best answer gets brainliest

Answer:

[tex]\boxed{-3\left(\sqrt{2}-1\right)}[/tex]

Step-by-step explanation:

[tex]\left(3\sqrt{3-2\sqrt{2}}\right)\left(\sqrt{3}-2\right)\left(\sqrt{3}+2\right)[/tex]

[tex]-3\sqrt{3-2\sqrt{2}}\left(-1\right)[/tex]

[tex]-3\sqrt{3-2\sqrt{2}}[/tex]

[tex]-3\left(\sqrt{2}-1\right)[/tex]

[tex]-3\left(\sqrt{2}-1\right)[/tex]

Answer:

Step-by-step explanation:

[tex](a + b)(a -b) = a^{2}-b^{2}\\\\\\a = \sqrt{3} \ & \ b = 2\\\\(\sqrt{3}-2)(\sqrt{3}+2)=(\sqrt{3})^{2}-2^{2} \\\\ = 3 - 4\\\\= -1[/tex]

[tex](3\sqrt{3-2\sqrt{2}})(\sqrt{3}-2)(\sqrt{3}+2)=(3\sqrt{3-2\sqrt{2}})*(-1)\\ \ = (-3)\sqrt{3-2\sqrt{2}}[/tex]

Answer:

I couldn't find a graph with the shape, so I had to use points, sorry.

To reflect a shape, reverse its direction up or down and put it on the same points, positive or negative, accordingly. Reflections usually represent a function.

Answer:

f(2) = -3

Step-by-step explanation:

Find f(2) given f(x) = 2x^2 + 5x - 21​

Since on the left side, x is replaced by 2, on the right side, x should also be replaced by 2.

f2 = 2(2)² + 5(2) - 21

2 x 2² = 2 x 4 = 8

5 x 2 = 10

8 + 10 = 18

18 - 21 = ?

-(21 - 18 = 3)

-21 + 18 = -3

f(2) = -3

The volume of cup A is 1570.8 cm³ while the volume of cup B is 6283 cm³

Volume is the amount of space occupied by a three dimensional object or figure.

The cup has the shape of a cylinder, the volume is:

Volume = π * radius² * height

For cup A:

Volume = π * (10/2)² * 20 = 1570.8 cm³

Let each punch be 1 cm³, the number of cups needed = 1570.8 cm³ / 1 cm³ = 1571

For cup B:

Volume = π * (20/2)² * 20 = 6283 cm³

Let each punch be 1 cm³, the number of cups needed = 6283 cm³ / 1 cm³ = 6283

The volume of cup A is 1570.8 cm³ while the volume of cup B is 6283 cm³

Find out more on Volume at: https://brainly.com/question/1972490

Answer:

The domain of a function is the set of values that we are allowed to plug into our function. The Range is the difference between the lowest and highest values

Step-by-step explanation:

Answer:

Step-by-step explanation:

1) (y - 1)²

   1. y*y =y²

   2. 2(y)(-1)= -2y

   3 . (1)(1) = 1

(y-1)² = y² - 2y + 1

2) (6y + 3)²

    1. (6y)(6y) = 36y²

    2. (2)(6y)(3)=36y

    3. (3)(3)   = 9

(6y + 3)² = 36y² + 36y + 9

3) (4x - y)²

    1. (4x)(4x) = 16x²

    2. (2)(4x)(-y) = -8xy

    3. (y)(y) = y²

(4x -y)² = 16x² - 8xy + y²

4) (y - 12)²

 1.(y)(y) = y²

 2. (2)(y)(-12) = -24y

 3. (12)(12) = 144

(y - 12)² = y² - 24y + 144

[tex](x + \dfrac{1}{3})^{2}\\\\ 1. (x)(x) =x^{2}\\\\ 2. (2)(x)(\dfrac{1}{3})=\dfrac{2}{3}x\\\\\\ 3. (\dfrac{1}{3})(\dfrac{1}{3})=\dfrac{1}{9}\\\\\\(x +\dfrac{1}{3})^{2}=x^{2}+\dfrac{2}{3}x+\dfrac{1}{9}[/tex]

6) (ab +c)²

   1.(ab)(ab) = a²b²

   2. (2)(ab)(c)=2abc

   3. (c)(c)=c²

(ab+c)² = a²b² + 2abc + c²

Answer:

Can you delete an answer

Answer:

9(x+7)

Distribute the 9 by multiplying it to x and 7

9x+63

The area of the extension is 63.

The gardener added 9 and 7 instead of multiplying.

Answer:

First: 3x^25/y^12 z^7

Second: x^6 z^12/6

Step-by-step explanation:

Answer:

see image

Step-by-step explanation:

Answer:

2n/19

Step-by-step explanation:

2 times a number, n= 2n

divided by 19 2n/19

Let's imagine all the tickets were for children.

The fees collected would've been 342 x 1.25 = $427.5

That is 1337 - 427.5 = $909.5 less than the actual fees.

Everytime we switch 1 children ticket to an adult ticket, the gap goes down 6.60 - 1.25 = 5.35

For example, if 341 tickets were children tickets, and 1 is adult, the gap go from 909.5 to 904.15.

We do this until the gap becomes 0... So, there are 909.5 : 5.35 = 170 adult tickets

And there are 342 - 170 = 172 children tickets


Recheck : 172 x 1.25 + 170 x 6.6 = 215 + 1122 = 1337.

Considering the given angle and the given formula, it is found that the percentage error for an angle of 0.02 radians is of 0.0067%.

For an angle [tex]\theta[/tex], it is given by the following formula:

[tex]P = 100\frac{|\sin{\theta} - \theta|}{\sin{\theta}}[/tex]

In this problem, the angle is of [tex]\theta = 0.02[/tex], hence:

[tex]P = 100\frac{|\sin{0.02} - 0.02|}{\sin{0.02}}[/tex]

[tex]P = 0.0067[/tex]

The percentage error for an angle of 0.02 radians is of 0.0067%.

More can be learned about percent error at https://brainly.com/question/25224978

Answer:

14.4 cm

Step-by-step explanation:

Answer:

A. 4 + 1/10 + 1/10 + 1/10

Step-by-step explanation:

4 + 1/10 + 1/10 + 1/10 = 4 3/10

Answer:

2(3y+4)(x2−5)

Step-by-step explanation:

Add and subtract the second term to the expression and factor by grouping.

2(3y+4)(x2−5)

Answer:

2(3y + 4) (x^2 - 5)

Step-by-step explanation:

Add and subtract the second term to the expression and factor by grouping.

Answer:

60%

Step-by-step explanation:

multiply the numerator and denominator by 20 so that the denominator is 100:

[tex]\implies \dfrac35=\dfrac{3\times20}{5\times20}=\dfrac{60}{100}=60 \%[/tex]

Answer:

3/5 As a percent is 60%

To convert 3/5 to fraction

Therefore, the solution is 60%.

Answer:

Yes. This is correct.

Step-by-step explanation:

We can use an online graphing program and we see that your equation is correct! Good job!

Answer:

Step-by-step explanation:

Use the formula for area of a circle

A = [tex]\pi r^{2}[/tex]

The diameter is 8ft, if there was only a line from the middle to the edge of the circle, then it would be radius

The radius is half the diameter so divide 8 by two and you get the radius

Plug in the radius into the formula

A = [tex](4ft)^{2} \pi[/tex]

the parenthesis indicate you aren't only squaring the ft, but also the 4

4ft * 4ft = 16[tex]ft^{2}[/tex]

(remember you are also multiplying the unit, in this case feet)

A = [tex]16ft^{2} \pi[/tex]

there aren't parenthesis here, meaning you aren't squaring the 16

A = 50.24[tex]ft^{2}[/tex]

[tex]\\ \rm\Rrightarrow V=\pi r^2h[/tex]

[tex]\\ \rm\Rrightarrow h=\dfrac{V}{\pi r^2}[/tex]

[tex]\\ \rm\Rrightarrow h=\dfrac{226.2}{3.14(9)}[/tex]

[tex]\\ \rm\Rrightarrow h=226.2/28.26[/tex]

[tex]\\ \rm\Rrightarrow h=8cm[/tex]

[tex] \quad\rule{300pt}{1.5pt}\quad[/tex]

Information provided:

Volume of cylinder is given by:

[tex] \qquad\quad\bull~ {\boxed {\large\mathfrak {V = \pi r^2 h } }}[/tex]

‎‎ㅤ(We have to find the height of cylinder)

Ⲧⲏⲉⲅⲉ⳨ⲟⲅⲉ:

[tex] \quad\dashrightarrow\quad \sf {V = \pi r^2 h }[/tex]

[tex] \quad\dashrightarrow\quad \sf { 226.2 = 3.14 \times 3^2 \times h}[/tex]

[tex] \quad\dashrightarrow\quad \sf { h = \dfrac{226.2}{3.14\times 9}}[/tex]

[tex] \quad\dashrightarrow\quad \sf {h = \cancel{\dfrac{226.2}{28.26}} }[/tex]

[tex] \quad\dashrightarrow\quad \sf {h = 8.004 }[/tex]

[tex] \quad\dashrightarrow\quad {\pmb{\sf { h = 8 cm}}}[/tex]

‎ㅤ‎ㅤ‎ㅤ‎ㅤ~Hence, the height of given cylinder is 8cm.

[tex]\underline{\rule{300pt}{2pt}} [/tex]

Answer:

175/48 or 3.64

Step-by-step explanation:

■ Refer to the attachment.

Hope it helps ⚜

Answer:

27

Step-by-step explanation:

the picture below is your work!

Answer:

O. -1

Step-by-step explanation:

    We can look at the graph given to see the value of -3.

When h(x) = -3, it means that the y value is equal to -3. We see that, on the graph, when y = -3, x = -1.

Answer:

A, C, E

Step-by-step explanation:

Only letters T, A, and X on the triangle can be used to describe it, regardless of the order they are in.

Answer:

4 mins

Step-by-step explanation:

I guess not to sure ask teacher

Sam eats the melon in 0.2 minutes.

John eats the melon in 2.2 minutes.

x - y = 2 equation 1

x + y = 2.4 equation 2

Where:

x = minutes John eats the melon

y = minutes Sam eats the melon

Add equation 1 and equation 2 together

2x = 4.4

Divide both sides by 2

x = 2.2

Substitute for x in equation 1

2.2 - y = 2

y = 2.2  2

y = 0.2 minutes

To learn more about simultaneous equations, please check: https://brainly.com/question/25875552

Answer:

x=2

Step-by-step explanation: 1.2x-5.2=-2.4x+2. First, you add 2.4x to 1.2x to get x isolated. So now it's 3.6x-5.2=2. Then add 5.2 to 2 to isolate x. Now you have 3.6x=7.2 now you divide 7.2 by 3.6 to get x=2.

Answer:

x=2

Step-by-step explanation:

1.2x-5.2=-2.4x+2

multiply 10

12x-52=-24x+20

refine and add 52

12x=-24x+72

add 24x

36x=72

divide 36

x=2

Solution:

We know that:

Finding the radius of the cylindrical water tank:

[tex]\rightarrow Diameter = 2(Radius)[/tex]

[tex]\rightarrow Radius = \frac{Diameter}{2} = \frac{12}{2} = 6 \ feet[/tex]

Now, let's find the volume of the cylinder by substituting the radius.

Finding the volume of the cylinder:

[tex]\rightarrow \tex V \tex o \tex l \tex u \tex m \tex e\tex \ \tex of \tex \ c \tex y \tex l \tex i \tex n \tex d \tex e \tex r = \pi r^{2} h[/tex]

[tex]\rightarrow \tex V \tex o \tex l \tex u \tex m \tex e\tex \ \tex of \tex \ c \tex y \tex l \tex i \tex n \tex d \tex e \tex r = (3.14)( 6^{2})( 17)[/tex]

[tex]\rightarrow \tex V \tex o \tex l \tex u \tex m \tex e\tex \ \tex of \tex \ c \tex y \tex l \tex i \tex n \tex d \tex e \tex r = (3.14)( 36)( 17)[/tex]

[tex]\rightarrow \tex V \tex o \tex l \tex u \tex m \tex e\tex \ \tex of \tex \ c \tex y \tex l \tex i \tex n \tex d \tex e \tex r = 1921.68 \ feet^{3}[/tex]

Rounding to the nearest whole number:

[tex]\rightarrow \tex V \tex o \tex l \tex u \tex m \tex e\tex \ \tex of \tex \ c \tex y \tex l \tex i \tex n \tex d \tex e \tex r = 1921.68 \ feet^{3}[/tex]

[tex]\rightarrow \tex V \tex o \tex l \tex u \tex m \tex e\tex \ \tex of \tex \ c \tex y \tex l \tex i \tex n \tex d \tex e \tex r = 1922 \ feet^{3} \ (Rounded \ to \ nearest \ whole \ number)[/tex]  

Thus, the volume of the cylinder is 1922 feet³ (Rounded).

[tex]\\ \rm\rightarrowtail V=\pi r^2h[/tex]

[tex]\\ \rm\rightarrowtail V=\pi (6)^2(17)[/tex]

[tex]\\ \rm\rightarrowtail V=36(17)\pi [/tex]

[tex]\\ \rm\rightarrowtail V=612\pi[/tex]

[tex]\\ \rm\rightarrowtail V=1921.68ft^3[/tex]

Answer:

Roughly 1.46 repeating

Step-by-step explanation:

Substitute the 5280 for the miles and there are 3600 seconds in an hour. divide 5280 by 3600 and it will give you a decimal.

answer in your own opinion

Subtract the tips from total earned:

400-253 = 147

Now Divide by hours worked:

147/28 = 5.25

Hourly rate is $5.25

Answer:

1/6

Step-by-step explanation:

There are six sides to a dice, out of the sides one is marked 6.

So there is 1 out of the 6 sides that are 6.