prove that there are real numbers a and b such that square root of a + square root of b equals square root of a + b

Answers

Answer 1

Answer:

Lets firts mention that the rule presented in the question does not apply for all real numbers

But, we can see that in some cases it might be true.

Let

a = 1

b = 0

√1 + √0  = 1 + 0 = 1

Likewise,

√(1 + 0)  =  √(1) = 1

And we see that the result is the same.


Related Questions

There are 1 1/2 pizzas left.One-third of pizza left is plain cheese.How much cheese pizza is left?

Answers

Answer:

About four of the pizzas are plain cheese, 3.83 pizzas to be exact.

Step-by-step explanation:

1/3 of 11.5 is 3.83

Four angles are formed by the intersection of the diagonals of this quadrilateral. Which statement is NOT true?


A) ∠1 and ∠2 are adjacent.


B) m ∠2 = 180° – 120°


C) m ∠1 = 120° because ∠1 and the 120° angle are vertical angles.


D) m ∠1 = m ∠2

Answers

Answer:

no picture

Step-by-step explanation:

(D): m ∠1 = m ∠2

I got it correct, trust me.

A cone has a diameter of 23 inches and a height of 19.7 inches. Select all of the expressions that could be used to find the volume of the cone in cubic inches? Use 3.14

Answers

Answer:

2727

Step-by-step explanation:

The formula for finding the volume of a cone is

1/3πr²h

The radius would be 11.5 because, radius equals the diameter divided by two.

So, first you would plug your numbers into the equation

1/3(π)(11.5)²(19.7)

*use 3.14 for pi

Then multiply.

V = 2726.9 (2727 if you round to the nearest whole number)

Where’s The Expressions?

A person can read 48 pages in 5/4 of an hour. How many pages can they read in one hour

Answers

Answer:

38.4 pages

Step-by-step explanation:

5/4 = 1.25

Rate =  pages / Time

Time = 1.25 hours

Pages = 48

Rate = 48/1.25

Rate = 38.4    

the graphs below have the same shape. What is the equation of the blue graph?

Answers

let
y=g(x)
we put value of x=-3 in different equation given above the original function should give 1 output(from the graph)
it is only (C) which gives 1.
Answer:

Option: C is the correct answer.

The equation of the blue graph i.e. function G(x) is:

               C.  [tex]G(x)=(x+3)^2+1[/tex]

Step-by-step explanation:

We are given a parent function F(x) as:

                      [tex]F(x)=x^2[/tex]

Now after looking at the graph of the transformed function G(x) we see that the graph of G(x) is obtained by shifting the graph of F(x) 3 units to the left and  1 units upward.

Hence, the equation of the transformed function G(x) is given by:

                           [tex]G(x)=(x+3)^2+1[/tex]

Can someone please help ASAP???

Answers

Answer:

y = -5

Step-by-step explanation:

To solve this, we simply plug in 4 into x and then solve for y. We have:

[tex]-3x+9y=-57\\[/tex]

Now we put 4 into x and do some algebra and solve for the value of y:

[tex]-3x+9y=-57\\-3(4)+9y=-57\\-12+9y=-57\\9y=-57+12\\9y=-45\\y=\frac{-45}{9}\\y=-5[/tex]

So y = -5

What is the product of 35.263 and 0.29

Answers

The product of 35.263 multiplied by 0.29 is 10.22627 or approximately 10.2

Final answer:

In mathematics, the 'product' is the result you get from multiplying numbers together. The product of 35.263 and 0.29 is calculated by multiplying the two numbers together, resulting in 10.22627.

Explanation:

The product of 35.263 and 0.29 can be found by simply multiplying these two numbers together. In mathematics, the term 'product' refers to the result obtained by multiplying two or more numbers together. So, to find the product of 35.263 and 0.29, you just need to multiply these two numbers:

35.263 * 0.29 = 10.22627

Therefore, the product of 35.263 and 0.29 is 10.22627.

Learn more about Product of Multiplication here:

https://brainly.com/question/31670943

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An office has an area of 120 meters squared and it is 12 meters wide. Write an equation to represent the area.

Answers

12x = 120

If you need to find the length, it is 10 meters.



I will use x to represent the length of the room, since the letter l shows up like an I or a 1.

The simple equation is 12x = 120, since length times width equals area.

If you want to solve for the length, then divide both sides of the equation by 12. This leaves you with x = 10. So, the length of the room is 10 meters.



Please consider marking this answer as Brainliest to help me advance.

Two angles whose sum is 90 degrees are called _____

Answers

complementary angles are two angles whose sum is 90 degrees

Answer:

it is called a right angle

Step-by-step explanation:

solve the equation
-84= 6(p-8)​

Answers

Answer:

p=-6

Step-by-step explanation:

-84/6=p-8

-14=p-8

p=-6

Find the lowest value of the data this box -and-whisker ploy represents 12,1315,16

Answers

Answer:

12

Step-by-step explanation:

The lowest value is indicated by the dot at the end of the left whisker

That is the lowest value = 12

Final answer:

The lowest value in a box-and-whisker plot is the minimum of the dataset. For the given data set, the lowest value, which is the minimum, is 10.

Explanation:

The student is asking us to find the lowest value represented in a box-and-whisker plot. A box-and-whisker plot is a graphical representation of a five-number summary of a dataset: the minimum, first quartile (Q1), median (Q2), third quartile (Q3), and the maximum. The lowest value in a box-and-whisker plot is the minimum of the dataset.

To graph a box-and-whisker plot for the given data values, you would first need to arrange the data in ascending order. Then, find the minimum, Q1, median, Q3, and the maximum. The smallest number, which is placed at the leftmost part of the plot, is the minimum, also known as the lowest value of the dataset. For the data set provided (10, 10, 10, 15, 35, 75, 90, 95, 100, 175, 420, 490, 515, 515, 790), the lowest value is 10.

Which table shows a proportional relationship between X and y

Answers

Answer:

B

Step-by-step explanation:

all of the numbers times three equals the number across from it.

Hope this helps!


Solve the equation.

4p + 25 = 6(p – 3) – 3(4 – 3p)

Answers

Answer:

p = 5

Step-by-step explanation:

first you need to distibute into the parenthesis's -

4p + 25 = 6(p-3) -3(4-3p)

4p +25 = 6p -18 - 12 + 9p

4p + 25 = 15p - 30

-4p            -4p

25 = 11p - 30

+30       +30

55 = 11p

/11     /11

5 = p

hope this helps!!

4p+25=6(p-3)-3(4-3p)=5

Which equation can be used to find what percent 14 is of 125?

A..
125 = 14p

b.
14 = 125p

c.
14p = 125p

d.
125(14) = p

Answers

Answer:

B

Step-by-step explanation:

This is how I am confirming the answer:

14/125 = 0.112

125(0.112) = 14

Answer:

B. 125P=14 is the Answer

Step-by-step explanation:

1) When it says what percent 14 is of 125( what percent of 125 gives you 14)

Algebraically It's like this

125p=14

2) just solve for p

P=14/125 ( 125 is divided on both sides)

P= 0.112

3) plug in 0.112 for P

125 x 0.112 = 14

Hopes this helps you !

What does this mean I am really stuck please help me

Answers

The ratio is how much something has, comparative to another thing.

So, for every 10 apples, there are 4 oranges (first blank). Therefore, if there is half, five, of the apples, there are two (second blank), half of four, oranges. And, if the number of oranges tripled (12), there will be triple apples, which is 30 (third blank).

Answer: 10:4, 5:8, 1:12

Step-by-step explanation:

So for apples it goes my 10 then to 5 right? So the next one must be 1

For orange the first number they gave u is 4 and the 3rd number is 12. If u look in the multiplication table it goes like 4,8,12, ect.

Mr. Stanford’s greenhouse has the dimensions shown. The volume of the greenhouse is 90 cubic yards. Find the missing dimension of the greenhouse.

Answers

Answer:

[tex]h=10\ yd[/tex]

Step-by-step explanation:

we know that

The volume of the triangular prism of the figure is equal to

[tex]V=Bh[/tex]

where

B is the area of the triangular base

h is the height of the triangular prism

Find the value of B

[tex]B=\frac{1}{2}(6)(3)=9\ yd^{2}[/tex]

we have that

[tex]V=90\ yd^{3}[/tex]

substitute the values and solve for h

[tex]90=9h[/tex]

[tex]h=90/9=10\ yd[/tex]

Answer:

B

Step-by-step explanation:

A construction worker is building a wall. The wall is
20

yd
long. He needs to place a stud every
16

in
. The first stud has already been placed at one end of the wall. How many additional studs are needed, if the last stud will be placed at the other end of the wall? First fill in the blanks on the left side using the ratios shown.

Answers

I believe it is 45 studs to the end of the wall

Answer:

Step-by-step explanation:

First, convert 20 yds to 60 ft. and then from 60 ft to 720 in.

Use the formula for the nth term of an arithmetic sequence:

l = a + (n-1)d:

Here l = 720 ft, and a = 0.  The common difference, d, is 16 in.  Our task is to determine how many studs are needed.

Substituting the knowns, we get 720 = 0 + (n - 1)(16), which simplifies to:

720 = (n-1)(16).

Divide both sides by 16 to isolate (n-1):  45 = n - 1.

Adding 1 to both sides results in 46 = n.

46 studs total are needed; if the worker has already placed the first stud, then 45 additional studs are needed.

Which of the following statements is true?

A. Pi = 22/7
B. Pi = 355/13
C. Pi is the ratio of a circles circumference to its diameter
D. Pi is the ratio to a circle diameter to its circumference
E. Pi is a terminating recurring decimal

Answers

A. Pi= 22/7 =3.1415....

C. Pi is the ratio to a circles circumference to its diameter

(Area formula I used is the image I provided)


Determine the area of each of the following polygons using the area formula you created in part d.



Polygon Area

regular pentagon with apothem of approximately 9 inches and side length of 13 inches

regular octagon with apothem of approximately 5 centimeters and side length of 4 centimeters

regular hexagon with apothem of approximately 6 feet and side length of 7 feet

Answers

Answer:

1. The area of regular pentagon = 292.5 inches²

2. The area of the regular octagon = 80 cm²

3. The area of the regular hexagon = 126 feet²

Step-by-step explanation:

∵ The area of any regular polygon = 1/2 × perimeter × apothem

1. Regular pentagon

∵ Regular pentagon has 5 equal sides

∵ The perimeter of the regular pentagon = 5 × side length

∵ S = 13 inches

∴ P = 13 × 5 = 65 inches

∵ apothem = 9 inches

∴ A = 1/2 × 65 × 9 = 292.5 inches²

2. Regular octagon

∵ Regular octagon has 8 equal sides

∵ The perimeter of the regular octagon = 8 × side length

∵ S = 4 cm

∴ P = 4 × 8 = 32 cm

∵ apothem = 5 cm

∴ A = 1/2 × 32 × 5 = 80 cm²

3. Regular hexagon

∵ Regular hexagon has 6 equal sides

∵ The perimeter of the regular hexagon = 6 × side length

∵ S = 7 feet

∴ P = 7 × 6 = 42 feet

∵ apothem = 6 feet

∴ A = 1/2 × 42 × 6 = 126 feet²

   

Alicia´s gross monthly pay is 1,700. Alicia pays 1.25% of her monthly salary for Medicare. how much dose she pay

Answers

Answer:

$21.25

Step-by-step explanation:

1700 x 1.25% = 1700 x 0.0125 = 21.25

So Alicia's paying $21.25 of her monthly salary to Medicare.

Answer:

$21.25

Step-by-step explanation:

If Alicia´s gross monthly pay is 1,700 and she pays 1.25% of her monthly salary for Medicare, she would pay $21.25.

In order to find this, you must multiply the gross monthly pay by the percent.

1,700 x 1.25 = 21.25

What is the sum of the geometric series ?

Answers

Replace t with 1 through 4 and solve then add them together:

6^(1-1) = 6^0 = 1

6^(2-1) = 6^1 = 6

6^(3-1) = 6^2 = 36

6^(4-1) = 6^3 = 216

Sum = 1 + 6 + 36 +216 = 259

Answer:  The required sum is 259.

Step-by-step explanation:  We are given to find the sum of the following geometric series :

[tex]\sum_{i=1}^{4}6^{i-1}.[/tex]

The given geometric series can be written as :

[tex]0+6+6^2+6^3.[/tex]

We know that

the sum of a geometric series up to n terms with first term a and common ration r is given by

[tex]S=\dfrac{a(r^n-1)}{r-1}.[/tex]

in the given series, we have

[tex]a=1,~~r=\dfrac{6}{1}=\dfrac{6^2}{6}=\dfrac{6^3}{6^2}=6.[/tex]

Therefore, the sum up to 4 terms will be

[tex]S_4=\dfrac{a(r^4-1)}{r-1}=\dfrac{1(6^4-1)}{6-1}=\dfrac{1296-1}{5}=\dfrac{1295}{5}=259.[/tex]

Thus, the required sum is 259.

Petra is raking leaves in her backyard. Petra’s backyard is rectangular and has an area of 476 square feet. One side of the backyard is 28 ft. How long is the other side?

Answers

You have to divide 476 by 28 and you’ll get 17

Which statements are true? Select all that apply.
Centigrams are larger than decigrams.
Hectometers are smaller than kilometers.
Dekaliters are larger than kiloliters.
Grams are smaller than dekagrams.

Answers

Answer:

Hectometers are smaller than kilometers

and

Grams are smaller than dekagrams.

Hope it help you! :3

Answer:so sorry for give me its on accident

A flashlight is projecting onto a wall, as shown below

Answers

Answer:

n  = 30

Step-by-step explanation:

The triangles share the same angle measures, so they are similar triangles.  The side lengths of similar triangles are proportional to each other, so we can set up a proportion and solve for n...

16 is to 20 as 24 is to n

16/20 = 24/n       now solve for n by cross multiplying

16n = 480

   

     n = 30      (divide both sides by 16)

The original and projected triangles are similar. We set up a proportion based on the corresponding sides.Solving for the missing length, we get 19.2 cm.None of the provided options are correct.

We are given that the original triangle and its projection are similar. This means that the corresponding angles of the two triangles are congruent, and the ratios of their side lengths are equal.

We are also given the lengths of two sides of the original triangle: 16 cm for the base and 20 cm for the hypotenuse. We are asked to find the missing length on the projection, which corresponds to the base of the original triangle.

To solve this problem, we can set up a proportion based on the similar triangles. Let x be the missing length on the projection:

(base of original triangle) / (base of projection) = (hypotenuse of original triangle) / (hypotenuse of projection)

Substituting the known values:

16 cm / x = 20 cm / 24 cm

Cross-multiplying:

16 cm * 24 cm = x * 20 cm384 [tex]cm^2[/tex] = 20x [tex]cm^2[/tex]x = 384 [tex]cm^2[/tex] / 20 [tex]cm^2[/tex]x = 19.2 cm

Therefore, the missing length on the projection is 19.2 cm. However, the answer choices are all rounded to one decimal place.

Rounding 19.2 cm to one decimal place gives us 19.0 cm. Therefore, none of the provided options are correct.

The question probable maybe:

A flashlight is projecting onto a wall, as shown below

The original triangle and its projection are similar. What is the missing length on the projection?

a. 12.6

b. 17.9

c. 35

d. 31

A principal conducts a study to find the average age of all math teachers in a given high school by recording all their ages. What type of study is this?

Answers

Answer: using edg.?

keep it simple.

Answer is Census.

Step-by-step explanation:

Answer:

Question 1 is: Experiment

Question 2 is: Census

Step-by-step explanation:

trust me

Otis had a salad for $4.50, a sandwich for $6.25, and a drink at his favorite restaurant. The tax for the entire meal was $0.54. What was the price of the drink?

Answers

Answer:

Price of the drink = $1.25

Step-by-step explanation:

4.5% * ( $4.5 + $6.25 + drink) = $0.54

4.5/100 * ( $4.5 + $6.25 + drink) = $0.54

0.045 * ( $4.5 + $6.25 + drink) = $0.54

0.045/0.045 * ( $4.5 + $6.25 + drink) = $0.54/0.045

( $4.5 + $6.25 + drink) = $12

10.75 + drink = $12

drink = $12 - $10.75

drink = $1.25

The price of the drink is $1.25

How to determine the price of the drink?

The given parameters are:

Tax amount = $0.54

Salad = $4.50

Sandwich = $6.25

Let the price of the drink be x.

Given that the sales tax is 4.5%, we have:

4.5% * ( $4.5 + $6.25 + x) = $0.54

Divide both sides by 4.5%

( $4.5 + $6.25 + x) = $12

Evaluate the sum

$10.75 + x= $12

Subtract $10.75 from both sides

x = $1.25

Hence, the price of the drink is $1.25

Read more about sales tax at:

https://brainly.com/question/25783927

which solid figure has five faces, five vertices, and eight edges

1.triangular pyramid
2.rectangular pyramid
3.pentagonal pyramid
4.triangular prism

which of the following solid figures has the least number of vertices

1.triangular pyramid
2.hexagonal pyramid
3.cone
4.triangular prism

how many faces the are on following solid figure

1.2
2.15
3.10
4.7

Answers

1) Triangular pyramid

2) A cone

3) I don't have the picture of the figure so I don't know

Answer: this is the first ones answer is D.

The second answer will be C.

Common factors of 16a and 20ab.

Answers

Answer:

[tex]\large\boxed{Common\ factors:\ 1,\ 2,\ 4,\ a,\ 2a,\ 4a}[/tex]

Step-by-step explanation:

[tex]16a=2\cdot2\cdot2\cdot2\cdot a\\Factors:\boxed1,\ \boxed2,\ \boxed4,\ 8,\ 16,\ \boxed{a},\ \boxed{2a},\ \boxed{4a},\ 8a,\ 16a\\\\20ab=2\cdot2\cdot5\cdot a\cdot b\\Factors:\boxed1,\ \boxed2,\ \boxed4,\ 5,\ 10,\ 20,\ \boxed{a},\ \boxed{2a},\ \boxed{4a},\ 5a,\ 10a,\ 20a,\\b,\ 2b,\ 4b,\ 5b,\ 10b,\ 20b,\ 2ab,\ 4ab,\ 5ab,\ 10ab,\ 20ab\\\\Common\ factors:\ 1,\ 2,\ 4,\ a,\ 2a,\ 4a[/tex]

Answer:

2, 4, and a  

Step-by-step explanation:

Factors of 16a:    2, 4,    8,     16,       a

Factors of 20ab: 2, 4, 5,   10,     20, a, b

The common factors of 16a and 20ab are 2, 4, and a.

Which equation models the line that passes through points (4, 6) and (−4, 8)

Answers

Answer:

y = - [tex]\frac{1}{4}[/tex] x + 7

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

To calculate m use the slope formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (4, 6) and (x₂, y₂ ) = (- 4, 8)

m = [tex]\frac{8-6}{-4-4}[/tex] = [tex]\frac{2}{-8}[/tex] = - [tex]\frac{1}{4}[/tex], hence

y = - [tex]\frac{1}{4}[/tex] x + c ← is the partial equation

To find c substitute either of the 2 points into the partial equation

Using (- 4, 8 ), then

8 = 1 + c ⇒ c = 8 - 1 = 7

y = - [tex]\frac{1}{4}[/tex] x + 7 ← equation of line

First to answer will be the brainliest I need the answer ASAP

Answers

6b+2 I think I combined them and that’s what I got
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