Answer:
Step-by-step explanation:
ohhh
Answer:
A B and E all fall on the line expressed.
Step-by-step explanation:
Use cylindrical coordinates to evaluate the triple integral ∭ where E is the solid bounded by the circular paraboloid z = 9 - 16(x^2 + y^2) and the xy -plane.
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]
Find |-22| =
Pls show your work
Answer:
I think it's 22
Step-by-step explanation:
because it's inverse operations all you do is remove the negative and the barackets
Brian is planning to donate 13% of his income to charity. His weekly paycheck is $667.63. How much does Brian plan to donate?
Answer:
Brian is planning on donating $86.79.
Step-by-step explanation:
The first step is to write 13% in decimal form. We then multiply, .13 x 667.63=$86.79
how many times can 2 go into 238
Answer:
i think it is 119
Look at the factorization below. Which of the following would be a factor of 144? 144 = 3 × 4× 3× 4 a. 7 b.27 c.32 d.48
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
Please help (word problem)
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]
I need help with this geometry question
Answer:
Angle [tex]AEC=80[/tex]°
Step-by-step explanation:
How do you solve 3(2×+5)-(4×_9)
Answer: 3(2×+5)-(4×9) = -15
Step-by-step explanation:
Solve
3(4- 2)
2.
Select the correct choice below an
Answer:
6
Step-by-step explanation:
3(4-2) distribute 3
12-6
6
Use the Distributive Property to multiply 9 and 37 in your head.
What is the answer?
Answer:
The answer is 333.
Step-by-step explanation:
Using the distributive property, you can do:
9 x 30 = 270
9 x 7 = 63
270 + 63 = 233.
Then, just check with a calculator. It's correct.
Hope this helps!
Answer: 333
Step-by-step explanation:
9x(30+7) = (9x30) + (9x7)
270+63=333
How many chirps can you expect a cricket to make in 1 min when the outside temperature is 50 ° F ? ( it’s not 75)
F = n/4 + 37, for F = 50
50 = n/4 + 37
Subtract 37 from both sides
13 = n/4
Multiply both sides by 4
52 = n
Which statement about speed and/or velocity is true? an airplane was at 34500 feet in the air before it descents the airplane descends at a rate of 1725 feet/minute how long does it take for the plane to touch down on the air strip
Answer:
ndjdjd sjsjns sjsjns snsjsbs sbnb hi x xnxnxx bz
Step-by-step explanation:
d
Which statement is NOT true? Select all that apply 4.913 is less than 4.931 8.001 is greater than 8.002 5.63 is equal to 5.630 7.831 is less than 7.809 10 5 is equal to 100,000
pls help it’s due today
Answer:
ion know
Step-by-step explanation:
(6n-7)+(8n+2)=23 HELP FAST PLEASE
Answer:
n=2
Step-by-step explanation:
(6n-7)+(8n+2)=23
14n-5=23
14n=28
n=2
4x + y = 2
I need to solve the literal equation for y.
Answer: y=2−4x
Step-by-step explanation:
When solving for y in this problem(4x+y=2) we need to get y by itself in the equation. To do this we need to move 4x over to the right side of the equation. To do this we subtract, 4x from both sides of the equation.
Find the sum. 4.88 + 1.6 *
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]
Which best describes the dimensions of a plane?
A plane has zero dimensions because it represents a location on the coordinate plane.
A plane has one dimension because it is made up of an infinite number of points.
A plane has two dimensions because it is a flat surface that has length and width but no depth.
A plane has three dimensions because it is made up of exactly three noncollinear points.
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:
PaperTop of a tableA white or black boardEtc.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
odds against a randomly chosen household having a cat if the probability of the event that a randomly chosen household has a cat is .21
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.
what does ="" mean ?
PLEASE GIVE BRAINLIST
equal
quotation marks
HOPE THIS HELPED
State the name of the property illustrated. (x + 7) + [-(x + 7)] = 0
Answer:
addittional property
Step-by-step explanation:
Explain howto use friendly percents to find 35% of 80
Answer:
28
Step-by-step explanation:
35% × 80 =
(35 ÷ 100) × 80 =
(35 × 80) ÷ 100 =
2,800 ÷ 100 =
28
I hope this helps :)
Answer:
You would have to add two different percents to get to 35. You would need to add 25% and 10%. So, I would divided 80 by 4, which gets me 20, and divided 80 by 10, which gets me 8. If you add 20 and 8 together, that gets you 28. Your answer is 28.
Not sample answer, but correct
Help...giving 20 points (number 3 nothing else)
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
Sarah plans to sell decorative signs at an upcoming craft market. If it costs her $3.50 to make each sign, and she paid a one-time fee of $185 to rent a booth at the market. If Sarah sells each sign for $15.75, how many signs will she need to sell for her expenses to be no more than her earnings?
Answer:
I need that answer too
Step-by-step explanation:
1. -x divided by 11
2. z multiplied by - 5
working pls
Answer:
1. [tex]-x \div 11 = \frac{-1}{11}x[/tex]
2. [tex]z \times -5 = -5x[/tex]
Hope this helped you!
(15.x + 79)
(5x + 61)
Answer:
A) 15x +79 = z
B) 15x +79 + 5x + 61 = 180
20x + 140 = 180
20x = 40
x = 2
Then using equation A)
A) 15 * 2 + 79 = z
30 + 79 =z
z = 109
Step-by-step explanation:
can someone help me
Answer:
measure k is also 50 degrees
Use the graph to estimate the x- and y-intercepts.
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.
How to be good at ratios
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 ;
If two opposite sides of a square are increased by 8 meters and the other sides are decreased by 5 meters, the area of the rectangle that is formed is 68 square meters. Find the area of the original square.
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.