Mathematics High School

In this problem a,b,c and d are nonzero integers. If a/b is added to x, the sum is c/d. Which statement can be used to prove that x must be a rational number.

A= x=cb-ad/bd B= x=cb+ad/bd C= x=c-a/d-b D= x= c+a/d-b

Answers

Answer 1

Answer:

x=cb-ad/bd

Step-by-step explanation:

Answer 2

The statement which can be used to prove that x must be a rational number is x = (cb - ad) / bd

Prove of rational number

Given nonzero integers:

a, b, c, d

If a/b is added to x

a/b + x

the sum is c/d

a/b + x = c/d

prove x to be a rational number

a/b + x = c/d

subtract a/b from both sides

a/b + x - a/b = c/d - a/b

x = c/d - a/b

x = (cb - ad) / bd

Therefore, the statement which can be used to prove that x must be a rational number is x = (cb - ad) / bd

Learn more about rational number:

https://brainly.com/question/12088221

Related Questions

******WORTH 50 POINTS****WILL MARK BRAINLIEST****PLEASE ANSWER ALL QUESTIONS***
A Drama Club is planning a grand opening musical for the new auditorium! It can hold up to 1000 people. They plan on charging $6 for a student ticket (x) and $10 for an adult ticket (y). If they need to make $3500 to cover all of their expenses, answer the following:

a) Write an inequality to represent the number of tickets

b) Write an inequality to represent the amount of money brought in

c) Give ONE combination of student and adult ticket sales that would satisfy both inequalities

d) Give ONE combination of student and adult ticket sales that would satisfy ONE, but NOT both inequalities

Answers

this is difficult lol im scared to attempt this so i wont

Solve the question in the picture below.

Answers

The answer is b. Have a good day ;)
B. They Y intercept is where the line crosses the y axis (4) and the slope is rise/run (so down 2 over 1, which is -2/1 = -2)

I need help plz answer!!!

Answers

Answer:

No.

Step-by-step explanation:

Answer:

No

Step-by-step explanation:

If you graph the equations, then you see that (3,8) is not the solution.

Find the constant of proportionality (k). Using the value for k, enter an equation in the form of y = kx.

Answers

Answer:

k = 4, y = 4x

Step-by-step explanation:

From the question, we get the ratio of :

x : y = 1 : 4

Two variables are proportional to each other if their ration is constant. The constant value is denoted by 'k' and is called as constant of proportionality.

In the question, the two variables are :

x = glasses of lemonade

y = lemons used

From the question, the ratio of y is to x is given by :

y : x is   24 : 6 = 4 : 1     or   24/6 = 4

            32 : 8 = 4 : 1     or   32/8 = 4

            28 : 7 = 4 : 1     or   28/7 = 4

             8 : 2 = 4 : 1      or   8/2 = 4

            16 : 4 = 4 : 1     or   16/4 = 4

So here the constant is 4 . Therefore, the constant of proportionality, k is 4.

So we can write the equation as :

y = kx

or y = 4x

What is the answer to 10.50 X 8.5 pls help :\

Answers

Answer:

89.25

Step-by-step explanation:

If you do 10.50

              x 8.5 you get 89.25.

Answer:

89.25

Step-by-step explanation:

10.5 x 8.5 on a calculator.

What would be different if you started your day with a feeling of being in control?

Answers

it would make me feel like i’m somebody and i have power(for good use)

Answer:

I would feel like I have a lot of power and I would use that to try to help people.

Help please! This is worth 50 points it'll mean a lot!

Answers

between 20 and 5000 characters

a) 12, 10, 7,3,
Rule:
b) 1,3,9, 27,
Rule:
I
c) 4, 19, 34, 49
Rule:

Answers

A the rule would be -1 times X
B the rule would be x3
C the rule would be +15

A magazine has 96 pages. There are advertisements on 75% of the pages. How many of the magazine’s pages do not have advertisements

Answers

To get this you multiply 96 x .75 which gives you 72. 72 is the amount of advertising pages so subtract 96-72 which gives 24. So it’s 24 pages that are not advertising

Jed wants to earn 25% annual net income on his $50,000 cash investment in property his annual expense of owning the property are $9600 what monthly rent must jed charge

Answers

Answer: $1,842

Step-by-step explanation:

John wants to earn 25% of his investment of $50,000 which is:

= 25% * 50,000

= $12,500

He has expenses of $9,600 yearly so the rent he should charge per year in order to make his 25% requirement as income is:

= Expenses + Return

= 9,600 + 12,500

= $22,100

Rent per month is:

= 22,100 / 12

= $1,842

question 8 thank youuu

Answers

Step-by-step explanation:

hope this help have a great day

A.2n+ 4= D
D is Dai by the way

B.
D-8 = n+8
(2n + 4)- 8 = n + 8
2n - 4 = n + 8
2n - n = 8 + 4
n = 12

please please please help me ​

Answers

Answer:

Option B

Step-by-step explanation:

Given function is,

p(x) = x²- (2√2)x + 1

We have to find the value of p(2√2).

By substituting the value x = 2√2

p(2√2) = (2√2)² - (2√2)(2√2) + 1

           = 8 - (2√2)² + 1

           = 9 - 8

           = 1

Therefore, Option B will be the correct option.

Which expression is not equal to 1?

sin θ csc θ
cos θ sec θ
tan θ cot θ
sin θ cos θ

Answers

Answer:

sin θcos θ

hope it is helpful to you

Answer:

sin A cos A

Step-by-step explanation:

[ I don't know to type angle theta here so assume A as theta]

As , sin A= p/ h

cos A= b/ h

so,

sinA cosA = p/ h × b/h

= pb/ h^2 ( which is not equal to 1 )

Tip; you can easily verify other relations expressing trigonometric ratios in terms of p,b & h and further simplifying..

FINDING THE AREA OF A NONRIGHT TRIANGLE USING THE BOX METHOD.

Answers

Answer:

Step-by-step explanation:

thank you so much. thank you.

WILL GIVE BRAINLIEST TO BEST ANSWER PLEASE HELP

Answers

Answer A


Formula I=p r t

COPPER:
($1500)(0.07)(3)
=315
TRINITY
($1800)(0.06)(3)
=324

b)
(-32)+(+17)+(+32)​

Answers

it’s 17

have a wonderful day

Answer:

17

Step-by-step explanation:

-32 and 32 get cancel

and the answer is 17

Solving the following system using substitution method.
y=3x-6
y=x-10

Answers

Answer:

x = -2, y = -12

Step-by-step explanation:

x - 10 = 3x - 6

-2x = 4

x = -2

y = -2 - 10

y = -12

A tower has lost contact with a GPS satellite. The satellite is at 4500 meters over the Earth at a location 2000 meters from the tower. At what angle should the tower point and scan to make contact again? Note the height of the tower is not included. Round answers to the nearest whole degree.The angle of elevation from the top of the tower to the satellite is?

Answers

Answer:

66°

Step-by-step explanation:

It is given that :

Distance of the satellite from the tower = 2000 m

Height of the satellite above the tower = 4500 m

Therefore the angle of elevation can be found out by :

[tex]$\tan \theta = \frac{4500}{2000}$[/tex]

[tex]$\tan \theta = \frac{9}{4}$[/tex]

[tex]$\tan \theta = 2.25$[/tex]

[tex]$\theta = \tan^{-1}(2.25)$[/tex]

  [tex]$= 66 ^\circ$[/tex]

Therefore the tower can make contact with GPS satellite when it pointed at 66° angle.

Help I'll give Brainly Est

Answers

225 I think not sure

Given ABC, what is the value of x?

NEED HELP QUICK!!

Answers

Answer:

x = 49

Step-by-step explanation:

AD is an angle bisector and divides the opposite side into segments that are proportional to the other 2 sides , that is

[tex]\frac{28}{x}[/tex] = [tex]\frac{8}{14}[/tex] ( cross- multiply )

8x = 392 ( divide both sides by 8 )

x = 49

the width of a rectangle is 8 feet and the diagnal length of the rectangle is 13 feet which measurement is closest to the length of this rectangle in feet

Answers

Answer:

Well the whole answer is 10.246950 smth smth but I don’t have the multiple choices so your gonna have to round yourself

Step-by-step explanation:

Okay so you have a weigh of 8 and a diagonal of 13.

If you look, theres a triangle there. One side has 8 and the diagonal that was cut forms a 13. So we have a leg and a hypotnuse. To find the other leg (length) just follow the Pythagorean theroum and solve for b or a.

Pythagorean theroum: a^2+b^2=c^2

Now subsitute c for 13 since its the hypotnuse and a or b as 8 but only one.

In this case I’m substituting a for 8.

8^2+b^2=13^2

Solve the squares

64+b^2= 169

Isolate the b

b^2=105

Now square root 105

√105 will give the answer above on a normal calculator but if you have to round, I don’t know what place but you can round.

Write the equation of the line passing through point (-2 - 2) with a slope of -1
Substitute into y = mx + b and for b

Answers

I think that y=-1x-4 is the answer

Store A sells a watch for $50 and offers a 5% discount. Store B sells the same watch for $60 and offers a 20% discount. The sales tax is 6% for both . After discounts and taxes are applied, from which store should you buy the watch and why?

Answers

Store A
50*5%=2.5
50-2.5=47.5
47.5+(6%*47.5)=$50.35
Store B
20%*60=12
60-12=48
48+(6%*48)=$50.88
I would but the watch from store A because it would be 53 cents cheaper.

how do i solve this question

Answers

Answer:

18.18

Step-by-step explanation:

total sum of angle of quadrilateral is 360

70+60+ 7x-4+4x-3=360

160-7 +11x =360

153 +11x =360

11x=360-153

x=207/11

x=18.18

Solve -4x + 6(x + 2) = 20.

Answers

Answer:

4

Step-by-step explanation:

-4x +6x +12 = 20

2x + 12 = 20

2x = 8

x = 4

Answer:

X=4

Step-by-step explanation:

-4x+6x+12=29

2x=8

x=4

Good luck .

Can you help me with my work

Answers

Answer:

all u have to do is count how many 2 there are then put that in and do the same for the 8

Step-by-step explanation:

Answer:

[tex]2^{6} *8^{4}[/tex]

Step-by-step explanation:

Proof! Please help <3

Answers

Look how they connect the triangles

Pls help me, and do not send links. Thanks

Answers

i uploaded a vid on this here

https://www.you tube.com/watch?v=dQw4w9WgXcQ

An item costs $370 before tax, and the sales tax is $14.80.
Find the sales tax rate. Write your answer as a percentage.


Answers

Answer:

4%

Step-by-step explanation:

370.00x4%=$14.80

how many more years is the avearge life span of a alligator then a tiger

Answers

Answer:

69 years

Step-by-step explanation:

Oh, hell yeah

Answer: 69 more years

Step-by-step explanation:

Other Questions
A spinner is shown below. What is the probability of the spinnernot landing on a striped section? Rewrite the expression in the form k*x^n(16/x^3)^1/4 PLEASE HELP!! I WILL GIVE BRAINLIEST IF YOU SHOW YOUR WORK! A student titrated 50 cm of sulphuric acid (H2SO4)of an unknown concentrationin a flask with sodium hydroxide (NaOH).The acid required 30 cm3 of 0.500 mol/dm3 NaOH to reach the end pointH2SO4(aq)+ 2NaOH(aq)Na2SO4(aq) + 2H2O()Calculate the concentration the acid.Concentration =mol/dm3 Even in ancient times, there was a fine line between the military and the security guard. What does the idiom, fine line, refer to in this context? (Check all that apply.)fine line means that security and military need to be compared to be understoodfine line means something ironicfine line can just as easily be a thin linea clear line between military and security in your own words define inalienable and give an example Remplace l'expression en caractre gras (=bold) par la forme approprie du pronom interrogatif "lequel":De quels hommes parles-tu?a. Duquelb. De lesquelsc. Auxquelsd. Desquels Solve this easy question that I don't understand A nature park has two ticket plans. With one plan, you pay a $24 yearly membership fee plus $8for each visit. The other plan has no membership fee, but you pay $14 for each visit. Isaac is onthe first ticket plan and Maddie is on the second ticket plan. After how many visits will they eachhave paid the same amountF 5G6H4J 3 What group of people would have wanted the constitution to include a list of rights? Use the net to find the surface area of the rectangular prism True or False the further away an object is the weaker the gravitational pull becomes Identify a product you use every day. Assume you are the marketer of the product and want to convey the ways your product differs from competing products in the marketplace. Create a differentiation strategy to promote your product and create a competitive advantage Which of the following is the best explanation of why an ionic compound formula is a ratio of atomsThe sharing of electrons is always in a simple ratioThe number of atoms in an ionic compound change... there can be several possible combinationsWhen ions form they are attracted to each other and "cxmp" together to form a crystallonic compounds conduct electricity when dissolved in water. Can someone help me with this pls The price of a DVD is $24.00 plus 8.25% sales tax. What is the sales tax on the DVD in dollars and cents?HELP Kevin wants to hike the Pacific Crest Trail, which is 2,653 miles long. If Kevin wants tofinish the hike in 7 months, how many miles should he hike each month?miles Choisis la meilleure rponse pour complter la phrase suivante:Ma sur ____ demain.ne se maquillera pasne se maquillra pasne se maquilla pasne se maquille pas Help me out here plz Describe the spatial pattern of orange cultivation in florida.