Please finish the functions on these 7,8 please 10 points :)

Please Finish The Functions On These 7,8 Please 10 Points :)

Answers

Answer 1

What you have so far is correct.

Problem 7 is a function because none of the x values repeat. Each x input goes to exactly one y output. The y values can repeat. If the y values repeat, then we don't have a one-to-one function.

In contrast, problem 8 is not a function. We have x = 1 go to y = 8 and y = 6 at the same time. This is one example showing we don't have one output for a given input.


Related Questions

Which graph represents a linear function?

Answers

Post a full photo of all the other graphs

Answer:

If it is not a straight it is not considered a linear function. The image does not show all of the graphs, but it is not a linear function.

What's the answer of 7/10×4​

Answers

Answer:

2.8 in decimal form

Step-by-step explanation:

Answer:

Im pretty sure its 2.8

Step-by-step explanation:

The measure of angle Q is 75 degrees. Find the measure of angle P.

Answers

Answer:

< P = 30

Step-by-step explanation:

PQR isosceles triangle

< R= 75

< P = 180 - ( 75 + 75 ) = 30

What is the equation for This graph ?

Answers

first you need to find the slope = 4 (let me know if you need held to find it)
next you need b
you replace the slope and one point in the equation
i chose (3,3) so:
3=4•3+b
b=-9
y=4x-9

Please please help! Its due soon!! Ill mark brainliest!!
I need side b, using tangent!! Thank you!!

Answers

Answer:

tan 68 degrees = b/60

60 * tan 68 degrees = b

b = 148.5 in tenths, 149 as a whole number, and 148.51 in hundredths

Step-by-step explanation:

Hope it helps!

Answer:

tan 68 degrees = b/60

60 * tan 68 degrees = b

b = 148.5 in tenths, 149 as a whole number, and 148.51 in hundredths

  . Step-by-step explanation:

Hope it helps!

(6x)^2 can be thought of as a vertical stretch by a factor of
O 6
O 36
O nothing

Answers

The answer would be 36 because you have to simplify

Noah’s recipe for one batch of sparkling orange juice uses 4 liters of orange juice and 5 liters of soda water.

Answers

That would me 9 liters of whatever your trying to get

Fred had $10.00 allowance to spend on books at the school book fair. He wanted to buy at least one comic book and one sports book. If the comic book he wanted was $4.67, and the sports book he wanted was $4.28, how much would he have left after buying both books?
A.
$5.33
B.
$1.05
C.
$5.72
D.
$8.95

Answers

Answer:

C

Step-by-step explanation:

4.67+4.28+= 8.95 -10=1.05

7th Grade Math
Please help
-7 = 1/3 a
Find the value of a

Answers

Answer:

[tex]\huge\boxed{a=-21}[/tex]

Step-by-step explanation:

[tex]-7=\dfrac{1}{3}a\to\dfrac{1}{3}a=-7\qquad|\text{multiply both sides by 3}\\\\3\!\!\!\!\diagup\cdot\dfrac{1}{3\!\!\!\!\diagup}a=(-7)(3)\\\\a=-21[/tex]

Type the correct answer in the box. If necessary, use / for the fraction bar and simplify the fraction. cos(75°)cos(15°) =

Answers

Answer:

1/4

Step-by-step explanation:

If you type cos(75)cos(15) into a scientific calculator, the answer comes out as 1/4.

The value of the trigonometric expression cos(75)cos(15) is 1/4 after applying the trigonometric identity.

What is trigonometry?

Trigonometry is a branch of mathematics that deals with the relationship between sides and angles of a right-angle triangle.

We have a trigonometric expression:

= cos(75°)cos(15°)

As we know the trigonometric identity:

cos(a)cos(b) = (1/2)[cos(a + b) + cos(a - b)]

a = 75

b = 15

Plug the above values in the trigonometric identity:

cos(75)cos(15) = (1/2)[cos(75 + 15) + cos(75 - 15)]

cos(75)cos(15) = (1/2)[cos(90) + cos(60)]

The trigonometric ratio is the ratio of the pair of a right-angled triangle.

The value of cos90 = 0

cos60 = 1/2

cos(75)cos(15) = (1/2)[0 + 1/2]

cos(75)cos(15) = 1/4

Thus, the value of the trigonometric expression cos(75)cos(15) is 1/4 after applying the trigonometric identity.

Learn more about trigonometry here:

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Solve for x:
3x+c=12
Please show work

Answers

Answer:

x=3 c=3

Step-by-step explanation:

How to solve for x is 12 divided by 3 equals 4 so x would equal 3 and C would give you an answer of 3 also if i am correct. 3×3 + 3 = 12

Nancy is knitting a scarf. It takes her 0.2 of an hour to knit each inch of the scarf. She wants the length of the scarf to be 60 inches.

Answers

Answer:

2 hours

Step-by-step explanation:

60 *20

Answer:

The answer would be 30 minutes.

Step-by-step explanation:

A concession stand charges $2.50 for a bag of popcorn. The stand has already sold 30 bags of popcorn. How many more bags x of popcorn must be sold to earn at least $110? Write your answer as an inequality.

Answers

Answer:14 more bags must be sold

Step-by-step explanation:

hope it helped cause 2.50 times 44 gives you 110 and you already have 30 so 44 minus 30 gives you 14

What does x an y represent

Answers

Answer:

x represents the bottom and y represents the top

Step-by-step explanation:

Answer:

grid

Step-by-step explanation:

So they x in the grid it a straight line in the middle ok. Then we have the y which is the one that's up and down in the grid. Also when the numbers are added that are ploted somewhere on the x goes first because x goes first in the alphabet.


Craig and Jeff are comparing their plans for downloading songs. Craig pays a monthly fee of $5.50 and then $0.25 per song he downloads. Jeff
pays $0.80 for each song he downloads. What number of downloaded songs result in Craig and Jeff having the same monthly cost?

Answers

Answer:

10 songs

Step-by-step explanation:

Let number of songs Craig and Jeff downloaded be s

5.50 + 0.25s = 0.80s

5.50 = 0.55s

s = 10

Write an equation in slope-intercept form that passes through the point (3,-5)
with a slope of 1.

Answers

Y = mx + b (slope form)
-5 = 1(3) + b
-5 = 3 + b
b = -8
final equation: y = x -8

hence explain x²-8x+20 is always positive

Answers

Answer:

It is always positive because the discriminant is negative and therefore has no roots. This can also be interperted as the equation will always be above the x-axis on the parabola and therefore always be positive.

Step-by-step explanation:

The value of the quadratic expression (x - 4)² + 4 will be always positive.

What is the equation of the parabola?

Let the point (h, k) be the vertex of the parabola and a be the leading coefficient. Then the equation of the parabola will be given as,

y = a(x - h)² + k

The quadratic expression is given below.

⇒ x² - 8x + 20

Convert the expression into a vertex form, then we have

⇒ x² - 8x + 16 + 4

⇒ (x² - 2 · x · 4 + 4²) + 4

⇒ (x - 4)² + 4

Thus, the value of the expression (x - 4)² + 4 will be always positive.

More about the equation of the parabola link is given below.

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I had four numbers: 12, 8, 4, and ????? However, I remember that their average was 11. Please, help me to remember the number that I forgot!!! The number that our old math teacher forgot is

Answers

Answer:

The number was 20

Step-by-step explanation:

As the average is 11 and the numbers are 4, so the total sum of numbers will be 11X4=44. now the sum of three numbers are (20+8+4)=24. So the last number will be= (44-24)=20. :)

Answer:

20, 12,8,4 average out to 11

Step-by-step explanation:

omni average calculator on google will help :)

Vincent is selling candy bars to raise money for his soccer team. He started with a full box of 20 candy bars and has sold
3
10
of them so far. If each candy bar costs $1.25, how much money has Vincent raised?

Answers

We conclude that Vincent has raised a total of $7.50

how much money has Vincent raised?

We know that initially, he has 20 candy bars.

He sells 3/10 of that total number, so the number of candy bars sold is:

N = (3/10)*20 = 6 candy bars.

And sells each for $1.25, so the total amount that has Vincent raised is:

R = 6*$1.25 = $7.5

We conclude that Vincent has raised a total of $7.50

If you want to learn more about fractions:

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help! this is algebra 1 and idk how to do it lol

Answers

Answer:

a. x+6 = 0

b. y-2 = 0

Step-by-step explanation:

Given point is:

(-6,2)

a. Line perpendicular to x-axis:

A line perpendicular to x-axis means that the line is vertical and parallel to y-axis. Any equation parallel to y-axis has the form

x = k

where k is the x-coordinate of the point from which the line passes.

So the required equation is:

[tex]x = -6\\x+6 = 0[/tex]

b. Line perpendicular to y-axis:

A line perpendicular to y-axis will be a horizontal line parallel to x-axis having the equation of the form

y = b

where b is the y-intercept

Required equation is:

[tex]y = 2\\y-2=0[/tex]

Hence,

a. x+6 = 0

b. y-2 = 0

I need help with my spanish


Can someone pls help

Answers

Answer:

It finally let me make an answer so here’s the answer:

1) he goes to el heladeria to get more ice cream

2) el banco to get money to pay

4) el mercado to get vegetables

5) el cafe to get more bread

The things you circle in the sentence for the correct verb are

1) comer (eat)

3) beber (drink)

4) usar (use)

5) comer (eat)

6) beber (drink) I hope this helps!

write down the factors of 18​

Answers

Answer:

Factors of 18 are 1, 2, 3, 6, 9, 18

The sum of 2 numbers is 150.One number is 12 more than the other number.What is the smaller number?​

Answers

the smaller number is 63 I think.

I think this because 150/2 is 75

75-12=63

the small number would be 63

the larger number just in case u need it btw is 87 I think


hope this helps

Answer: Why did you type on my answer "Thanks for the points".

Step-by-step explanation:

whats 100000x 109888888 -4000 + 185637?
ill give brainliest or whatever you want

Answers

Answer:

1.0988889e+13

Step-by-step explanation:

and i oop

En un estudio que preferencia entre mango verde y maduro, se encuestaron a 150 personas y el 60% prefiere mango verde. ¿Cuántas personas respondieron que prefieren mango verde?

Answers

Responder:

150 personas respondieron que prefieren el mango verde

Explicación paso a paso:

en un estudio de preferencia entre mango verde y maduro se encuestaron 150 personas 60% prefieren mango verde Cuántas personas respondieron que prefieren mango verde

paso uno:

datos dados

número total de personas encuestadas = 150

60% mango preferido

esto significa que 150 personas son 100%

y deja que X personas sean 60%

X = (60 * 150) / 100

X = 90

Puede verificarlo tomando el 60 por ciento de 150 de esta manera:

150 * 60/100 = 90

Can somebody please help me out

Answers

Answer:

Right so, you would first graph your center point. Then, based on the radius, you would make four points. Let's say your center point is (0,0) and your radius is 2. You would make a point at (-2,0), (2,0), (0,-2), and (0,2). You would then draw a circle through those points. Let me know if you need any further clarification!

What transformation moves Frame 1 to Frame 2?
A) Translation
B) Rotation
C) Reflection
D) Dilation

Answers

Translation is the answers

If 4(r + 2) – 13 = 11, what is the value of r?

Answers

Answer:

r = 4

Step by step explanation :

Step 1 : Add 13 to both sides.

4(r + 2) - 13 + 13 = 11 + 13

4(r + 2) = 24

Step 2 : Divide by 4 on both sides.

[tex]\frac{4(r+2)}{4} = \frac{24}{4}[/tex]

r + 2 = 6

Step 3 : Subtract 2 from both sides.

r = 4

The value of r is 4 in the given expression and this can be determined by using the arithmetic operation.

Given :

Expression -  4(r + 2) – 13 = 11

The following steps can be used to evaluate the given expression:

Step 1 - Write the expression.

4(r + 2) – 13 = 11

Step 2 - Add 13 on both sides in the above equation.

4(r + 2) – 13 + 13 = 11 + 13

4(r + 2)  = 24

Step 3 - Multiply 4 by (r + 2) in the above expression.

4r + 8 = 24

Step 4 - Subtract 8 on both sides in the above expression.

4r + 8 - 8 = 24 - 8

4r = 16

Step 5 - Divide 4 on both sides in the above equation.

r = 4

The value of r is 4.

For more information, refer to the link given below:

https://brainly.com/question/1957976

30+ points need it asap! :) pls show work.
Write a polynomial function f of least degree with the following zeros: 3, 4 + i

Answers

Answer:

[tex]f(x)=(x-3)(x^2-8x+17)[/tex]

Or:

[tex]f(x)=x^3-11x^2+41x-51[/tex]

Step-by-step explanation:

To find our factors, we can work backwards.

We know that 3 is a zero. This means that:

[tex]x=3[/tex]

Subtract 3 from both sides:

[tex](x-3)=0[/tex]

So, (x-3) is one of our factors.

We also know that (4+i) is a zero. So:

[tex]x=4+i[/tex]

First, let’s isolate the imaginary. So, subtract 4 from both sides:

[tex](x-4)=i[/tex]

Now, let’s square both sides:

[tex](x-4)^2=(i)^2[/tex]

Expand the left. Evaluate the right:

[tex](x^2-8x+16)=-1[/tex]

Add 1 to both sides. So, our factor is:

[tex](x^2-8x+17)=0[/tex]

Hence, our polynomial function is:

[tex]f(x)=(x-3)(x^2-8x+17)[/tex]

This is also the least degree since we did the most minimum we can do to solve backwards.

Further Notes:

If we want to convert this to standard form, we can distribute:

[tex]f(x)=(x^3-8x^2+17x)+(-3x^2+24x-51)[/tex]

Combining like terms will yield:

[tex]f(x)=x^3-11x^2+41x-51[/tex]

Complete the synthetic division problem below.
-1/ 2 8 6
What is the quotient in polynomial form?
O A. X-6
O B. X+6
C. 2x + 6
D. 2x-6

Answers

Answer:

c bc of -1/ 2 8 6 of you divide and then u multiple

The quotient of the synthetic division problem -1 | 2 8 6 in polynomial form is 2x + 6.

How to determine the quotient?

The synthetic division problem is given;

-1 | 2 8 6

Remove the number before the | sign

2 8 6

Remove the middle number;

2 6

Introduce a variable starting from an exponent of 0 (let the variable be x);

2x¹ 6x⁰

Evaluate the exponents;

2x 6

2x + 6

Hence, the quotient of -1 | 2 8 6 in polynomial form is 2x + 6.

Read more about synthetic division at:

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