If 2+√3/2-√3= a+b√3 Find a and b ​

Answers

Answer 1

Answer:

a = 7, b = 4

Step-by-step explanation:

Simplify the left side:

(2 + √3)/(2 - √3) = (2 + √3)(2 + √3)/(2 + √3)(2 - √3) =(4 + 4√3 + 3)/(4 - 3) =7 + 4√3

Compare with the right side:

a = 7, b = 4

Related Questions

Antony spends £244 on a plane ticket and €110 on airport tax. Using £1 = €1.12, what percentage of the total cost does Antony spend on airport tax? Give your answer rounded to 1 dp.

Answers

€110 = 110/1.12 = £98.2142857

(98.2132857 / 244) x 100 = 40.2517

Round to one dp :

40.3%

Watson and Alva each have the same total number of toy cars and trucks Watson has 4 boxes. Each of his boxes has 7 cars and 2 trucks. Alva
has 2 boxes. Each of his boxes has 11 cars and the same number of trucks
How many trucks are in each of Alva's boxes?

Answers

Answer:

Alva has 7 trucks in each box.

Explanation:

You need to determine the total number of toys Watson has. Watson has 4 (7+2) = 4(9) = 36 toys.

Set 36 equal to an expression for the number of toys Alva has. Using t for the number of trucks, 36 = 2 (11+t).

Then, solve the equation.

36 = 2(11+t) 36 = 22 + 2t 14 = 2t7 = t

So how many trucks are in each of Alva's boxes?

7 Trucks!

The number of trucks that Alva has is 7.

How many trucks does Alva have?

A linear function is a function that is made up of a single variable that is raised to the power of one.

The general form of a linear equation is:

y = mx + b

Where:

y = dependent variable b = constant m = independent variable

The first step is to determine the total number of toy cars and trucks that Watson has.

Total number of toy cars and trucks that Watson has = (4 x 7) + (4 x 2)

= 28 + 8 = 36

Since Watson and Alva have the same number of toy cars and trucks, it means that Alva would also have 36 toy cars and trucks.

The equation that represents the total number of toy cars and trucks that Alva has is:

(2 x 11) + (2 x t) = 36

22 + 2t = 36

36 - 22 = 2t

14 = 2t

t = 14 / 2

t= 7

To learn more about linear functions, please check: https://brainly.com/question/26434260

#SPJ3

answer question right or else

Answers

Answer:

60

Step-by-step explanation:

yes, it's a question

have a great day

the answer to your question is 60, i found this by taking 30/1 multiplied by 5/100

HELP SOMEBODY PLEASE I NEED IT NOW HURRY!!!​

Answers

Answer:

Rational square root

√144 - 12

√400 - 20

√ 100 - 10

√ 81 - 9

√ 169 - 13

irrational square root

√ 190 - 13 & 14

√ 250 - 15 & 16

√ 120 - 10 & 11

√ 160 - 12& 13

√ 320 - 17 & 18

Find x and y intercept 5x + 4y = 8

Answers

Hi!

The x-intercept is: x= 8/5

The y-intercept is: y= 2

Answer:

(8/5, 0)

Step-by-step explanation:

5x - 4(0) = 8

5x = 8

x = 8/5

You rotate triangle DEF with coordinates D(-2, 2), E (1,5), and F(4, -1) 90° counterclockwise about the origin.​

Answers

Answer:

70

Step-by-step explanation:

Rotating triangle DEF counterclockwise by 90° about the origin using the rule (x,y) becomes (-y,x) results in new vertices D'(-2, -2), E'(-5, 1), and F'(1, 4).

When rotating triangle DEF counter-clockwise by 90° about the origin using the rule D(x,y) becomes D'(-y,x), the new coordinates are as follows:

⇒ Vertex D(-2, 2) becomes D'(-2, -2),

Vertex E(1, 5) becomes E'(-5, 1),

⇒ Vertex F(4, -1) becomes F'(1, 4),

This rule swaps the "x" and "y" coordinates while negating one of them, effectively rotating the points 90° counterclockwise around the origin.

Therefore, the new vertices are D'(-2, -2), E'(-5, 1), and F'(1, 4).

Learn more about Rotation here

https://brainly.com/question/28832360

#SPJ3

Jane, Andre, and Maria pick apples. Andre picks three times as many pounds as Maria. Jane picks two times as many pounds as Andre. The total weight of the apples is 840 pounds. How many pounds of apples does Andre pick?

Answers

Answer:

Andre picks 252 lbs of apples

Step-by-step explanation:

Maria picks 84

84 x 3 is 252

252 + 252(2) + 84 = 840

x^2-6x+13 step by step to vertex form

Answers

What’s the 3 options

Which expressions are equivalent to the one below? Check all that apply.
5 to the 3rd power times 5x

Answers

C and B sorry if I responded late I looked it up on my answer sheet

eduardo took a survey to find out how many students in his school have a pet, there are 1,000 students in the school. 20% of them have a pet how many students in eduardo's school have a pet. help

Answers

Answer:

200

Step-by-step explanation:

dude ur in college how do you not know this?

Given matrices A and B shown below, find (−4)A+(−9)B.

Answers

see the answer in the attached picture.

calculate the loan and interest to be paid back if a man borrows 150,000 Naira for 10 years at 5% simple interest

Answers

Answer:

41550

Step-by-step explanation:

Need answer please !!

Answers

Answer:

Step-by-step explanation:

Least common denominator is 10

there are 10/10 portions in the whole circle

1/2 = 5/10

2/5 = 4/10

10/10 - 5/10 - 4/10 = 1/10

Pls help can’t figure it out

Answers

X = 30
Y = 20
Let me know if you want me to show my work (:

Graph the line that represents the equation 3y = 2x + 9.

Please show a photo!! I need answer ASAP

Answers

These are the coordinates and a picture of the graph is below (0,3) (3,5)

please help.... fast​

Answers

Answer:

HL

Step-by-step explanation:

It tells you the triangle is a right triangle and it tells you that the hypotenuse of both triangles is congruent.

I'm confident that this is the answer.

Reading Readiness, Inc. has provided you its list of accounts and balances as of January 31. The Controller has asked you to prepare an Income Statement for the month ended January 31. Use the information included in the Excel Simulation and the Excel functions described below to complete the task.

Answers

The preparation of Reading Readiness, Inc.'s multi-step Income Statement for the month ended January 31 is as follows:

Reading Readiness, Inc.

Income Statement

For the month ended January 31

Sales Revenue              $175,500

Less:

Sales Returns                      4,700

Sales Discounts                  6,000

Net Sales                     $164,800

Cost of Goods Sold         67,700

Gross profit                    $97,100

Expenses:

Salaries and Wages     $25,900

Depreciation Expense    13,800

Rent Expense                24,000

Operating expenses   $63,700

Operating income     $33,400

Interest Expense              1,600

Income before tax     $31,800

Income tax expense       7,700

Net income                 $24,100

Data and Calculation:

Gross profit percentage = 59% ($97,100/$164,800 x 100)

Thus, the net income after deducting the income tax expense is $24,100.

Learn more: https://brainly.com/question/24257787

4/8 x 4/8 i dont care if you answer want to be fwen :)​

Answers

Answer:

1/4

Step-by-step explanation:

Answer:

1/4

Step-by-step explanation:

4/8×4/8

16/64

Identify the common difference of the sequence: -8, -1, 6, 13,...

Please do not post suggestions to go to random sites for the answers. I'm on a timed test. Don't waste my time.

A. -6
B. -7
C. 7
D. 6​

Answers

Answer:

c positive seven because to find the common difference we have subtract -1from-8 that's I (T2-T2)

Which property of multiplication is shown? 3 * (5 * 7) = (3 * 5) * 7

Answers

Answer:

the associative property

Answer:

It is the associative property of multiplication

Step-by-step explanation:

It is generally expressed as

(ab)c=a(bc)

3*(5*7)=(3*5)*7

105=105

How do you close a revenue account?

A)

Credit Capital; debit Revenue

B)

Debit Capital; credit Revenue

C)

Debit Income Summary; credit Revenue

D)

Credit Income Summary; debit Revenue

Answers

Answer:

D)

Credit Income Summary; debit Revenue

[tex]x^{2} +2x-24[/tex]

Answers

( X - 4 ) ( x + 6 ) there you go

NEED ANSWER FAST FOR BRAINLIEST (MUST GIVE EXPLANATION)

Louise's filling to 2 gallon buckets with water the equation Y equals 0.4 X models the number of gallons of water in the first bucket after X minutes this graph shows the number of gallons in the second bucket after X minutes which statement is true
A- The second bucket will be completely filled five minutes before the first bucket

B-The first book it will be completely filled five minutes before the second bucket

C-The second book it will be completely filled 11 minutes before the first bucket

D-The first bucket will be completely filled 11 minutes before the second bucket

Answers

Let's see

y=0.4x

When y becomes 2 right?

[tex]\\ \sf\longmapsto 0.4x=2[/tex]

[tex]\\ \sf\longmapsto x=2/0.4[/tex]

[tex]\\ \sf\longmapsto x=5mins[/tex]

Option B

The question is attached on the picture
thank you...

Which of the following rational algebraic equation is transformable to a quadratic equation?​

Answers

Answer:

Option A

Step-by-step explanation:

Possible options are A and B as the other two have no variables in their denominators and the numerators are of degree 1.

Now, option A, it has two different denominators involving the variable s. If you multiply all the terms by the product of the two  8s(s + 2), then you get a quadratic equation.

The option B. If you perform same operation, multiply all the terms by m(m + 1) this will result in degree 3 polynomial, which is a cubic equation but not the quadratic.

So the only option is A

Please help!

Triangle ABC has angle measures as shown. Show work. Complete sentence.




(a) What is the value of x?








(b) What is the measure of angle CBA?




(c) What is the measure of angle CAB?




(d) When these 3 interior angles of a triangle are added together, what does it equal?

Answers

9514 1404 393

Answer:

  (a) x = 22

  (b) 46°

  (c) 44°

  (d) 180°

Step-by-step explanation:

Because the sum of the interior angles of a triangle is 180°, we know that the sum of the acute angles in a right triangle is 90°.

(a)

The sum of the marked acute angles is 90°.

  2x +(3x -20) = 90

  5x = 110 . . . . . . . . . . add 20, collect terms

  x = 22 . . . . . . . . . divide by 5

__

(b)

∠CBA = (3x -20)° = (3·22 -20)° = 46°

__

(c)

∠CAB = 2x° = 2(22)° = 44°

__

(d)

The sum of a triangle's interior angles is 180°.

Nick’s house is between his school and the library, which are one mile apart on the same street. A mile is 5280 feet. After school, Nick walks 3195 feet to his house. How many more feet he need to walk to get to the library?

Answers

Nick's needs to walk 2,085 feet more to get to the library.

Given:

1 mile = 5,280 feet

Distance from Nick's school to his house = 3195 feet

Recall,

Nick’s house is between his school and the library, which is one mile apart

So,

Distance to work to the library from Nick's house = 1 mile - Distance from Nick's school to his house

= 5,280 feet - 3,195 feet

= 2,085 feet

Therefore,

Nick's needs to walk 2,085 feet more to get to the library.

Read more:

https://brainly.com/question/20365394

Help me with this please

Answers

Answer:

178 maybe tell its right or wronv

An observable characteristic of abnormal body
functioning that medical professionals can
visualize or detect is called what?
a symptom
a sign
a measure
inflammation

Answers

Answer:

a sign

Step-by-step explanation:

Winston ate 180 hot dogs in 9 hours. At that rate, how many hot dogs
would he eat in 12 minutes?

Answers

Pls pls give me ur the earth code and wI

Rose and Liz both belong to a club of 20 members. A committee of 4 is to be selected at
random from the 20 members. Find the probability that both Rose and Liz will be
selected

Answers

Using the hypergeometric distribution, it is found that there is a 0.0316 = 3.16% probability that both Rose and Liz will be  selected.

Hypergeometric distribution:

[tex]P(X = x) = h(x,N,n,k) = \frac{C_{k,x}C_{N-k,n-x}}{C_{N,n}}[/tex]

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

The parameters are:

x is the number of successes. N is the size of the population. n is the size of the sample. k is the total number of desired outcomes.

In this problem:

Club has 20 members, hence [tex]N = 20[/tex]The committee has 4 members, hence [tex]n = 4[/tex]Rose and Liz are 2 of the members, hence [tex]k = 2[/tex]

The probability that both are selected is P(X = 2), hence:

[tex]P(X = x) = h(x,N,n,k) = \frac{C_{k,x}C_{N-k,n-x}}{C_{N,n}}[/tex]

[tex]P(X = 2) = h(2,20,4,2) = \frac{C_{2,2}C_{18,2}}{C_{20,4}} = 0.0316[/tex]

0.0316 = 3.16% probability that both Rose and Liz will be  selected.

A similar problem is given at https://brainly.com/question/24826394

Other Questions
If LM = 22 and MN = 15 find LN OAnalysis (6 marks)List the characteristics that you think must be in a seed so it can carried by windfrom place to a placeoOHelp? 13. Which muscle allows you to flex your big toe? Limiting expression of personal opinions or beliefs is a proper function on government True False ? 15. The first part of an organism's scientific name is the Answer for points ig Ill thank it La casa tiene tres _____.? (A.) garajes(B.) tapetes (C.) patios(D.) pasillos major help....................... When a whole species dies all at once it is called a mass extinction. True/False does sympathetic nervous system increase body temperature comment utiliser la telecommande de votre tv pour utiliser votre mag Excerpt from "Frankenstein" by Mary Shelley no links Which of the following statement about the RICE system is TRUE? Ice pack can be applied directly to the skin. Ice packs should be applied for 20 minutes every 2 hours. Elevating the affected limb eases the pain. The RICE system should be followed for at least 1 week. As you read this excerpt from Black Beauty, think about how the novels point of view (that of a horse) affects its plot.What effect does point of view have on the plot of Black Beauty? - It eliminates the need for any major plot twists. - It prevents readers from guessing how events affect the characters. It limits the kinds of events that can be described. - It makes the events of the plot impossible to follow. >Don't judge a book by its cover' is an example of aPlot>Setting>Theme>Conflict Why did Dionysus agree to take back his gift? What is the slope of this line?Enter your answer as a fraction, formatted like this: 42/53Or, if the slope is undefined, enter a lowercase letter "u," like this: u Which of the following correctly orders events during mitosis?a) Microtubules organize the chromosomes. The nuclear membrane dissolves. The mitotic spindle attaches to chromosomes.b) The nuclear membrane dissolves. Microtubules organize the chromosomes. The mitotic spindle attaches to chromosomes.c) The nuclear membrane dissolves. The mitotic spindle attaches to chromosomes. Microtubules organize the chromosomes.d) The mitotic spindle attaches to chromosomes. Microtubules organize the chromosomes. The nuclear membrane dissolves. What is the sum to 5(3.4k7)+(3k+21) PLEASE HELP!!!!! You are given an isosceles trapezoid ABCD with median XY. Complete the following.m