Mathematics High School

Explain why the relation represented by each equation is or is not linear.
a. y=2+3x
b. y=2x(x - 5) - 2x2
C. y=4x2
d. y= 500

Please help T-T

Answers

Answer 1

Answer:

A, b, c, y are linear becouse every value of domain has one value in range

Step-by-step explanation:

If you need any explanation in it or anything on math you can communicate with me on Whats on this number +201557831028 or in email or face or anything

Related Questions

Help plz. I don't get this.

Answers

Answer:

6/4

Step-by-step explanation:

up 6 and over 4

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　　°　　　•　　.°•　　　 ✯　　　★　*　　　　　°　　　　 　°·　　                          

　　°　　　•　　.°•　　　 ✯　　　★　*　　　　　°　　　　 　°·　　                           .　　　•　° ★　•  ☄

　　°　　　•　　.°•　　　 ✯　　　★　*　　　　　°　　　　 　°·　　                           .　　　•　° ★　•  ☄▁▂▃▄▅▆▇▇▆▅▄▃▁▂

Make a triangle to find c, the hypotenuse.

Using the Pythagorean Theorem:

a^2+b^2=c^2

4^2+6^2=c^2

16+36=c^2

52=c^2

7.211102550927=c

7.2~c

I need help on how to get the answer too number 27.

Answers

a^2 + b^2 = c^2
3^2 + 8^2 = c^2
9 + 64 = c^2
73 =c^2
take the square root of each side
c= 8.544

Three-twelfths of the girls on Jamilia’s softball team missed practice. Which of the following is equal is equal to 3/12?

Answers

3/12=1/4 or 25%. You can simply 3/12 by 3. 3/3=1 and 12/3=4, and therefore: 3/12=1/4.

Marshallhasalreadyjarred1literofjamandwilljaranadditional7litersofjameveryday.HowmanydaysdoesMarshallneedtospendmakingjamifhewantstojar22litersofjaminall?

Answers

Answer:

thanks for the points, don't forget to drink water

explanation:

give me crown please

Surface area question:

Answers

Answer:

190π (not part of the answer choices)

Step-by-step explanation:

The surface area of a cylinder can be found using the formula below:

[tex]SA=2\pi r^2+\pi dh[/tex] where [tex]r[/tex] is the radius of the base, [tex]d[/tex] is the diameter of the base and [tex]h[/tex] is the height of the cylinder.

Plug in the given values

[tex]SA=2\pi (\frac{10}{2}) ^2+\pi (10)(14)\\SA=2\pi (\frac{100}{4})+140\pi\\SA=2\pi (25)+140\pi\\SA=50\pi+140\pi\\SA=190\pi[/tex]

Therefore, although this answer isn't one of the choices, the surface area of the cylinder is 190π.

I hope this helps!

Find the value of x.

Answers

Answer:

10

Step-by-step explanation:

7x+5 = 9x -15

5 = 2x -15

2x = 20

x = 10

What’s the value of x?

Answers

14 sorry if I’m wrong

Answer:

6*15 = 5(x+5)

90 = 5x + 25

65 = 5x

x = 13

Step-by-step explanation:

I've gone ahead and labeled some points.

There is a formula that says PA*PB = PC*PD, this is what you use.  If you would like me to show why this works I would be happy to.

So what we have is PA = 6, PB = 9+6 = 15, PC = 5 PD = 5+x so let;s writ ethe formula with these values

6*15 = 5(x+5)

90 = 5x + 25

65 = 5x

x = 13

EDIT: Here is the explanation for the formula

If you form triangles PCB and PAD you can find angle D and angle B are the same, because they are inscribed angles that intersect the same arc of the circle.  Also angle P is the same on both triangles since they are the same angle, so this means both triangles are similar.

This means DA is similar to BC, AP is similar to CP and PD is similar to PB. Similar sides means if you can multiply one side by a number to get to its similar side, then you can multiply all sides by that value to get all sides of that similar triangle.  

This also means if you divide one side by its similar side you get the scale value, so this means if you do it to two different sets of similar sides you get the same number

[tex]\frac{PA}{PC}=\frac{PD}{PB}\\PA*PB = PC*PD[/tex]

Solve the system of equations by graphing.
y = 2x + 5
y = -1/2x
Where do the two lines cross?

Answers

The answer is (-2,1) or x is -2 and y is 1. You just need to know how coordinate plane works

Fill in the table to convert the units of time from hours to minutes or minutes to hours.
Minutes Hours
60 1
300
4

Answers

Ok so first we need to under stand that 60 minutes is equivalent to 1 hour, by knowing this we should be able to answer the following. Our first box which needs to be filled in asking how many hours are in 300 minutes, well let’s figure this out. So we know that in 60 minutes it will be equivalent to one hours, so in order to find how many minutes are in 300 minutes we would divide 300 by 60 which give a us 5. Therefore causing the second box to me 5 hours. Our next and final box is asking how many hours are in four minutes well this one is a little harder than our previous one but I’ll help you through it. By following the same procedure as we did the previous question we are going to divide 4 by 60 and we know that dividing like so we are going to get a decimal but that’s ok it’s going to give us the answer we need to fill in the box. By dividing like so we should get a long decimal that look that this 0.066666666666667. I am going to simply this down to 0.0667. Causing my last box to be 0.667.
Summary:
second box: 5 hours
Third box: 0.0667 hours
Hope this helps!!!
Please tell me if I have made an error, I enjoy learning from my mistakes:)
Have a great rest of your day❤️

Sketch a graph of the function y = (x + 6)(x- 4) ​

Answers

Step-by-step explanation:

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jejejejeje did fr tk rje rjr rjr r

Find the area of the blue shaded figure.
25 mm
120 mm
I’m begging atp. Please help me

Answers

area of blue shaded figure = area of big circle minus small circle

radius of big circle = 60mm

area of big circle= πr² = check pic

PLEASE HELLPP!!!!! Don’t know what it is

Answers

Answer:

I think of having straight line

DE is a midsegment of AABC. Find the value of x.
A
х
D
B
E
6
-
X=
please HELP 30 points

Answers

14 i believe, if it’s a mid segment then 7 is half of x.

if ABC is similar to DEF, determine the measure of A

Answers

Answer:

the answer is 66°

Step-by-step explanation:

As it is given that triangle ABC is similar to triangle DEF so

< A = < D ( being corresponding angles of similar triangles)

3x + 18° = 4x + 2°

4x - 3x = 18° - 2°

x = 16°

So now

< A = 3 * 16° + 18° = 66°

Question 6
Find the slope of the line that passes through the pair of points.
(-3, 2), (7, 2)

Answers

Answer:

Slope = 0

Step-by-step explanation:

Given the pair of points: (-3,2) (7,2)

Slope formula: y2-y1/x2-x1

2-2/7-(-3) = 0/10

0/10 = 0

how long is the shorter ladder

Answers

I am just assuming here- but imma say 12 ft. Because the other one looks at least 40 ft.

Hope I don’t get this wrong xd

I NEED HELP WITH ALL, MUST SHOW WORK!!! will give brainliest to the correct one!!!

Answers

1. 20 squared + 48 squared = 2704
square root of 2704 is 52. Answer: 52 inches.

2. -18 squared + 82 squared = 6400
square root of 6400 is 80 Answer: 80 inches

Question in photo! answer asap! will give brainliest!

Answers

Answer:

Option B

Step-by-step explanation:

When you put option b in y intercept form, the slope is -3/2 which is the negative reciprocal of  2/3, making the lines perpendicular.

3x + 2y = -4

-3x           -3x

2y = -3x -4

/2       /2

y = -3/2 -2

Your mom is throwing a huge party for your graduation! Her total budget for the party is $1050. She must pay a fee of $400 to hold your party at Dave & Buster's. She is responsible for paying $50 for each guest so that they can eat and play. How many guests, g, can you invite to your graduation party?​

Answers

Step-by-step explanation:

She has 1050

400 of that is the DB fee

Now she has 650 dollars

650/50 per person is 13

She can have 13 people

10 - 6z = -104 *pls help me

Answers

X is equal to 19. Hoped this helped

Answer:

z=19

Step-by-step explanation:

5. Write an equation that models exponential decay.

Answers

Answer:

Step-by-step explanation:

y = ab^x where 0<b<1 for exponential decay

an example would be y = 3(1/7)^x

which inequality is true if p = 3.4​

Answers

i think it is p > 3.3

Two similar rectangles are shown. Which statement is true? A) The area of rectangle B is 1 3 the area of rectangle A. B) The area of rectangle B is 1 9 the area of rectangle A. C) The area of rectangle B is nine times the area of rectangle A. Eliminate D) The area of rectangle B is three times the area of rectangle A

Answers

Answer:

I think it is 19 I not really sure

Step-by-step explanation:

o work it out of my paper and I got 19

Answer: The answer to this math question about finding the statement is very true about 2 similar rectangles are being shown here below is B). B) The area of rectangle B is [tex]\frac{1}{9}[/tex] of the area of rectangle A.

Step-by-step explanation: I'm very sorry about that, but I don't have any step-by-step explanation to this math question about finding the statement is very true about 2 similar rectangles are shown here below, so anyways, I hope that my full short given answer without my given step-by-step explanation to your own math question about finding the statement is very true about 2 similar rectangles are being shown here below, please mark me as Brainliest, take care, always be safe, and have a great rest of the day and good night! :D

Sincerely,

Jason Ta,

The Ambitious of The Brainly And The Role of The TDSB And WHCI Student of The High School.

Item 5
Find the area of the circle. Round your answer to the nearest hundredth.



area: about
cm2

Answers

Here’s the link to the answe

:510 around th e cme3 cthulhu.com

9. What is the inverse of y = 10x -2?

Answers

Answer:

f(x)^-1=x-2/10

Step-by-step explanation:

some one help me with this the highlighted one is the problem

Answers

atomic proton number
atomic mass number
atomic symbol
periodic table
groups
8
periods
7
amphoteric line
transition metals
non-metals
other metals
bromine
dull
electricity
magnets

Find the solution of the system of equations.
10x+6y= 16
−10x+5y= 50

Answers

Answer:

( − 2 , 6 )

x = − 2

y = 6

Step-by-step explanation:

What is the value of X

Answers

Answer:

11=x

Step-by-step explanation:

since the lines are parallel the distances between each section of line is proportional to each other.

5/6=(x-1)/12

multiply both sides by 12

12(5/6)=(x-1)12/12

10=(x-1)

add 1 to both sides

10+1=x-1+1

11=x

I hope that helps :)

can I get help with my homework ​

Answers

1 = scale factor of 2 and x =3

The area of a rectangle is 35x - 20. Find the length and width of the triangle. (Hint: Factor completely) Write your answer as a product. Ex: 8(3x-2).

Answers

Answer should be 5(7x-4)
I factored out the greatest common factor which is 5.
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