multiply: (sqrt10 +2 sqrt8)(sqrt10-2 sqrt8)

Answers

Answer 1

Answer:

(√10 +2√8)(√10 -2√8)=

(10 -8√5 + 8√5 -32)

10+0-32

10-32

= -22

Hope this helps.

Answer 2

Answer:

The other person is right, A. -22

Step-by-step explanation:


Related Questions

Which is the best reason why 2/3 is the exact quotient for 1/4 divided 3/8

Answers

Because if you divide 1/4 by 3/8 you get 2/3.

The quadrilateral with the following vertices is a
(-6, -2), (1, -2), (4,-5), (-4,-5)
parallelogram
rectangle
trapezoid
square

Answers

Answer:

Parallelogram

Step-by-step explanation: You have to plot the points in a coordinate plane. If you do that and connect the dots you will get parallelogram.

(URGENT)Determine the cross product of the vectors: x x y​

Answers

x x y = (13 i + 4 j - 9 k) x (- i + 7 j - 4 k)

Distribute the cross product:

x x y = 13*(-1) (i x i) + 4*(-1) (j x i) + (-9)*(-1) (k x i)

........... + 13*7 (i x j) + 4*7 (j x j) + (-9)*7 (k x j)

........... + 13*(-4) (i x k) + 4*(-4) (j x k) + (-9)*(-4) (k x k)

x x y = -13 (i x i) - 4 (j x i) + 9 (k x i)

........... + 91 (i x j) + 28 (j x j) - 63 (k x j)

........... - 52 (i x k) - 16 (j x k) + 36 (k x k)

By definition of the cross product, we have

i x i = j x j = k x k = 0

i x j = k

j x k = i

k x i = j

and for any two vectors x and y, the product is anti-symmetric:

x x y = -(y x x)

This makes the products on the "diagonal" vanish, and we can condense terms using the anti-symmetry property:

x x y = (4 + 91) (i x j) + (9 + 52) (k x i) + (63 - 16) (j x k)

x x y = 95 k + 61 j + 47 i

x x y = 47 i + 61 j + 95 k

Can someone please help me with this??

Answers

Answer: (x,y)=(-2/3,15)

Negative 2 over three

I need help finding the area of the triangle plz. sorry I don't understand fractions that much

Answers

Answer:

[tex]24\frac{4}{15}\\\mathrm{Decimal:\quad }\:24.26666\\=24.27m^2[/tex]

Step-by-step explanation:

Area of right triangle formula is

[tex]A=\frac{ab}{2} \\\frac{5\frac{3}{5}\cdot \:8\frac{2}{3}}{2}\\\mathrm{Convert\:mixed\:numbers\:to\:improper\:fractions}:\quad 5\frac{3}{5}=\frac{28}{5}\\\frac{\frac{28}{5}\cdot \:8\frac{2}{3}}{2}\\\mathrm{Convert\:mixed\:numbers\:to\:improper\:fractions}:\quad 8\frac{2}{3}=\frac{26}{3}\\\frac{\frac{28}{5}\cdot \frac{26}{3}}{2}\\\mathrm{Multiply\:}\frac{28}{5}\cdot \frac{26}{3}\::\quad \frac{728}{15}\\=\frac{\frac{728}{15}}{2}[/tex]

[tex]\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{\frac{b}{c}}{a}=\frac{b}{c\:\cdot \:a}\\=\frac{728}{15\cdot \:2}\\\mathrm{Multiply\:the\:numbers:}\:15\cdot \:2=30\\=\frac{728}{30}\\\mathrm{Cancel\:the\:common\:factor:}\:2\\=\frac{364}{15}\\\mathrm{Convert\:improper\:fractions\:to\:mixed\:numbers}:\quad \frac{364}{15}=24\frac{4}{15}\\=24\frac{4}{15}\\\mathrm{Decimal:\quad }\:24.26666[/tex]

Question 3 of 10
2 Points
Which is the best definition of an exterior angle of a triangle?
O A. An angle that is complementary to one of the interior angles of
the triangle
B. An angle that is formed by two segments that are not sides of the
triangle
C. An angle that forms a linear pair with one of the interior angles of
the triangle
O D. An angle that is formed by two segments that are sides of the
triangle

Answers

Answer:

an interior angle is an angle inside a shape, while an exterior angle is an angle made by the side of a shape and a line drawn out from an adjacent side. The sum of the interior angles of a triangle is always 180. ... An exterior angle is equal to the sum of the non-adjacent interior angles.

Step-by-step explanation:

Answer:

An angel that forms a linear pair with okie of the interior angels of the triangle

Step-by-step explanation:

a fireplace contains 54 bricks along its bottom row. if each row above decreases by 3 bricks, what is the function that shows the bricks on the 10th row

Answers

Step-by-step explanation:

the fireplace would have 24 bricks on the 10th row

Answer:

27 bricks

Step-by-step explanation:

y= 54- 3(x-1)

y= 57- 3x

is the function, y= number of bricks on the xth row, x= row number above the bottom one

x=10 ⇒ y= 57 - 3*10 ⇒ y= 27 bricks

A rectangle has sides of length 7 in and 13 in. To the nearest degree, what angle does the diagonal make with the longer side?
Round your answer the nearest tenth.

A)57.4
B)28.3
C)61.7
D)32.5

Answers

I think it’s D or maybe just maybe it’s will have to be B

The temperature on Monday was - 23 F . The temperature on Tuesday was 18 degrees higher. What was the temperature on Tuesday?

Answers

Answer: the Temperature on Tuesday is 13 degrees Celsius

Yasmine earns $54 for dog walking. She walks her neighbors dog 12 times.
Write an equation that represent how to find the amount Yasmine earns per dog walk explain what your variable represents.
How much does Yasmine earn per dog walk.

Answers

Answer:

$4.5

Step-by-step explanation:

If the total price Yasmine earns was $54 and she walked her neighbors dog 12 times then we need to divde them.

54/12

= $4.5  So she earns $4.5 every time she walks her neighbors dog

What is the area of the parallelogram?
A. 39. 20 cm2
B. 39.33 cm?
c. 56.58 cm2
D. 78.66 cm2
E. 93.48 cm2

Answers

Answer:

D

Step-by-step explanation:

A=bh

A=11.40*6.90

A=78.66 cm^2

Answer:

base x height = area

6.9 x 11.4 = 78.66

D. is the answer

Hope this helps

Step-by-step explanation:

Which represents "The shape is a rhombus if and only if the diagonals are perpendicular and the sides are congruent"?​

Answers

Answer:

True

Step-by-step explanation:

Answer:

Step-by-step explanation:

Will mark brainliest!
Please help!

Answers

Answer:

1.

30/100×450

0.3×450

135

450-135=315

So the sale price of a shirt is Nu.315

2.

30/100×450

0.3×450

135

450+135=585

So the selling price of the shirt is Nu.585

Answer:

Q1:315

Q2:585

Step-by-step explanation:

450 -30% (Percentage decrease) =

450 - (30% × 450) =

450 - 30% × 450 =

70 ÷ 100 × 450 =

70 × 450 ÷ 100 =315

Q2: 450 + 30(Percentage increase) =

450 + (30% × 450) =

450 + 30% × 450 =

130 ÷ 100 × 450 =

130 × 450 ÷ 100 =585

Okay so I need help figuring out how to do this table

Answers

Answer:

i think the answer is 125 im not sure

Step-by-step explanation:

y = 5^3 = 125

for 3 i’m pretty sure it’s 125

What reason allows the following statement to be true?
Given AB + CD = JK and CD = 5, then AB + 5 = JK​

Answers

Answer: Subtituting CD =5 in AB + CD = JK

Step-by-step explanation:

Hi, to answer this question we have to analyze the information given:

• AB + CD = JK (equation 1 )

• CD = 5 (equation 2)

So, we simply have to combine the equations.

Substituting CD =5 in equation 1:

AB + CD = JK

AB+(5) =JK

Feel free to ask for more if needed or if you did not understand something.  

whats 2+2 ? ( This is worth 60 points go get them )

Answers

2+2 = 4

Very easy, just add them lol gotem

                       

Answer:

4

Step-by-step explanation:

2 + 2

Add the numbers.

= 4

Find the value of x using properties of parallel lines. answers: A) 1 B) 8 C) 5 D) 3.5

Answers

Answer:

1

Step-by-step explanation:

Answer:

B. x=8

Step-by-step explanation:

The 2 angles are consecutive interior angles, and therefore they are supplementary. This means that they add to 180 degrees.

(12x+8)+(8x+12)=180

Combine like terms. Add all the terms with a variable, then the terms without a variable.

(12x+8x)+(8+12)=180

20x+20=180

Now, solve for x by isolating x. Perform the inverse operation to both sides.

20 is being added to 20x. The inverse of addition is subtraction. Subtract 20 from both sides.

20x+20=180-20

20x=180-20

20x=160

x is being multiplied by 20. The inverse of multiplication is division. Divide both sides by 20.

20x/20=160/20

x=160/20

x=8

x is equal to 8, and B is the correct answer.

Please help me asap ty

Answers

Step-by-step explanation:

First, I would work out the missing angle:

25° + 90° (right-angle) = 115°

180° - 115° = 65°

The missing angle is 65°.

-I'm too dumb and don't remember how to work out the rest but I hope I helped a bit

Answer:

Side AB = 4.41

Question 4
4.53
60
500
729
8000

Answers

4 * 5^3= 500
5^3 = 125
125 * 4 = 500
The correct answer is 500

The shortest route from London to Liverpool is 210 miles. A lorry is expected to take 3.5 hours to travel this route. The lorry actually travels by a different route which increases the distance by 20%, but it still arrives in 3.5 hours. By how many more mph than the expected speed does the lorry travel?

Answers

Answer:

72 mph

Step-by-step explanation:

Please give brainliest

You have distance =210 miles

Increase it by 20%

210+(210*0.2) = 252 miles I wrote 0.2 instead of writing 20%/100% hope you understand.

The new route is 252 miles

Time travelled = 3.5 hours

Speed=distance/time

Speed = 252/3.5 = 72 mph


Graph the following line on the axes provided:
F(x)=5/4x+1
Can you guys please help me am struggling with this

Answers

view the attached image for the graph.

Choose the equation for the graph
below.
x+1
x-2
2x-3
a. y =
b.y =
X-4
3-X
c. y =
x+2
d.y=
e. y =
2x+4
x-1
x+4

Answers

Answer:

B. y=(2x-3)/(x-4)

Step-by-step explanation:

Find the asymptotes.

Vertical Asymptotes:  

x  =  4

Horizontal Asymptotes:  

y  =  2

No Oblique Asymptotes.

The graph.

hich equations are equivalent to y = two-thirds x minus 4 when written in slope-intercept form? Check all that apply. 3 x minus 2 y = 4 2 x minus 3 y = 12 Negative 4 (2 x minus 3 y) = negative 4 (12) 2 (x + 6) = 3 y 2 x minus 3 y = 4

Answers

Answer:

[tex]2x - 3y = 12[/tex]

[tex]-4(2x - 3y) = -4(12)[/tex]

Step-by-step explanation:

Given

[tex]y = \frac{2}{3}x - 4[/tex]

Required

Equivalents of the given equation;

We start by multiply both sides of the equation by 3

[tex]3* y = 3(\frac{2}{3}x - 4)[/tex]

[tex]3y = 3 * \frac{2}{3}x - 3 * 4[/tex]

[tex]3y = 2x - 12[/tex] ---- Equation 1

Subtract 3y from both sides

[tex]-3y + 3y = 2x - 12 - 3y[/tex]

[tex]0 = 2x - 12 - 3y[/tex]

Add 12 to both sides

[tex]12 + 0 = 2x - 12 - 3y + 12[/tex]

[tex]12 = 2x - 3y[/tex]

Rearrange:

[tex]2x - 3y = 12[/tex] ---- This is equivalent to the given equation;

Multiply both sides of the above equation by -4

[tex]2x - 3y = 12[/tex]

[tex]-4(2x - 3y) = -4(12)[/tex]  ---- This is also equivalent to the given equation;

From the list of given options, only these two are equivalent to [tex]y = \frac{2}{3}x - 4[/tex]

Answer:

Answer:

Step-by-step explanation:

Given

Required

Equivalents of the given equation;

We start by multiply both sides of the equation by 3

---- Equation 1

Subtract 3y from both sides

Add 12 to both sides

Rearrange:

---- This is equivalent to the given equation;

Multiply both sides of the above equation by -4

 ---- This is also equivalent to the given equation;

From the list of given options, only these two are equivalent to

Step-by-step explanation:

Write the following as an algebraic expression. Subtract 6X +4 from 4X -14.

Answers

___________________________________

Hey!!!

Here's your answer:

4x-14-(6x+4)

=4x-14-6x-4

=4x-6x-14-4

=-2x-18

Hope it helps..

Good luck on your assignment_

________________________________

Answer:

[tex]= - 2x - 18 \\ = - 2(x + 9) \\ [/tex]

Step-by-step explanation:

[tex]4x - 14 - (6x + 4) \\ 4x - 14 - 6x - 4 \\ 4x - 6x - 14 - 4 \\ = - 2x - 18 \\ = - 2(x + 9)[/tex]

hope this helps

brainliest appreciated

good luck! have a nice day!

#stay safe#

Evaluate the following expression.
5-1
50

Answers

Step-by-step explanation:

Hope this is correct

Hope it helps you

What is the range of the function shown in this table?
х 3 4 5 6 y 4 4 2 5

Answers

Answer:

2,4,5

Step-by-step explanation:

Do not repeat numbers, u need to put them in order from least to greatest, and range is for the y

1a) What is the side length of the following square? *


Answers

Answer:

4 unit cubes

Step-by-step explanation:

Answer:

Exact: 2sqrt(5)

Approximate: 4.472

Step-by-step explanation:

The side of the square is the hypotenuse of a right triangle with legs of lengths 2 and 4.

c^2 = a^2 + b^2

c^2 = 2^2 + 4^2

c^2 = 4 + 16

c^2 = 20

c = sqrt(20)

c = sqrt(4 * 5)

c = 2sqrt(5) = 4.472

square root of x²-6x+9 if x is greater than or equal 3​

Answers

Answer:

x-3

Step-by-step explanation:

x²-6x+9 is equal to (x-3)²

The square root of any term that is positive is equal to the absolute value of the term. If x is greater or equal to 3, it makes the term positive.

So the root of x²-6x+9 is x-3  

I need help, what is 1/4 x 5.

Answers

Answer: it would be 1.25 since 1/4 is a fraction

1st 1/4 x 5/1

2nd 1+4 =5  keep the denominator

so the final product would be 5/4 or 1.25

Solution of expression 1/4 × 5 is 1.25

What is division?

Division is an operation that represents the basic idea of repeated subtraction of the same number. It is inverse of multiplication operation.

Given expression

1/4 × 5

= 5/4

= 1.25

Hence, 1.25 is solution of given expression.

Learn more about division here:

https://brainly.com/question/2273245

#SPJ5

4a. Classify the triangle below: 1st
name - a. Scalene b. Isosceles c.
Equilateral. 2nd name - a. Acute b.
Obtuse c. Right
4.8
4.8
45°
45°
6.8

Answers

Answer:

Right isosceles

Step-by-step explanation:

We have a right angle so the triangle is a right triangle

We have two sides that are equal so it is an isosceles triangle

Other Questions
What value of b will cause the system to have an infinite number of solutions?A system of equations. y equals 6 x plus b. negative 3 x plus StartFraction one-half EndFraction y equals negative 3.A coordinate grid with a line labeled negative 3 x plus StartFraction one-half EndFraction y equals negative 3 and passes through the points (1, 0) and (0, negative 6).-6-336 Which numbers are solutions of the inequality below? (Select all that apply.)x 2 < 8a) 6b) 6c) 4d) 8 Harry owns a Cadillac and a Porsche. Ryan has always wanted a Porsche and knows Harry owns one. Harry decides to sell his Cadillac and buy a BMW. A mutual friend of Ryan and Harry tells Ryan, "Harry's selling his car." Thinking Harry is selling the Porsche (he does not know he also has a Cadillac), Ryan calls Harry and says, "I'll give you $9,500 for your car." Harry, thinking Ryan is talking about the Cadillac, says, "You've got a deal." On what grounds is the above agreement open for rescission PLS HELP!!! Which of the following statements best describes the level of development found in sub-Saharan Africa, as a region? A. Most countries have higher than average development. B. Most countries are considered average with regard to development. C. Every nation in the bottom ten in development is located in Africa. D. Although many countries have low levels of development, several countries have higher than average development. Please select the best answer from the choices provided What principle in the Constitution limits the power of each branch of government so theyare all equal?A)Separation of Powers principleB)Equal Powers principleC)Checks and Balances principleD)All of the above PLZZZ HELP WILL GIVE BRAINLIEST!!! Read the paragraph.Violence in video games is essentially to blame for violence in our society. When children are bombarded with monstrous images, they begin to think that these types of actions are normal or acceptable. Children and teenagers are spending excessive numbers of hours playing video games, and they may begin to use them as a guideline for how to act and behave. Even if they do not perform violent actions, they may become less sensitive to the thoughts and feelings of others because of what they see reflected in these games.What effect does the word bombarded have on the paragraph?It emphasizes the authors belief that violent video games are filled with excessive images of violence.It suggests that the author is opposed to all types of video games that contain any hint of violence.It reflects the authors view that children and teenagers play violent video games for far too many hours.It shows that the author blames all violence in the world on repeated exposure to violent video games. What does this suggest about Whitmans overall style in the poem? A layer of ethyl alcohol (n = 1.361) is on top of water (n = 1.333). To the nearest degree, at what angle relative to the normal to the interface of the two liquids is light totally reflected? a. 78 degree b. 88 degree c. 68 degree d. 49 degree e. the critical angle isundefined The _________ helped scholars figure out the meaning of the hieroglyphs of ancient Egypt. The junior class sells tickets to a talent show to raise money. Each ticket sells for $8. How much money do they raise? what is the Performance Evaluation Tests on athletes ? A rectangle with a length of x + 5 has a perimeter of 4x + 14.1. Write the expression for the width of the rectangle in terms of x.Help plsss How many triangles??? Which word describes a triangle with three angles, if each angle measures less than 90? Please help What is the inverse of g(x) =X +8 Plzzzzzz helppppWhat information is missing but is needed to solve this problem? The community theater staged performances on Friday, Saturday, and Sunday. There were 357 people at Friday's performance and 422 at Sunday's performance. How many people attended Saturday's performance?A)the number of people at Friday's, Saturday's, and Sunday's performances combinedB)the number of people at Friday's and Sunday's performances combinedC)the difference between the number of people at Friday's and Sunday's performancesD)the average of the number of people at Friday's and Sunday's performances which 3 sticks should he use (theres a picture of the problem) which country was the first to send explorers to the americas A. 1/2B. 2C. 1D. -2 Please help! Correct answer only, please!Given matrix A and B both have dimensions 2 x 2 and are the inverse of one another what should be the following product?A BA.B.C.D.