owes $38000 in student loans, the interest rate on her loans is 8.25% per year. She will be paying these loans off for 20 years. How much will Beth pay altogether?

Answers

$100,700 is the answer of the question

Answer:

i think its $100,700

Step-by-step explanation:

can somebody help me?

Answers

IT IS A AND B ..... :)

Answer:

A. and B. a quadrilateral is a 4 sided figure and a parallelogram is a shape with sides paralell.

HOPE THIS YOU

Step-by-step explanation:

Matthew has lived in NY for 10 years. Matthew earns $17.25 per
hour. He worked 5.8 hours on Friday, 4.5 hours on Saturday, and 8
hours on Sunday. How much money did Matthew earn in all on Friday,
Saturday, and Sunday?

Answers

Answer:18.3

Step-by-step explanation: 18.3 because 5.8 + 4.5 =10.3 then add 8 its 18.3

Answer:

$315.68

Step-by-step explanation:

We would first add up all of the hours, so that would be 5.8+4.5+8 to get 18.3 hours. Since it is saying $17.25 per hour we would multiply 17.25 and 18.3 to get 315.675. But, because we are dealing with money, our answer would be rounded to the nearest hundredth. So, Mathew earned $315.68 on Friday, Saturday, and Sunday altogether.

g÷ 5/8 =1
basically its asking what divided by 5/8 = 1

Answers

Answer:

5/8 divided by 5/8 = 1

Step-by-step explanation:

First, you know that dividing by a fraction is the same as multiplying by its reciprocal, so dividing by 5/8 is the same as multiplying by 8/5.

[tex]g / 5/8 = 1\\g * 8/5 = 1[/tex]

Now, multiply both sides by 5 to get rid of the fraction.

[tex]8g = 5[/tex]

divide both sides by 8

[tex]g = 5/8[/tex]

It’s asking you to what 5/8= 1 to do basically you have to multiply the 8 to both sides and then you probably will get your answer but I’m not to sure

Write in exponential form


8= ?
​

Answers

Answer:  2.08

Step-by-step explanation:

It’s 8 and 1 on top the 8

Write the phrase as an expression

13 subtracted from a number x

An expression is

Answers

Answer:

13-x

Step-by-step explanation:

13-x ?? Like this person said?

The model below represents an equation. Write the equation that is modeled then find what value of x makes the equation true.
HELP HELP HELP PLZ PLZ

Answers

Answer: x=-6

Step-by-step explanation:

Equation: 5x+2=6x+8

X=-6 to check just plug in the value of x to see if it equals

Please answer!! What's the slope?

Answers

Answer:

B.) undefined

Step-by-step explanation:

It is a vertical line therefore is undefined because

a horizontial line is a line with zero slopea diagnal line from the left bottom to the right top { / } is a line with a positive slopea diagonal line from the left top to the right bottom { \ } is a line with a Negitive slope.

The measures of the angles in △ABC are given by the expressions in the table.

Angle Measure
A 65°
B (3x−10)°
C ​​​​(2x)∘
Find the value of x. Then find the m∠B and m∠C.

Answers

Answer:

180-65=3x-10+2x

180-65+10=3x+2x

125=5×

25=x

AngleB= 3•25-10=65

AngleC= 2•25=50

Step-by-step explanation:

MK am I right just wanna check

Answers

You are wrong it’s is not 90° it’s 55.1 because 34.9 would almost be closed therefore it’s 55.1 (picture of 90°angle)

GEOMETRY SMART PEOPLE WILL GIVE BRAINLIEST!

A secant line contains a chord ___

always
never
sometimes

Answers

Answer:

A secant line contains a chord always

Step-by-step explanation:

A line intersecting in two points is called a secant line, in one point a tangent line and in no points an exterior line. A chord of a circle is the line segment that joins two distinct points of the circle. A chord is therefore contained in a unique secant line and each secant line determines a unique chord.

Answer:

A secant line contains a chord ___ always

Step-by-step explanation:

Find the rate of change from 2012 to 2016

A. -10.5 students per year
B. 10.5 students per year
C. -11.25 students per year
D. 11.25 students per year

Answers

Answer:

D. 11.25 students per year

Step-by-step explanation:

rate of change

[tex] = \frac{400 - 355}{2016 - 2012} [/tex]

[tex] = \frac{45}{4} [/tex]

=11.25

The rate of change from 2012 to 2016 is 11.25 students per year.

Therefore, the correct answer is D.

Given that a graph is showing the number of students in a class.

We need to find the rate of change from 2012 to 2016.

Also, from the graph we can see the number of students in 2012 and 2016 was 355 and 400 respectively.

To find the rate of change from 2012 to 2016, we can use the formula:

Rate of change = (Final value - Initial value) / Time interval

In this case, the initial value is the number of students in 2012, which is 355, and the final value is the number of students in 2016, which is 400.

The time interval is 4 years (from 2012 to 2016).

Plugging these values into the formula, we get:

Rate of change = (400 - 355) / 4

= 45 / 4

= 11.25

Therefore, 11.25 students have changed between 2012 and 2016 with this rate of change.

Learn more about rate of change click here;

https://brainly.com/question/29181688

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The Wagner school store is having a sale! At the sale this week, a life sized stuffed animal of Wagner’s mascot is being sold for $158.40. This is a 52% discount of the original price. What is the original price? If necessary, round to the nearest cent.

Answers

Answer:

$330

Step-by-step explanation:

Please see the attached picture for the full solution.

☆ There is no need to round the answer off to the nearest cents as the answer is a whole number.

ill give Brainliest to first CORRECT answer PLEASE HELP ASAP

Answers

Answer:

8

Step-by-step explanation:

Answer:

8km

Step-by-step explanation:

Can you please show your work. :)

Answers

Answer:

I can't even see that one

For every 3 green marbles James has, he has 2 yellow marbles. What is the ratio of green to yellow marbles? If James has 12 green marbles and 8 yellow marbles, draw a visual model to represent the total marbles.

Answers

Is is a 3 to 2 ratio

BRAINLIEST AND 30 POINTS COME QUICK SO YOU GET IT!
A scatter plot is shown below:

Graph shows numbers from 0 to 10 at increments of 1 on the x axis and number s from 0 to 10 at increments of 1 on the y axis. Scatter plot shows ordered pairs 1, 9.1 and 2, 8 and 3, 7.6 and 4, 6.1 and 5, 5 and 6, 4 and 7,4 and 8, 3 and 9, 2.5 and 10, 1.

Which two ordered pairs can be joined to draw most accurately the line of best fit for this scatter plot?
(4.5, 10) and (10, 6.5)
(0, 9.8) and (10, 1.2)
(0, 4) and (5, 0)
(0, 6) and (7, 0)

Answers

I would go with the third one

Hiii!! I need help with these questions thank you so much!

Answers

Answer:

1) 36 feet

2) 240cm

Step-by-step explanation:

Question 1:

[tex]A=(4x+1)^{2}[/tex]

[tex]P = 4(4x+1) = 16x+4[/tex]

[tex]16(2)+4 = 36ft[/tex]

[tex]Perimeter = 36ft[/tex]

Question 2:

[tex]P = 4(3x-15)=12x-60[/tex]

[tex]P = 12(25)-60=240cm[/tex]

number one is 36ft, i hope this helps

Which expression is NOT equivalent to (6x + 10)? A.3x + 5 B.1/2(6x) + (10) C.6/2x+10/2 D.3x + 10 --------------------------------------------> Please help :>

Answers

Answer:

A, C

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

How many buses do you need for 650 people if each bus holds 100 people?


pls answer now for the 30 points

Answers

Answer:

7

Step-by-step explanation:

because if each bus holds 100 and there is 650 we would need 7 buses

6 buses would be full, 1 would be half full

Answer:

7 buses

Step-by-step explanation:

We cannot have half a bus, so,

100 x 6.5=650

round up to

700

700 / 100=7

Mrs. Little would like to set up each station to be able to make 64 pancakes. How many teaspoons of salt should be measured out for this quantity of pancakes?

(Salt 3/4 tsp of salt)

Answers

Answer:

48

Step-by-step explanation:

all you do is 64 times 3/4

48 tsp of salt should be measured for 64 pancakes.

What is Equation?

Two or more expressions with an equal sign is called as Equation.

Given,

Mrs. Little would like to set up each station to be able to make 64 pancakes and Salt for 1 pancake is 3/4 tsp.

We need to find how many teaspoons of salt should be measured for 64 pancakes.

1 pancake=3/4

64 pancakes=x

Now, x=3/4×64

x=48.

Therefore 48 tsp of salt should be measured for 64 pancakes.

To learn more on Equations click:

https://brainly.com/question/10413253

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PLEASE HELP!!!!
Nelson is tired of bullying the kids at school and decides to start working 2 jobs.
He can work no more than 10 hours each week between the 2 jobs. House Cleaning pays $5 per hour and his sales job pays $8 per hour. He needs to earn at least $56 each week to pay his bills.
Write a system of inequalities that shows the various numbers of hours he can work at each job.
x = House cleaning
y = sales job

Answers

if i’m being honest probably sales job you would make more money but you should check it x

Answer:

5:8

10:16

you get the idea

In each box, 20% of the total candies are grape flavored.


In a box of 45 candies, how many are grape flavored?


Enter the missing value in the box to complete the ratio table.

Answers

Answer:

9

Step-by-step explanation:

20 x 5 = 100

45/5 = 9

9 to 20 = 11

45 to 100 = 55

55 = 5<--- Linear

11

(since the total answer is linear, the answer is right)

9 are grape flavored

A wedding photographer and their assistant work together to photograph weddings. The rates are : 50 dollar sitting fee, plus 45 dollars per hour for the photographer, and 15 dollars an hour for the assistant


Write an expression to represent the total cost for photography in a wedding in two different ways.

Answers

Answer:

I belive 1,425

Step-by-step explanation:

An expression would be: 50 + 45(p) + 15(a)

25=2y - 15 solve y AND SIMPLIFY HELP ME PLEASEE

Answers

Answer:

y=20

Step-by-step explanation:

25+15=40

2y=40

40/2=20

y=20

Answer:

y = 20

Step-by-step explanation:

25=2y - 15

2y - 15 = 25

2y - 15 + 15 = 25 + 15

2y = 40

2y ÷ 2 = 40 ÷ 2

y = 20

__________________________

2y - 15 = 25

2(20) - 15 = 25

40 - 15 = 25

25 = 25

Other Questions
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