I need help dont understand.​

I Need Help Dont Understand.

Answers

Answer 1
A is the only function.



If they list out the x’s (like in B and C) and they have two of the same x’s, it is not a function. If they have those circles (like in D) and one x goes to multiple y’s, then it is also not a function. Hope this helps!
Answer 2
I believe it’s A. Because each x only can have one y. Every other equation has two different y if the same x. (Sorry if it doesn’t make sense)

Related Questions

help please!!!!! i don't understand, any help would be great!! thank you!!

Answers

Answer:

c

Step-by-step explanation:

just substitute a big number into x like 10^6 as it approaches

[tex] + \infty [/tex]

and a big negative number like -10^6 as it approaches

[tex] - \infty [/tex]

An emerald pendant was marked up 150% from an original cost of $488. Last Friday, Cameron bought the emerald pendant and paid an additional 5% in sale tax. What was his total cost?

Answers

Given parameters:

Mark up percentage  = 150%

Original cost = $488

Sales tax = 5%

Unknown:

His total cost  = ?

Solution:

Marking up a good is the amount a sell adds to a product which makes its selling price usually for a profit.

 Since the emerald was marked up by 150%;

   New cost  = (1 + 1.5) x $488 = $1220

Now, the additional tax was 5%;

   Tax = [tex]\frac{5}{100}[/tex] x 1220 = $61

So, the total cost = New cost + tax  = $1220 + $61 = $1281

The sum of 5x and 2x is at least 14.

Answers

Answer:

it will be 40

Step-by-step explanation:

Find the slope of the following linear equation: 2x – 3y = 6
a. - 2/3
b. 2
c. 2/3
d. -2

Answers

c . 2/3 is the correct answer

Answer:

C. 2/3

Step-by-step explanation:

That's what i got personally, but i would wait for another answer to confirm

what does x represent in the equation is -2(bx-5)=16 if b is 3

Answers

Answer:

x = - 1

Step-by-step explanation:

Given

- 2(bx - 5) = 16 ← substitute b = 3

- 2(3x - 5) = 16 ( divide both sides by - 2 )

3x - 5 = - 8 ( add 5 to both sides )

3x = - 3 ( divide both sides by 3 )

x = - 1

can some please help me with this

Answers

Answer:

x = 25

Step-by-step explanation:

3x + 5 + 5x - 25 = 180 (collect like terms)

8x - 20 = 180 (add 20 on both sides)

8x = 200 (divide by 8 on both sides)

x = 25

Since they are supplementary that mean together they add up to 180 so that's why I added them together.

NEED HELP ASAP!!!!!!!!
A linear function has a slope of 11/3 and crosses the y-axis at -9. What is the equation of the line?

Answers

Answer:

B.

Step-by-step explanation:

630 divided 18 please I need to know ASAP!!

Answers

Answer:

35 :)

Step-by-step explanation:

Answer: 35

Step-by-step explanation:

D = Divide

M = Multiply

S = Subtract

B = Bring down

A wise woman once said ,”400 reduced by twice my age is 262”. What is her age ?

Answers

Answer:

131

Step-by-step explanation:

262 divided by 2 equals 131

umm i think it’s 131

What is the circumference of the circle?
r=22in d=44in

A. 222in
B. 2.5in
C. 125.23in
D. 138.23in

Answers

Answer: D

Step-by-step explanation:

You decide to go to the candy store in the mall. You arrive at the store with $25 and then purchase 3 candy bars. You then buy a giant candy snake for $12.50. When you leave, you have $8.75 left in your wallet. How much did each candy bar cost? Write the equation to represent the scenario. 8.75 - x - 12.50 = 25.00 25.00 - 3x - 12.50 = 8.75 25.00 - 3x - 8.75 = 12.50 25.00x - 12.50 = 8.75

Answers

Answer:

The cost of a candy is $1.25

Step-by-step explanation:

given the total amount at hand is $25

let the price of  candy be x

then the cost of 3 candy will  be 3x

the cost of a candy snake is $12.50.

balance at hand after the end of buying $8.75

the total expenses summed up must equal the initial amount at hand which is $25

the expression for the scenario is 3x+12.5+8.75=25

3x+21.25=25

3x=25-21.25

3x=3.75

x=3.75/3

x=$1.25

The cost of a candy is $1.25

Find the value of a and b need help ASAP

Answers

Answer:

Step-by-step explanation:

<a = 85° ( Vertically Opposite Angles )

<b = 180 - 85 = 95° ( Adjacent Angles )

Hope this helps

Plz mark as brainliest!!!!!!!!

Answer:

<a=85

<b=95

Step-by-step explanation:

<a is going to be the same as the other angle is across from it. So <a equals 85 degrees. So now since we know that two parts are 85 degrees we add 85 + 85 and we get 170 degrees. Since the whole thing is 360 degrees we need to subtract the 170 degrees that we already have. So 360-170 is equal to 190 degrees. Now since <b is the same as the angle across from it is we just need to divide the remaining degrees in half. So we take the 190 degrees and divide that in half. When you divide that in half you get 95 degrees. So <b is 95 degrees.

4-2(x-3)=24 whats the answer to it

Answers

Solution:-

[tex]4 - 2(x - 3) = 24 \\ [/tex]

[tex]⇒4 - 2x + 6 = 24 [/tex]

[tex]⇒ - 2x = 24 - 6 - 4[/tex]

[tex]⇒ - 2x = 14[/tex]

[tex]⇒x = \frac{14}{ - 2} [/tex]

[tex]⇒x = - 7[/tex]

Hence, Answer is -7.

_______________________

Answer:

- 7

Step-by-step explanation:

Step 1:

4 - 2 ( x - 3 ) = 24      Equation

Step 2:

4 - 2x + 6 = 24           Multiply

Step 3:

- 2x + 10 = 24       Combine Like Terms

Step 4:

- 2x = 14           Subtract 10 on both sides

Step 5:

x = 14 ÷ - 2       Divide

Answer:

x = - 7

Hope This Helps :)

f students receive 50% profit of $20 for selling one chocolate box in a fundraiser, how much money would they make if they sold 100 products? *

Answers

Answer:

the answer is 50$ hope it helps :)

Step-by-step explanation:

The temperature on Monday was 14 degree Celsius. On Tuesday the temperature decreased by 5 degree. On Wednesday, the temperature decreased another 10 degree. On Thursday the temperature increased by 8 degrees. What was the temperature at the end of the day on Thursday?

Answers

Answer:

7 degrees

Step-by-step explanation:

The temperature in Monday was 14 degrees

On tuesday the temperature decreased by 5 degrees

On Wednesday it decreased by 10 degrees

On thursday the temperature increased by 8 degrees

Therefore the temperature at the end of the day on Thursday can be calculated as follows

= 14 - 5 - 10 + 8

= 7

Hence the temperature at the end of the day on Thursday is 7 degrees

simplify negative 8 over 3 divided by negative 2 over 6. . (5 point

Answers

(-8/3)/(-2/6)

negative times negative equals positive

simplify -2/6 to -1/3 AND FLIP THE -1/3 TO -3/1

-8/3*-3/1

cancel out the 3s and make them 1s

cancel out the negatives and make them positive

8/1 = 8

8

What is the distance between the points (11, -18) and (-10, -18) in the coordinate plane?

Answers

Answer:

21 units

Step-by-step explanation:

a women jumps 25 times in 10 seconds how many times will she jump in 30 seconds

Answers

answer:

75 times

explanation:

just add 25 per 10 seconds

Answer:

The correct answer is 75 jumps in 30 seconds.

Step-by-step explanation:

All you do is multiply 25x3=75. Because 3x10=30.

Solve the equation for x. 7- x= 12

Answers

12 is the correct answer
x= 5 because you do the opposite of add 7 to both sides which is subtract 7 and take away the 7 because it’s zero and 12-7 which is 5 so x=5

KIM AND HER MOM HAVE SOME ITEMS TO DONATE TO
FAMILIES IN NEED FOR CHRISTMAS BASKETS. THEY
HAVE 100 ROLLS AND 25 PUMPKIN PIES. THEY WANT
EVERY BASKET TO BE EXACTLY THE SAME, AND THEY
DON'T WANT ANY LEFTOVER FOOD. WHAT IS THE
LARGEST NUMBER OF BASKETS THAT THEY CAN MAKE?

Answers

for a second i thought you were talking about the kim kardashians lma.o

and btw the answer is 4

Consider the function f(x) = 9x^2- 3x + 3

Determine the output produced by the input value x = 3.

Output: F(3) =

Answers

Answer:

6x3(067)m

Step-by-step explanation:

uhm do the math

The elevation of the harbor is ____ than the elevation at sea level.

1. Less

2. greater

Answers

Answer: less

Step-by-step explanation:

if when you say harbor you’re referring to were ships are docked im pretty it doesn’t get as elevated as the sea

The sum of the first three terms of a sequence is 6 and the fourth term is 16

Answers

Answer:

              a₁ = -5, d = 7,  a₂ = 2, a₃ = 9, a₄ = 16

equation of sequence:    [tex]\boxed{\bold{a_n=7n-12}}[/tex]

Step-by-step explanation:

a₁ + a₂ + a₃ = 6    

a₁ + a₁ + d + a₁ + 2d = 6

3a₁ + 3d = 6

a₁ + d= 2     ⇒ a₁ = 2 - d

a₄ = 16

a₁ + 3d = 16

2 - r + 3d = 16

2d = 14

d = 7

a₁ = 2-7 = -5

a₁ = -5, d = 7   ⇒  a₂ = -5+7 = 2, a₃ = 2+7 = 9, a₄ = 9+7 = 16

equation of arithmetic sequence:

[tex]a_n=a_1+d(n-1)\\\\a_n=-5+7(n-1)\\\\\underline{a_n=7n-12}[/tex]

1) a+b=b+a
2) (a+b)+c=a+(b+c)
3) n+0=n
4) c(a+b)=ca+cb
5)n-0=n
please help and answer all i will mark brainliest !

Answers

you want us to solve it or tell you what property it is

What is the measure of ZBFA?
D
o
3x+4
2x+16
Ε
F
5x-10
В
A
Idk

Answers

Answer:

∠BFA = 50°

Step-by-step explanation:

To find∠ BFA we first have to find ∠BFE this is how we'll do it!

5x-10 + 3x+4 + 2x +16 = 180 (collect like terms)(5x+3x+2x)(-10+4+16)

10x + 10 = 180 (minus 10 on each side)

10x = 170 (divide by 10 on each side)

x = 17

Plug in. (Plug in the rest of the equations)

5(17)-10=75°

3(17)+4=55°

2(17)+16=50°

∠BFA would equal 50 degrees because it is vertical of ∠DFE.

When two angles are vertical to each other they equal the same amount or in other words they're congruent.

Hope this helps!!!

I apreciate your help thanks. ​

Answers

Answer:

i think its A

the femur family has a monthly budget of $5,500. mrs, demir works full time and takes home $4,000 each month. mr. demir earns $16 per hour. how many hours per month must mr. demir work at his part-time.job to.make sure that he and mrs. demir have met their monthly budget?

Answers

Answer:

93.75 hours

Step-by-step explanation:

5500-4000=1500

1500/16=93.75

Please answer correctly !!!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!!

Answers

Answer:

D

Step-by-step explanation:

180 is a flat line therefore straight!!!

Two supplementary angles are in the ratio 2:7. Find the measure of the Acute angle.

Answers

Answer:

y=42.3333333333 (repeating)

Step-by-step explanation:

You need to find the corresponding side. You can see D H is corresponding to E C. So here is what you have to do, find x to (8x - 43) and (2x + 13).

2x + 13 + 8x - 43= 90

10x -30 = 90

     +30  +30

10x = 120

/10     /10 = 12

to check if this is right take x which is 12 and plug it in.

8 x 12= 96 then 96 - 43= 53

2 x 21= 24 then 24 + 13= 37

Next you take 53 and 37 and add it together

53 + 37= 90

about that corresponding side, now you know D H and E C both equal 53

Now you can solve your equation.

53 + 2y + y= 180

53 + 3y = 180

-53           -53

         3y = 127

         /3     /3    

y = 42.333333 (repeating)

to check if this is right take y which is 42.3333333 (repeating) and plug it in.

2y means to multiply y two times so...

42.3333333 (repeating)+ 42.33333333 (repeating)= 84.6666666 (repeating)

y = 42.333333333 (repeating)

E C = 53

add all the numbers together

42.333333 (repeating) + 84.66666666 (repating)+ 53= 180

Therefore y equals 42.33333333 (repeating)

Can someone actually help me before I give up!!!!!!!!!
AND IF YOU POST JUST FOR POINTS I WILL REPORT YOU TILL YOUR BOOTED OFF

Answers

Answer:

[tex]\angle 1=39\textdegree[/tex]

Step-by-step explanation:

Remember that the sum of the interior angles of a triangle always equal 180. Therefore:

[tex]\angle 1+\angle Y+102=180[/tex]

Let's subtract 102 from both sides. This yields:

[tex]\angle 1+\angle Y=78[/tex]

Now, notice the that both ∠1 and ∠Y have exactly one arc mark.

Arc-marks denote congruence. Therefore, ∠1 and ∠Y are congruent to each other. In other words:

[tex]\angle 1=\angle Y[/tex]

So, we can substitute ∠Y for ∠1 for our equation. This yields:

[tex]\angle 1+\angle 1=78[/tex]

Combine like terms:

[tex]2\angle 1=78[/tex]

Divide both sides by 2. So, the measure of our angle is:

[tex]\angle 1=39\textdegree[/tex]

And we're done!

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