Simplify the radical expression (3+√6)(3-√6)

Answers

Answer 1

Applying the distributive property, the given radical expression can be represented by 15.

Properties of Multiplication

The properties of multiplication are:

     Distributive:  a(b±c)=  ab±ac      Commutative:   a . b = b. a      Associative:    a(b+c)=  c(a+b)      Identity: b.1=b

The question gives [tex](3+\sqrt{6} )(3-\sqrt {6} )[/tex]. Therefore, you should analyze the properties presented previously, and after that, you should identify which was used.

Here, it is possible to see that you can apply the distributive property. See below.

[tex](3+\sqrt{6} )(3-\sqrt {6} )\\ 9-3\sqrt {6} +3\sqrt {6}+6[/tex]

9+0+6=15

Then,  the radical expression (3+√6)(3-√6)=15

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Related Questions

Given the following information about the arithmetic sequence an, find a10. A5=24 a8=39

Answers

The 10th term of an arithmetic sequence is found as the 49.

Define the term arithmetic sequence?An ordered group of numbers with a shared difference with each consecutive word is referred as an arithmetic sequence. For particular, the common difference in the arithmetic series 3, 9, 15, 21, and 27 is 6. An arithmetic progression would be another name for an arithmetic sequence.

As per the stated values in question.

Fifth term a5 = 24

8th term a8 = 39.

Let the first term be 'a' and the common difference be 'd'.

Then,

a5 = a + 4d

24 = a + 4d .....eq 1

a8 = a + 7d

39 = a + 7d .....eq 2

Solving eq 1 and 2.

3d = 15

d = 5

a = 4

Now,

a10 = a + 9d

a10 = 4 + (9 x 5)

a10 = 4 + 45

a10 = 49

Thus, the 10th term of an arithmetic sequence is found as the 49.

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A 5-kilogram bag of cat food costs $14.85. What is the unit price?

Answers

Answer:

I believe the unit price would be $2.97

Step-by-step explanation:

Hope this helps! :))
Please let me know if its incorrect.

PLEASE HELP ASAP ILL GIVE BRAINLIEST
Find x and y
*image is linked*

Answers

The values of x and y in the similar triangles are 3 and 2 respectively.

What are similar triangle?

Two triangles are similar if they have the same ratio of corresponding sides and equal pair of corresponding angles.

In similar triangles, corresponding sides are always in the same ratio.

Therefore, using similar triangle ratio, let's find the value of x and y.

x / 6 = 1.5 / 3

cross multiply

3x = 1.5 × 6

3x = 9

divide both sides by 3

x = 9 / 3

x = 3

Let's find y.

y / 4 = 1.5 / 3

cross multiply

3y = 6

divide both sides by 3

y = 6 / 3

y = 2

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Given f(x)=2x+4 ​, describe how the graph of g compares with the graph of f.
g(x)=2(0.4x)+4
Please help

Answers

The function g(x) is a horizontal dilation of scale factor k = 5/2 of function f(x).

How the two graphs compare?

We know that f(x) is a linear function:

f(x) = 2x + 4

Here we know that:

g(x) = 2*(0.4x) + 4

Notice that function g(x) can be written as:

g(x) = f(0.4*x)

So we have a horizontal dilation, remember a horizontal dilation of scale factor k can be written as:

g(x) =f(x/k)

Notice that 0.4 = 2/5

Then we have a horizontal dilation of scale factor 5/2.

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How would you write the work to get the answer to the problem your neighbor pays you $20 every two hours you work you work for eight hours on saturday how much does your neighbor owe you

Answers

The neighbour us an amount of $160 for the work that we did for him.

As per the agreement the never will pay 20 dollars were every hour that we work.

We worked for a total of 8 hours on Saturday.

So, according to the unitary method,

Total amount of money owned by the neighbour = number of hours for which we work x the amount received for working per hour.

Total amount of money owned by the neighbour = 8 × 20

Total amount of money owned by the neighbour = 160 dollars.

The total amount of money owned by the neighbour to us is 160 dollars.

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Ojojo and fifi shared an amount of
ratio 3. 4 respectively.
money
If frifi had 140000 had much was
Shared ?

Answers

The total amount that was shared  $245000 .

In the question ,

the ratio of amount shared by JoJo and Frifi is given

the ratio is given as 3:4  .

the amount that JoJo get = 3x

the amount that Frifi get = 4x

given that Frifi got $140000 .

So , 4x = 140000

Dividing both sides by 4 ,

we get ,

x = 140000/4

x = 35000

total amount shared = 3x + 4x = 7x

Substituting the values of x = 35000 , we get

total amount shared = 7*35000

= 245000

Therefore , The total amount that was shared  $245000 .

The given question is incomplete , the complete question is

JoJo and Frifi shared an amount in the ratio 3:4 respectively , if Frifi had $140000 , then find the total amount that was shared ?

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S.
The memory card on Melcher's digital camera can hold about 430 pictures. Melcher used 18% of
the memory card while taking pictures at a family reunion. About how many pictares did
Melcher take at the family reunion? Round to the nearest whole number.

Answers

Answer:

Step-by-step explanation:

18% of 430 comes out to 77.4 total pictures taken. After rounding it to the nearest whole number because you cant take a fraction of a picture it would be 77 total pictures taken.

What is the absolute value of −9.4?

Answers

Answer:

9.4

Step-by-step explanation:

26. Alex can complete a certain task in 10 hours. Working together, Alex and Eli can do it in 6 hours. How long will it take Eli alone to complete the task?​

Answers

Eli will take 12 hours alone to complete the task.

What are distance word problems?Algebra word problems frequently take the form of distance word problems. They involve a situation in which you must determine the speed, distance, or duration of one or more objects' travels. Because one of the most well-known distance problems involves determining the precise moment when two trains traveling in opposite directions cross paths, these are frequently referred to as "train problems."distance = rate x timed = rtIn other words, the distance you traveled is equal to the time you spent driving multiplied by the speed you were traveling at.

Acc to our question-

alex take 10 hrs to complete a workalex and eli both take 6 hours.distance = rate x timed = rtdistance = rate x timeeli will take 4 hrs

Hence,Eli will take 4 hrs.

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Can anyone write the equation of the graph?

Answers

The absolute value graph has its equation to be f(x) = |x - 3| + 5

How to determine the equation of the graph?

The graph represents the given parameter

From the graph, we can see that the graph is an absolute value graph

An absolute value graph is represented as

f(x) = a|x - h| + k

Where h and k are the vertex of the graph

In this case, they are

h = 3 and k = 5

This is because the minimum point of the graph is (3, 5)

Substitute values for h and k in the form of the equation

So, we have the following representation

f(x) = a|x - 3| + 5

A point on the graph is (2, 6)

This gives

a|2 - 3| + 5 = 6

When the value of variable a is solved, we have

a = 1

So, the equation becomes

f(x) = 1 * |x - 3| + 5

Evaluate the products

f(x) = |x - 3| + 5

Hence, the equation of the graph is f(x) = |x - 3| + 5

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Lines t and u are parallel and intersected by transversal s.


Which statement is true?

Answers

Answer:

1) ∠5 and ∠6 are supplementary angles not vertical angles this statement is false.

2) ∠2 and ∠7 are alternally interior angles yeah that statement is true.

3) ∠2 and ∠4 are supplementary angles no they are not complementary, because sum of those two angles i.e. ∠2+∠4 =180.

so this statement is false

Step-by-step explanation:

Step-by-step explanation:

here ∠2+∠5=180°; ∠1+∠6=180; ∠4+∠7=180°; and for ∠3+∠7=180°;

here ∠6+∠8=180°; ∠1+∠3=180°; ∠2+∠4=180°; ∠5+∠7=180; here the

∠1=∠4; ∠2=∠3; ∠5=∠8; ∠6=∠7 (opposite angles are equal)

Find the dimensions of the rectangle of largest area that can be inscribed in an equilateral.

Answers

The dimension of the rectangle of the largest area in an equilateral triangle is √3/4L.

Here we have to find the dimension of the rectangle of the largest area.

Let the distance from the tip of the base of the triangle to the point that the top of the rectangle meets the triangle be x.

The width of the rectangle is √3/2 x.

By this, we can find the area of the rectangle

Area = √3/2x ( L -x) = √3/2 xL - √3/2x²

To find the maximum area we have:

dA/ dx = 0

dA / dx = √3/2L - √3x = 0

From we have to find the value of x,

√3 x = √3/2L

x = L/2

The dimension of rectangle is √3/2x = √3/2(L/2)

                                                             = √3/4 L

Therefore the dimension of the rectangle is √3/4 L.

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The unit rate is cup of milk to
1 cup of flour, so the constant of
proportionality is 2. Let y
represent the number of cups of
milk, and x represent the
number of cups of flour.
3
y = 2x
y=2(3), or 21
4

Answers

The ratio connecting two given numbers in what is known as a proportional relationship is the constant of proportionality.Constant ratio, constant rate, unit rate, constant of variation, and even rate of change are other names for the constant of proportionality.

Find the solution ?

Therefore, let's examine the provided graph first in order to locate the solution.We can see that 1 batch of cookies need 2 cups of flour

This provides us with a ratio of 2:1.

Constant proportionality is the ratio of two proportional quantities having a constant value.

Since the batch of cookies grows by 1 for every 2 cups added, we have a constant proportionality of 2 cups.

3y=2x

Divide each term in 3y=2x

by 3

and simplify.

Tap for more steps...

y=2x3

Since the equation can be written in the form y=kx

, y varies directly with x and k. The constant of variation, k, is 23

23

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Write the slope-Intercept form of the given line. Include your work in your final answer.
Type your answer in the box provided to submit your solution.

Answers

The slope-Intercept form of the given line is y=x-1.

What is the equation of a line?

A line is a one-dimensional shape that is straight, has no thickness, and extends in both directions indefinitely. The equation of line is given by,

y =mx + c

where,

x is the coordinate of the x-axis,

y is the coordinate of the y-axis,

m is the slope of the line, and

c is y-intercept.

The given line passes through (0,-1) and (1,0). Therefore, the slope of the given line can be written as,

Slope of the line, m = [0 - (-1)]/(1 - 0)

                                 = 1 / 1

                                 = 1

Now, the equation of the line passing through (0,-1) can be written as,

y = mx + c

(-1) = 1(0) + C

-1 = 0 + C

C = -1

Substitute all the value in the equation of the line,

y = m(x) + c

y = 1(x) + -1

y = x - 1

Hence, the equation of the given line is y=x-1.

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The equation of the line from the given graph can be written as  y = x + 1.

What is the equation for a straight line?

A straight line can be written in the form of equation as, y = mx + c.

Two straight lines intersect each other only at one point.

When two straight lines are parallel to each other the angle between them is zero.

From the given graph the points on the straight line can be determined as (1, 0) and (2, 1).

The slope of the line passing through points (x₁, y₁) and (x₂, y₂) is given as slope = (y₂ - y₁) / (x₂ - x₁).

Then, the slope of the line is (2 - 1) / (1 - 0) = 1

Now, the equation of the line can be written as,

(y - 1) / (x - 0) = 1

⇒ y - 1 = x

⇒ y = x + 1

Hence, the equation of the line in slope-intercept form is given as y = x + 1.

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LOTS OF POINTS coordinate proof explaining how the midsegment of a triangle forms a triangle with 1/4 of area

Answers

The coordinate geometry, the midsegment theorem shows that the midsegment of a triangle is 1/4 area of the triangle.

How to show that the midsegment of a triangle is 1/4 area?

The midsegment if a triangle is defined as a line that joins two midpoints of two opposite sides of a triangle.

The midsegment theory of a triangle states that in a triangle, the midsegments of 2 sides is parallel to, and half the length of the 3rd side.

The 3 midsegments of a triangle forms a small triangle within the larger triangle.

This therefore, forms 4 triangles.

Area of a triangle =base x height

Hence 4 triangles are formed,

The area of the larger triangle is [tex]\frac{bh}{4}[/tex] =1/4(bh)

Therefore;  Area =1/4 of area.

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Hooke's Law states that the displacement, d, that a spring is stretched by a hanging object varies directly as the mass, m, of the object. If the distance is 12cm when the mass is 4kg, what is the distance when the mass is 5kg.

Answers

The distance when the mass is 5kg is 15cm.

What is the distance?

When two values vary directly, it means that both values move in the same direction. If one of the value increases, the other value increases and if one of the values decreases, the other value decreases.

The equation that is used to represent direct variation is:

d = km

Where:

d = distance k = constant of variation m = mass

The first step is to determine the value of k:

12 = 4k

k = 12 / 4

k = 3

d = 3 x 5 = 15cm

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10. √961
how please help me ​

Answers

Answer: 31

Step-by-step explanation:

the prime factorization of 961 is 31×31  the value of the square root of 961 is 31.

Hope this helps! Have a good day! :)

If you translate the square root parent function up three units, and reflect it across the x-axis, what is the equation of the new function?

Answers

The equation the function after the transformation is (c) g(x) = -√x  - 3

How to determine the transformation of the function?

The equation of the function is given as

f(x) = √x ---- i.e the square root parent function

The sequence of transformations is given as follows:-

Translate up by 3 unitsReflection across the x-axis

When the above transformations are combined, we have:

Translate up by 3 units: g(x) = f(x) + 3

Reflection across the x-axis: g(x) = -(f(x) + 3)

So, we have

g(x) = -(√x + 3)

Expand

g(x) = -√x  - 3

Hence, the function g(x) is (c) g(x) = -√x  - 3

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equivalent expressions
it’s due tmr and i don’t understand
thank you if you are willing to help

Answers

answer:c (x+4). you just combine like terms and then add everything together

Answer:

c) x+4

Step-by-step explanation:

1. The original expression can be re-written as (I just rewrote each fraction so that there are no mixed numbers):

[tex]\frac{x}{2}+\frac{9}{2}+\frac{x}{2}-\frac{1}{2}[/tex]

2. Next, you want to group all the terms with the variable x, and all the terms without a variable. All the fractions should be rearranged:

[tex]\frac{x}{2}+\frac{x}{2}+\frac{9}{2}-\frac{1}{2}[/tex]

3. You can now simplify and add the variable terms and the non-variable terms.

[tex]\frac{x+x}{2}+\frac{9-1}{2}[/tex]

Simplify further:

[tex]\frac{2x}{2}+\frac{8}{2}[/tex]

[tex]x+4[/tex]

So your answer is choice c

611.2 times 0.0061 with steps please

Answers

well, there's no great mystery when it comes to getting a product from decimals.  Now, we have 611.2 and 0.0061, let's for a second take off the decimal point and simply multipy 6112 times 00061

6112 * 00061 = 372832

ok....... hmmm now let's see 611.2 had 1 decimal, whilst 0.0061 had hmm 4 decimals, let's add them up, that's 1 + 4 = 5 decimals total from both amounts, that simply means that our 372832 needs to have 5 decimals as well, so that makes it 3.72832.

Y = 5x -12 make x subject of formula

Answers

Answer:

(y+12)/5=x

Step-by-step explanation:

y=5x-12

get x by itself

y+12=5x

divide both sides by 5

(y+12)/5=x

okay so Y = 5x - 12
move the -12 to the other side it becomes +
12+ Y = 5x
then minus Y on both sides so the Y cancels Y and 5x- Y is i’m not sure but u guess it cancels so
12=5x then you divide the 5
2.4=x

HELP!
Identify the dependent events.


A. spinning a prime number on a spinner three times in a row


B. drawing a black card and then a red card from a well shuffled 52-cards deck


C. drawing a green jelly bean from a packet of jelly beans and then drawing a red

jelly bean after replacing the first


D. getting two heads when a coin is tossed twice

Answers

As replacing a draw is an independent event, the dependent events are

B. drawing a black card and then a red card from a well-shuffled 52-cards deck.

D. Getting two heads when a coin is tossed twice.

What are dependent events?

If the outcome of one event has an impact on the outcome of another, then two events are dependent. For instance, if you draw two colored balls at random from a bag and don't replace the first ball before drawing the second, the result of the second draw will be influenced by the result of the first.

From the given options we conclude that the dependent events are

Drawing a black card and then a red card from a well-shuffled 52-cards deck.

Getting two heads when a coin is tossed twice.

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X = 4/2, y=-3/4 find X+Y
x-y

Answers

Step-by-step explanation:

X+Y=4+2=6X-Y=4-2=2

OR

X+Y=3+4=7X-Y=3-4=-1

What is the value of the expression c²a + 2a÷b, when a = -3, b=2, and c = 3?
03
09
O
O 12
O
18

Answers

Answer:

-30  I don't see -30 as an answer option.  Please check the problem.

Step-by-step explanation:

c²a + 2a÷b

c²a + 2a/b   Enter values for a, b and c for a = -3, b= 2 and c = 3.

(3)²(-3) + 2(-3)/(2)

(9)*(-3) + (-6)/(2)

-27 + (-3)

-27 - 3 = - 30

Can anyone state the vertex of the graph?

Answers

The graph has no vertex

The transformations from the parent function are

Vertical shift down 2Horizontal shift left 4

How to determine the vertex?

To determine the vertex of a graph, we look for the location of the maximum or the minimum point of the graph

Because the graph is a cubic function, the graph has no maximum or minimum (by definition)

This means that there is absence of a vertex in the graph

The transformation from the parent function

In (a), we have

We can see that the graph is a cubic function

This function is represented as

y = ∛x

In this graph, we can see that the graph is 4 units to the left  i.e. y = ∛(x - 4)

And 2 units below the origin i.e. y = ∛(x - 4) + 2

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Hayden and Jamie completed 20 math problems together. Jamie completed 2 more than twice the number that Hayden completed. Let p represent the number of math problems Hayden completed.Write an equation that can be used to find the number of math problems that Jamie completed.

Answers

Answer:

[tex]p+p+2=20[/tex]

Step-by-step explanation:

This is what my math teacher told us, so I don't know try this.

Step-by-step explanation:

p + j = 20

j = 2p + 2 --> -2p + j = 2

[tex] \binom{1 \: 1}{ - 2 \: 1} \: \binom{20}{2} = \binom{p}{j} [/tex]

Type the correct answer in the box. If necessary, use / for the fraction bar.
Both pyramids in the figure have the same base area as the prism. The ratio of the combined volume of the pyramids to the volume of the pris
expressed as a fraction in simplest form, is

Answers

The ratio of the combined volume of these pyramids to the volume of the prism as a fraction is equal to 1/3.

How to calculate the volume of a pyramid?

The volume of a pyramid can be calculated by using this formula:

Volume = 1/3 × b × h

Where:

h is the height.

b is the base area.

Volume of this prism = 1/2 × b × h

Here, both pyramids have the same base area as the prism, their volume is given by:

Volume of a pyramid = (1/3 × b × h) + (1/3 × b × h)

Volume of a pyramid = 2/3 × b × h

Also, the volume of this prism = 1/2 × b × h

Thus, the ratio is given by:

Ratio = (2/3 × b × h)/(1/2 × b × h)

Ratio = 2/3 × 1/2

Ratio = 1/3.

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One day in 2014, 1 euro was worth x rand.
One year later, 1 euro was worth (x+1) rand.
Winston changed 1000 rand into euros in both years.
In 2014 he received 4.50 euros more than in 2015.
Write an equation in terms of x and show that it simplifies to 9x²+9x-2000=0.

Answers

1000/x - 1000/(x + 1) = 4.5 is an equation in terms of x that simplifies to this quadratic equation 9x² + 9x - 2000 = 0 as shown below.

What is a quadratic equation?

In Mathematics, the standard form of a quadratic equation is given by this mathematical expression:

ax² + bx + c = 0.

Since Winston changed 1000 rand into euros in both 2014 and 2015, this can be represented by this mathematical expression:

1000/x - 1000/(x + 1) = 4.5

Taking the lowest common multiple (lcm), we have:

1000/x(x + 1) = 4.5

1000/(x² + x) = 4.5

Cross-multiplying, we have the following:

1000 = 4.5(x² + x)

1000 = 4.5x² + 4.5x

Multiplying both sides of the equation by 2, we have:

2 × (1000 = 4.5x² + 4.5x)

2000 = 9x² + 9x

Rearranging the terms and equating to zero, we have:

9x² + 9x - 2000 = 0.

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0.1 times n equals 89.5

Answers

Answer: n=895

Step-by-step explanation:

Answer:

n = 895

Step-by-step explanation:

Here we want to find n , 1st form the Equation then solve it for n

0.1 times n = 0.1n

0.1 times n equal 89.5

Then 0.1n = 89.5

Solve for n , b dividing both sides by 0.1

n = 89.5 / 0.1 = 895

Given that D( x ) = 2 x , select all of the following that are true statements.
D( x ) is a direct variation.
D( x ) is a function.
D( x ) is a rule for the set of points (5, 10), (6, 12) and (-2, -4)
x is the dependent variable.
D(6) = 3

Answers

D(6) = 3 is the answer to x
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