Someone plzzzzz help meee

Answer:

[tex]\mathbf{\iiint_E E \sqrt{x^2+y^2} \ dV =\dfrac{81 \ \pi}{80}}[/tex]

Step-by-step explanation:

The Cylindrical coordinates are:

x = rcosθ, y = rsinθ and z = z

From the question, on the xy-plane;

[tex]9 -16 (x^2 + y^2) = 0 \\ \\ 16 (x^2 + y^2) = 9 \\ \\ x^2+y^2 = \dfrac{9}{16}[/tex]

[tex]x^2+y^2 = (\dfrac{3}{4})^2[/tex]

where:

0 ≤ r ≤ [tex]\dfrac{3}{4}[/tex] and 0 ≤ θ ≤ 2π

∴

[tex]\iiint_E E \sqrt{x^2+y^2} \ dV = \int^{2 \pi}_{0} \int ^{\dfrac{3}{4}}_{0} \int ^{9-16r^2}_{0} \ r \times rdzdrd \theta[/tex]

[tex]\iiint_E E \sqrt{x^2+y^2} \ dV = \int^{2 \pi}_{0} \int ^{\dfrac{3}{4}}_{0} r^2 z|^{z= 9-16r^2}_{z=0} \ \ \ drd \theta[/tex]

[tex]\iiint_E E \sqrt{x^2+y^2} \ dV = \int^{2 \pi}_{0} \int ^{\dfrac{3}{4}}_{0} r^2 ( 9-16r^2}) \ drd \theta[/tex]

[tex]\iiint_E E \sqrt{x^2+y^2} \ dV = \int^{2 \pi}_{0} \int ^{\dfrac{3}{4}}_{0} ( 9r^2-16r^4}) \ drd \theta[/tex]

[tex]\iiint_E E \sqrt{x^2+y^2} \ dV = \int^{2 \pi}_{0} ( \dfrac{9r^3}{3}-\dfrac{16r^5}{5}})|^{\dfrac{3}{4}}_{0} \ drd \theta[/tex]

[tex]\iiint_E E \sqrt{x^2+y^2} \ dV = \int^{2 \pi}_{0} ( 3r^3}-\dfrac{16r^5}{5}})|^{\dfrac{3}{4}}_{0} \ drd \theta[/tex]

[tex]\iiint_E E \sqrt{x^2+y^2} \ dV = \int^{2 \pi}_{0} ( 3(\dfrac{3}{4})^3}-\dfrac{16(\dfrac{3}{4})^5}{5}}) d \theta[/tex]

[tex]\iiint_E E \sqrt{x^2+y^2} \ dV =( 3(\dfrac{3}{4})^3}-\dfrac{16(\dfrac{3}{4})^5}{5}}) \theta |^{2 \pi}_{0}[/tex]

[tex]\iiint_E E \sqrt{x^2+y^2} \ dV =( 3(\dfrac{3}{4})^3}-\dfrac{16(\dfrac{3}{4})^5}{5}})2 \pi[/tex]

[tex]\iiint_E E \sqrt{x^2+y^2} \ dV =(\dfrac{81}{64}}-\dfrac{243}{320}})2 \pi[/tex]

[tex]\iiint_E E \sqrt{x^2+y^2} \ dV =(\dfrac{81}{160}})2 \pi[/tex]

[tex]\mathbf{\iiint_E E \sqrt{x^2+y^2} \ dV =\dfrac{81 \ \pi}{80}}[/tex]

Answer:

x- intercept is 6 y- intercept is -18

Step-by-step explanation:

Just use the graph, this graph is hard to get the answer but you just have to estimate.

Answer:

Angle [tex]AEC=80[/tex]°

Step-by-step explanation:

Answer:to be good at ratios you must simply look at the numbers and count them in the order that the question asks for

Step-by-step explanation:example 4:2 :::: ;; there are 4 : and 2 ;

Answer:

$1.26 or $1.27 depending on whether you round up or down. The number in the thousandths is an 8 though

Step-by-step explanation:

You would divide 3.05 by itself to get one pound

and then 3.87 by 3.05. You have to divide both numbers so you get the number for one pound.

3.87÷3.05=1.268852459

Round up or down depending on what your teacher would want you to do so that the decimal is in the hundreths like money.

Answer:

n=2

Step-by-step explanation:

(6n-7)+(8n+2)=23

14n-5=23

14n=28

n=2

Answer: C) 2 dimensions; flat surface of length and width, but no depth

One way to think of a plane is to think of a flat sheet of paper that extends infinitely in all directions. The paper must be kept flat without any bends.

The statement that describes the dimensions of a plane is (c) a plane has two dimensions because it is a flat surface that has length and width but no depth.

To understand what a plane is, take a look at a flat surface such that:

Notice that the above surfaces have just two dimensions (horizontal and vertical).

This is so because they are flat surfaces, and they have no heights

Hence, the statement that describes the dimensions of a plane is (c)

Read more about planes at:

https://brainly.com/question/13459927

Answer:

total stick she has = 9*4 = 36

6 sticker is need in 1 page

so page required for 36 stickers = 36/6 = 6pages

Step-by-step explanation:

Answer:

ndjdjd sjsjns sjsjns snsjsbs sbnb hi x xnxnxx bz

Step-by-step explanation:

d

Answer: FALSE

Step-by-step explanation:

Answer:

ion know

Step-by-step explanation:

Answer:

see below

Step-by-step explanation:

[tex](\frac{7}{2} )^{4} =\frac{7^4}{2^4}=\frac{2401}{16}[/tex]

[tex](7*2^3)^3=7^3*2^{3*3}=343*2^9=343*512=175616[/tex]

[tex](7^2)(7^2)=7^{2+2}=7^{4}=2401[/tex]

[tex](7^2)(7)^0=7^{2+0}=7^2=49[/tex]

[tex](\frac{7}{2}) ^{-4}=\frac{7^{-4}}{2^{-4}}=\frac{2^{4}}{7^4} =\frac{16}{2401}[/tex]

[tex]\frac{7^6}{7^3} =7^{6-3}=7^{3}=343[/tex]

i don't know if you need all the numbers if you don't copy till when it has the exponents

Answer:

Step-by-step explanation:

A solution is any value of a variable that makes the specified equation true. A solution set is the set of all variables that makes the equation true. The solution set of 2y + 6 = 14 is {4}, because 2(4) + 6 = 14.

Answer:

Solution

Step-by-step explanation:

To make the equation true, you need to have proof that it is correct. Therefore, a solution.

Answer:

When a ratio is written in fraction form, the fraction should be simplified. If it is an improper fraction, we do not change it to a mixed number. Because a ratio compares two quantities, we would leave a ratio as 41 instead of simplifying it to 4 so that we can see the two parts of the ratio.

Answer:

6 3/10.

Step-by-step explanation:

4 1/5 = 21/5

21/5 / 2/3

=21/5 * 3/2

= 63/ 10

=  6 3/10.

Answer:

21

Step-by-step explanation:

8 * 2 = 16

5 * 2 = 10

68 - 16 = 52 - 10 = 42.

The perimeter of the square is 42.

42 / 4 = 10.5. 10.5 is the length of a side.

10.5 * 2 = 21.

Answer:

70.4 is 80% of 88

Answer:

I need that answer too

Step-by-step explanation:

Answer:[tex]2s^{2} +11s+15[/tex]

Step-by-step explanation:

lenght of the pool = 2s+5

width of the pool= s+3

Area= [tex]l*w[/tex]

Just substitute the l and w

Area= [tex](2s+5)(s+3)[/tex]

=[tex]2s^{2}+5s+6s+15[/tex]

=[tex]2s^{2} +11s+15[/tex]

Answer:

true

i just anwwsered this one in my lessons

Answer:

measure k is also 50 degrees

Step-by-step explanation:

Odds against = failures / successes

Probability = successes / (successes + failures)

0.21 = cats / (cats + no cats)

1 / 0.21 = (cats + no cats) / cats

4.76 = 1 + (no cats / cats)

3.76 = no cats / cats

So the odds against are 3.76 to 1.  

Answer:

(3, 4, 6, 8, 11)

Step-by-step explanation:

The complement of a set are elements of a universal set that isn't present in the given set.

The universal set is  U = {3, 4, 5, 6, 7, 8, 9, 10, 11)

[tex]\left \{ 3,4,6,8,11 \right \}[/tex]

A set is a well-defined collection of objects.

The collection of all items in a certain context or theory is known as a universal set.

The complement of a set is the set that contains all of the universal set's elements that aren't found in the provided set.

[tex]U=\left \{ 3,4,5,6,7,8,9,10,11 \right \}[/tex]

Let [tex]A=\left \{ 5,7,9,10 \right \}[/tex]

Complement of set is [tex]\left \{ 3,4,6,8,11 \right \}[/tex]

For more information:

https://brainly.com/question/2332158?referrer=searchResults

Answer:

addittional property

Step-by-step explanation:

Answer:

Step-by-step explanation:

d) 48 is a factor of 144 as 48 multiplied by 3=144

The factor of the given number 144 is 48 and this can be determined by using the definition of the factors.

Given :

Number  --  144

The following steps can be used in order to determine the factors of the given number 144:

Step 1 - Equate the given number with any variable 'x'.

[tex]x = 144[/tex]

Step 2 - Number which is multiplied to another to get the final number is known as factors.

Step 3 - So, the factors of the given number 144 is:

[tex]144=48\times 3[/tex]

Therefore, the correct option is d).

For more information, refer to the link given below:

https://brainly.com/question/6810544

Answer:

6.48

Step-by-step explanation:

Start with:

 [tex]4.88[/tex]

+ [tex]1.6[/tex]

I could understand why you may be confused, so one trick is to add a [tex]0[/tex] next to the [tex]6.[/tex]

Rewrite:

 [tex]4.88[/tex]

+ [tex]1.60[/tex]

Add.

[tex]6.48[/tex]

Answer:

1. [tex]-x \div 11 = \frac{-1}{11}x[/tex]

2. [tex]z \times -5 = -5x[/tex]

Hope this helped you!