Answer:
-8x - 7
Step-by-step explanation:
-5 ( 3 - x ) + ( 2x - 7 )
-15 + 5x + 2x - 7
-10x + 2x - 7
-8x - 7
Compute the flux of F⃗ =3(x+z)i⃗ +2j⃗ +3zk⃗ through the surface S given by y=x^2+z^2, with 0≤y≤16, x≥0, z≥0, oriented toward the xz-plane
It seems there is an error in the given vector field F⃗ = 3(x+z)i⃗ + 2j⃗ + 3zk⃗ as it does not have a component along the y-axis. Please double-check the vector field or provide the correct vector field to proceed with the calculation.
To compute the flux of the vector field F⃗ = 3(x+z)i⃗ + 2j⃗ + 3zk⃗ through the surface S given by y=x^2+z^2, with 0≤y≤16, x≥0, z≥0, oriented toward the xz-plane, we can use the surface integral.
The surface integral of a vector field F⃗ over a surface S is given by the formula:
∬S F⃗ · dS = ∬S F⃗ · (n⃗ dS)
where F⃗ is the vector field, dS is the differential area vector, and n⃗ is the unit normal vector to the surface.
In this case, the surface S is given by y=x^2+z^2, with 0≤y≤16, x≥0, z≥0. We can parameterize this surface as:
r(x, z) = xi⃗ + yj⃗ + zk⃗ = xi⃗ + (x^2+z^2)j⃗ + zk⃗
To find the normal vector n⃗ to the surface, we can take the cross product of the partial derivatives of r(x, z) with respect to x and z:
n⃗ = ∂r/∂x × ∂r/∂z
= (1i⃗ + 2xj⃗) × (0i⃗ + 2zj⃗)
= -2xz i⃗ + 2zj⃗ + 2xk⃗
Now, we can calculate the flux:
∬S F⃗ · (n⃗ dS) = ∬S (3(x+z)i⃗ + 2j⃗ + 3zk⃗) · (-2xz i⃗ + 2zj⃗ + 2xk⃗) dS
= ∬S (-6x^2z - 4xz + 6xz^2 + 6xz) dS
= ∬S (-6x^2z + 2xz + 6xz^2) dS
To evaluate this integral, we need to determine the limits of integration for x, y, and z.
Since the surface is defined by 0≤y≤16, x≥0, z≥0, we have:
0 ≤ y = x^2 + z^2 ≤ 16
Simplifying the inequality, we get:
0 ≤ x^2 + z^2 ≤ 16
From this, we can see that x and z both range from 0 to 4.
Now, we can evaluate the flux:
∬S (-6x^2z + 2xz + 6xz^2) dS = ∫∫ (-6x^2z + 2xz + 6xz^2) dA
where dA is the differential area.
Integrating over the limits 0 ≤ x ≤ 4 and 0 ≤ z ≤ 4, we can calculate the flux.
However, it seems there is an error in the given vector field F⃗ = 3(x+z)i⃗ + 2j⃗ + 3zk⃗ as it does not have a component along the y-axis. Please double-check the vector field or provide the correct vector field to proceed with the calculation.
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A new car is purchased for 23700 dollars. The value of the car depreciates at 13.5% per year. What will the value of the car be, to the nearest cent, after 10 years?
After 10 years, the value of the car will be approximately $5557.88 to the nearest cent.
To calculate the value of the car after 10 years, we can use the formula for exponential decay: V = P(1 - r)^t, where V is the final value, P is the initial value, r is the decay rate (as a decimal), and t is the time in years.
In this case, the initial value of the car is $23,700 and the decay rate is 13.5% per year, which is equivalent to 0.135 as a decimal. We want to find the value after 10 years, so t = 10.
Plugging these values into the formula, we have:
V = $23,700 x (1 - 0.135)¹⁰
Calculating the exponent first, we get:
V = $23,700 x (0.865)¹⁰
Now, evaluating (0.865)¹⁰, we find:
V ≈ $5557.88
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true or false correlation between y and x has the same number but opposite sign as the correlation between x and y.
Answer:
true
Step-by-step explanation:
A correlation is symmetrical;x is as correlated with y as y is with x. The Pearson product-moment correlation can be understood within a regression context,however.
chosee a number between 49 and 95 that is a multiple of 5,6,10?
Answer:
60
please mark brainliest ♡♡
31 9. To fence a shamba it requires 3 Men Working 8 hource a day for 5 days. How long will if take Working 6 hours a day if they work at (3MKS) the same rate ?
It will take approximately 6.67 days for the 3 men to fence the shamba if they work 6 hours a day at the same rate.
Let's first understand the given information:
3 men work for 8 hours a day
They work for 5 days to complete the fencing
We need to find out how long it will take if they work 6 hours a day at the same rate
Calculate the total man-hours needed to complete the fencing.
Total man-hours = (Number of men) x (Hours per day) x (Days)
Total man-hours = 3 men x 8 hours/day x 5 days = 120 man-hours
Calculate the number of man-hours completed per day when working 6 hours a day.
Man-hours per day = (Number of men) x (Hours per day)
Man-hours per day = 3 men x 6 hours/day = 18 man-hours/day
Determine how many days it will take to complete the fencing while working 6 hours a day.
Days = (Total man-hours) / (Man-hours per day)
Days = 120 man-hours / 18 man-hours/day = 6.67 days
So, it will take approximately 6.67 days for the 3 men to fence the shamba if they work 6 hours a day at the same rate.
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For f(x)=x²−3, (a) calculate f(5x) and 5f(x) and (b)f(x−2) and f(x)−f(2).
Calculate the difference quotient of f(x)=−7x²−5x+9
a.
= (5x)² - 3 = 25x² - 3
- 5f(x) = 5(x² - 3) = 5x² - 15
b.
- f(x - 2) = (x - 2)² - 3 = x² - 4x + 1
- f(x) - f(2) = (x² - 3) - (2² - 3) = x² - 3 - 1 = x² - 4
a. To calculate f(5x), we substitute 5x into the function f(x) and simplify the expression.
f(5x) = (5x)² - 3 = 25x² - 3
To calculate 5f(x), we multiply the function f(x) by 5.
5f(x) = 5(x² - 3) = 5x² - 15
b. To calculate f(x - 2), we substitute (x - 2) into the function f(x) and simplify the expression.
f(x - 2) = (x - 2)² - 3 = x² - 4x + 4 - 3 = x² - 4x + 1
To calculate f(x) - f(2), we evaluate f(x) and f(2) separately and then find their difference.
f(x) = x² - 3
f(2) = 2² - 3 = 4 - 3 = 1
f(x) - f(2) = (x² - 3) - (2² - 3) = x² - 3 - 1 = x² - 4
For the difference quotient of f(x) = -7x² - 5x + 9, we can calculate it as follows:
Difference quotient = [f(x + h) - f(x)] / h
Expanding the function and substituting into the difference quotient formula, we have:
[f(x + h) - f(x)] / h = [-7(x + h)² - 5(x + h) + 9 - (-7x² - 5x + 9)] / h
Simplifying and expanding further:
= [-7(x² + 2hx + h²) - 5x - 5h + 9 + 7x² + 5x - 9] / h
= [-7x² - 14hx - 7h² - 5x - 5h + 9 + 7x² + 5x - 9] / h
= [-14hx - 7h² - 5h] / h
= -14x - 7h - 5
The difference quotient of f(x) = -7x² - 5x + 9 is -14x - 7h - 5.
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jerry graded seven standardized tests with the following scores: 60, 74, 41, 87, 94, 79, 57 which standardized test score represents the 50th percentile? 41 57 74 79
Answer: 74
Step-by-step explanation:
Answer:
74
Step-by-step explanation:
Got it right on the test.
Use the original price and the markup to find the retail price.
Original price: $42; Markup: 7.5%
Answer:
$45.15
Step-by-step explanation:
$42*107.5%
=$45.15
PLS GIVE BRAINLIEST
Answer:
45.15
Step-by-step explanation:
Take 100% (Original Price) and add the 7.5, Aka 107.5.
Multiply the price (42) and the percent that you just got, 107.5%.
Use the percent sign!!!
The answer then should be 45.15
How do the digestive and circulatory systems interact?
Answer:
(1) Digestive System gets nutrients (good) from food and hands it over to the blood and Circulatory System then carries those nutrients where they need to go. (2) Filters out waste from food and pushes it through intestines and out the body (and you know how and where it gets out).
Step-by-step explanation:
Digestive System gets nutrients (good) from food and hands it over to the blood and Circulatory System then carries those nutrients where they need to go. (2) Filters out waste from food and pushes it through intestines and out the body (and you know how and where it gets out).
selected technologies according to recent surveys, of households have personal computers. if a random sample of households is selected, what is the probability that more than but fewer than have a personal computer? round -value calculations to decimal places and final answer to at least decimal places.
The probability that more than but fewer than have a personal computer is 0.0166.
A random sample of households is selected (N) = 172.
P = 0.6 (60% of households have personal computers).
First, we need to check the conditions of normality that Np and N(1-p) both are greater than or equal to 5.
Np = 172*0.6 = 103.2
N(1-p) = 172*0.4 = 68.8
Both the conditions are met and we can use the z table to estimate the required probabilities.
Z = (x-mean)/SD
Mean = Np = 172*0.6 = 103.2
SD = √Np(1-p) = 6.4249513617
We will use continuity correction here,
In continuity correction;
P(X>=X) = P(X>x-0.5)
P(x<=X) = P(x<x+0.5)
P(X<X) = P(X<x-0.5)
P(X>X) = P(X>X+0.5)
P(X1<X<X2) = p(x1-0.5<X<X2+0.5)
P(52<X<89)
By continuity correction,
P(51.5<X<89.5) = P(X<89.5)-P(X<51.5).
P(X<89.5)
Z = (89.5-103.2)/6.42495 = -2.13
From the z table,
P(z<-2.13) = 0.0166
P(X<51.5)
Z = (51.5-103.2)/6.42495 = -8.05
From the z table,
P(z<-8.05) = 0.0000
The required probability is 0.0166-0.0000 = 0.0166
The probability that more than but fewer than have a personal computer is 0.0166.
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Find the equation of Y+9=13
Answer:
Y = 4
Step-by-step explanation:
Y = 13 - 9Y = 4that's allA highway has a minimum speed limit of 45 miles per hour and a maximum speed limit of 70 miles per hour. Write an inequality that represents the legal driving speeds, s, in kilometers per hour.
The inequality that represents the legal driving speeds, s, in kilometers per hour is 45 >= s <= 70.
What is an inequality?It should be noted that an inequality is simply used in mathematics to show that the expression or equation aren't equal.
From the information, the highway has a minimum speed limit of 45 miles per hour and a maximum speed limit of 70 miles per hour.
Therefore, the inequality that represents the legal driving speeds is 45 >= s <= 70.
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a) Andrés construye cajas de diferente base. Utiliza poligonos regulares, la longitud de sus lados es la misma Adomna
1. Analiza la siguiente situación y realiza lo que se te pide:
el contorno de las tapas con liston dorado.
• Completa la siguiente tabla que elaboró para su presupuesto de materiales:
- Polígono
5
8
(lados)
Perimetro
24
30
36
(cm)
4
50
¿Cuántos centimetros mide cada lado de la tapa?
* Como encontraste el valor anterior?
¿Qué relación tiene el número de lados con el perimetro?
¿Cuál seria el perimetro de una figura de tres lados? amigos me pueden ayudar es importante
Respuesta:
la tapa mide 6 centimetros,sobre la tabla aumenta de 6 en 6
Explicación paso a paso:vas dividir 24 que es el valor de el perimetro entre 4 porque es la cantidad de lados al dividirlo te va a dar 6 que indica que aumenta de 6 en 6 tambien en la tabla cuando son 4 lados son 24 de perimetro y en el siguiente viene que 5 son 30 :)
ojala te ayude friend :-}
What is the ratio of the median weekly earnings of the holder of a high school diploma only to the median weekly earnings of the holder of a bachelor's degree?
The ratio of the median weekly earnings of the holder of a high school diploma only to the median weekly earnings of the holder of a bachelor's degree is approximately 0.67.
The median weekly earnings of the holder of a high school diploma only is approximately 0.67 times the median weekly earnings of the holder of a bachelor's degree. According to the Bureau of Labor Statistics in 2020, the median weekly earnings of a person with a high school diploma only was $712, while the median weekly earnings of a person with a bachelor's degree was $1,062. This indicates that the median weekly earnings of the holder of a high school diploma only is about two-thirds of the median weekly earnings of the holder of a bachelor's degree. This large discrepancy in earnings highlights the importance of higher education in ensuring a more secure and higher paying job.
$712 (High School Diploma) / $1,062 (Bachelor's Degree) = 0.67
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What is the property for the equation 20. 0 + x = x
The property demonstrated in the equation 20.0 + x = x is known as the additive identity property.
The additive identity property states that the sum of any number and zero is equal to the original number. In the given equation, the number being added to zero is represented by x. When zero is added to any number, it does not change the value of that number.
In this case, adding 20.0 to zero results in 20.0, which is then set equal to x. Since the sum of zero and x is equal to x, it confirms the additive identity property.
This property is a fundamental concept in mathematics and provides a foundation for addition operations. It allows us to add or subtract zero without altering the value of the other number involved in the operation.
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A
Given:
O HA
ZC, ZF are rt. Z's; AC= DF, BC= EF
O LA
OLL
B D.
OHL
F
E
Answer: your question is not very clear
Step-by-step explanation:
Jun Wei is a bus driver who earns $ 1600 per month while Lixin is a manager who earns $ 6800 per
month. In 2012, Jun Wei donated a total of $ 1200 to charitable organisations while Lixin donated a
total of $4500 to charitable organisations. Who donated a higher percentage of his or her annual
income to charitable organisations?
Answer:
Jun Wei donated a higher percentage than Lixin
calculate it by multiplying monthly salary by 12 then divide the total donated to total earned for both people... you Will Find 6.25 % for Jun Wei but for Lixin You Will get 5.51%
i hope this helps u :)
thank u
K
29
6x – 5
1 point
What is the value of x, in degrees?
15
в ОООО
18.22
20
2x – 3
24
(х+8
L
J
30
1 point
What is the measure of ZL?
115
93
ОООО
28
37
Answer:
1.x=20
<L=37
Step-by-step explanation:
(x+8)+(2x-3)+(6x-5)=180
x+8+2x-3+6x-5=180
9x-8+8=180
9x=180
x=180/9
x=20
<L=2x-3
<L=2*20-3
<L=40-3
<L=37
Triangle ABC is dilated with the origin as the center of the dilation. Which ordered pair could represent the image of point C (5,2) after the dilation
The ordered pair that could be the image point is (a) (2.5,1)
How to determine the ordered pair that could be the image pointFrom the question, we have the following parameters that can be used in our computation:
Point C = (5, 2)
This means that
C = (5, 2)
The point is dilated using the origin as a center of the origin
So, the image point is
C = k(5, 2)
Let k = 1/2
So, we have
C = 1/2(5, 2)
Evaluate
C' = (2.5, 1)
Hence, the ordered pair that could be the image point is (a) (2.5,1)
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Question
Triangle ABC is dilated with the origin as the center of the dilation. Which ordered pair could represent the image of point C(5, 2) after the dilation?
A (2.5,1)
B (5,−2)
C (7.5,4.5)
D (−1,−4)
. Veronica rides at an average speed of 9.2 miles per hour (mph).
Part A
Exactly how many hours does it take Veronica to ride her bike 46 miles? Show or explain all your work.
Time to ride 46 miles: ________________
Answer:
46/9.2 = 5
Step-by-step explanation:
what’s 2+5,,,,!!!!!’mmmmmmmmmwwwww
The quadrilateral below is a rhombus. Find the missing measures. Any decimal answers should be rounded to the nearest tenth.
NK =
m
NL =
m
ML =
m
JM =
m
m
A rhombus with MK = 24 m, JL = 20, ∠MJL = 50°. So, NK = 24 m, NL = 24.8 m, ML = 24.8 m, and JM = 20 m.
We need the information about the measurements or a description of the missing measures in the rhombus. We can make it MK = 24 m, JL = 20, ∠MJL = 50° for example. Since it's a rhombus, all sides are equal in length. Therefore, NK = MK = 24 m, JM = JL = 20 m, and ML = NL.
To find ML (or NL), we can use the Law of Cosines on the triangle MJL. In this case,
ML² = JM² + JL² - 2(JM)(JL)cos(∠MJL):
ML² = 20² + 20² - 2(20)(20)cos(50°)
ML² = 400 + 400 - 800cos(50°)
ML² ≈ 617.4
Taking the square root of both sides, we get ML ≈ √617.4 ≈ 24.8 m.
So, NK = 24 m, NL = 24.8 m, ML = 24.8 m, and JM = 20 m.
The complete question is The quadrilateral below is a rhombus. Given MK = 24 m, JL = 20, ∠MJL = 50°. Find NK, NL, ML, and JM. Any decimal answers should be rounded to the nearest tenth.
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In the figure below, m||n. Match the angle pairs with the
correct label for the pairs.
On solving the provided question, by properties of parallel lines we got to know that - 1 - A 2 - C 3 - B 4 - D
what is alternate exterior angles?When two or more lines cross the intersection line, alternate exterior angles result. These angles are created on a number of sides outside the transverse lines. Any two parallel lines that cross one another create two angles with the horizontal line. In the area between the parallel lines, interior angles are formed, while alternate exterior angles are formed in the area outside the parallel lines.
Matches are -
1 - A
2 - C
3 - B
4 - D
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if Dakota earned 7.50 in interest in Account A and $20.00 in interest in Account B after 15 months If the simple interest rate is 3% for Account A and 4% % for Account B, which account has the greater principal? Explain.
Answer:
keeping in mind that 21 months is more than a year, since there are 12 months in a year, then 21 months is really 21/12 years.
Step-by-step explanation:
(picture)
so, clearly, you can see who's greater.
Let p(n) be the number of primes less than n. What is p(50)
Answer:
There are 15 prime numbers less than 50
Step-by-step explanation:
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53
diamonds are incorporated in solidified magma called _______ that originates deep within earth.
Diamonds are incorporated in solidified magma called kimberlite, which originates deep within the Earth.
Kimberlite is a volcanic rock formed in the Earth's mantle and brought to the surface through volcanic eruptions. The high pressure and temperature conditions in the mantle allow for the formation of diamonds from carbon atoms. When kimberlite eruptions occur, they transport diamonds and other mantle-derived materials to the Earth's surface, where they eventually cool and solidify.
The discovery of diamonds in kimberlite pipes has played a significant role in the development of the diamond mining industry. These pipes serve as primary sources for diamond extraction and are found in various locations around the world, including South Africa, Russia, and Canada. The study of kimberlites also provides valuable information about the Earth's mantle composition and its geodynamic processes. Overall, the relationship between diamonds and kimberlite is an essential aspect of both the gemstone industry and the study of the Earth's interior.
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Find the area of parallelogram with base b and height h
b=82.cm
h=16.6cm
area= b*h
82.* 16.6
area= 1361.2 since i dont know the number after the decimal in 82. that was the only answer i could give
Find all the missing elements:
15
38°
42°
A
C С
b
Answer:
m∠B = 100°
a = 4.6
b = 7.36
Step-by-step explanation:
By applying sine rule in the given triangle,
\(\frac{\text{sin(A)}}{a}= \frac{\text{sin(B)}}{b}= \frac{\text{sin(C)}}{c}\)
Now substitute the values in the expression,
\(\frac{\text{sin(38)}}{a}= \frac{\text{sin(B)}}{b}= \frac{\text{sin(42)}}{5}\)
\(\frac{\text{sin(38)}}{a}= \frac{\text{sin(42)}}{5}\)
\(a=\frac{5\text{sin(38)}}{\text{sin(42)}}\)
a = 4.6
By applying triangle sum theorem in ΔABC,
m∠A + m∠B + m∠C = 180°
38° + m∠B + 42° = 180°
m∠B = 180° - 80°
m∠B = 100°
\(\frac{\text{sin(100)}}{b}= \frac{\text{sin(42)}}{5}\)
\(b=\frac{5\text{sin(100)}}{\text{sin(42)}}\)
b = 7.36
6) All chords are diameters.
True
or
False
a gardener is designing a rectangular planter for a rose garden in front of the administration building on a university campus. the gardener has enough material to build a 300-foot fence to enclose the garden. he also has enough roses to fill a 5,200 square foot planter.
a. To represent the garden's width, w, in terms of its length, I, we can use the equation: w = 300 - 2I
b. g(l) = l * (300 - 2l) this function gives the area of the rose garden (g) as a function of its length (l)
a. To represent the garden's width, w, in terms of its length, I, we can use the equation:
w = 300 - 2I
The width is equal to the remaining fence length (300 feet) after subtracting twice the length (2I) because the rectangular planter has two equal sides and two equal ends.
b. To define a function g that represents the rose garden's area in terms of its length, l, we can use the equation:
g(l) = l * w
Substituting the expression for the width from part (a), the function becomes:
g(l) = l * (300 - 2l)
This function gives the area of the rose garden (g) as a function of its length (l), taking into account the relationship between length and width.
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complete question is below
A gardener is designing a rectangular planter for a rose garden in front of the administration building on a university campus. The gardener has enough material to build a 300-foot fence to enclose the garden. He also has enough roses to fill a 5,200 square foot planter.
a. Define an expression to represent the garden's width, w, in terms of it length, I.
b. Define a function g to represent the rose garden's area in terms of its length, l.