Answer:
Its A!
Step-by-step explanation:
You take the side length of the larger rectangle and divide it by the smaller length on the smaller rectangle and get 2.5 :)
x×cos\(\frac{y}{x}\)× (ydx +xdy)= y×sin\(\frac{y}{x}\)×(xdy- ydx)
Looks like you're given
x cos(y/x) (y dx + x dy) = y sin(y/x) (x dy - y dx)
Like with your other equation, multiply by 1/x² on both sides:
cos(y/x) (y/x dx + dy) = y/x sin(y/x) (dy - y/x dx)
Then substitute z = y/x again, so y = xz and dy = x dz + z dx. You end up with a separable equation.
cos(z) (z dx + x dz + z dx) = z sin(z) (x dz + z dx - z dx)
cos(z) (2z dx + x dz) = xz sin(z) dz
2z cos(z) dx = x (z sin(z) - cos(z)) dz
(z sin(z) - cos(z)) / (z cos(z)) dz = 2/x dx
(tan(z) - 1/z) dz = 2/x dx
Integrate both sides:
∫(tan(z) - 1/z) dz = ∫ 2/x dx
-ln|cos(z)| - ln|z| = 2 ln|x| + C
ln|cos(z)| + ln|z| = -2 ln|x| + C
ln|z cos(z)| = ln(1/x²) + C
z cos(z) = C/x²
Solve in terms of y :
(y/x) cos(y/x) = C/x²
y cos(y/x) = C/x
Austin takes1 minute and 45 seconds to run three-quarters of a circular track. His rate of motion is
/
radians per second.
Austin's rate of motion is (1/70)π Radians per second.
To determine Austin's rate of motion in radians per second, we need to use the formula for angular velocity:
ω = Δθ / Δt
Where:
ω = angular velocity (in radians per second)
Δθ = change in angular displacement (in radians)
Δt = change in time (in seconds)
We know that Austin runs three-quarters of a circular track, which means he covers an arc length that is equal to three-quarters of the circumference of the circle. Let's call the radius of the circle "r". Then, the arc length covered by Austin is given by:
s = (3/4) * 2πr
s = (3/2)πr
We also know that it takes Austin 1 minute and 45 seconds to cover this distance. This is the same as 105 seconds (since 1 minute = 60 seconds).
So, Δt = 105 seconds
Now, we can calculate the change in angular displacement (Δθ). The total angle around a circle is 2π radians, so the angle covered by Austin is given by:
Δθ = (3/4) * 2π
Δθ = (3/2)π
Therefore, Austin's rate of motion (ω) in radians per second is:
ω = Δθ / Δt
ω = [(3/2)π] / 105
ω = (3/210)π
ω = (1/70)π radians per second
So, Austin's rate of motion is (1/70)π radians per second.
To know more about Radians .
https://brainly.com/question/19758686
#SPJ11
In a popular online role playing game, players can create detailed designs for their character's "costumes," or appearance. Tariq sets up a website where players can buy and sell these costumes online. Information about the number of people who visited the website and the number of costumes purchased in a single day is listed below.
The probability that a person will purchase no more than one costume is given as follows:
93%.
How to calculate a probability?The parameters that are needed to calculate a probability are listed as follows:
Number of desired outcomes in the context of a problem or experiment.Number of total outcomes in the context of a problem or experiment.Then the probability is calculated as the division of the number of desired outcomes by the number of total outcomes.
The total number of outcomes for this problem is given as follows:
187 + 228 + 29 = 444.
Only 29 people purchased more than one costume, hence the probability of at most one costume is calculated as follows:
(444 - 29)/444 = 0.93 = 93%.
Learn more about the concept of probability at https://brainly.com/question/24756209
#SPJ1
Which graph represents the equation 2x + y = 2
I need some help with this. I’m not sure if I’m right
SOLUTION
The followings are the correct or true statements of Real numbers:
2) Some rational numbers are natural numbers.
4) All whole numbers are integers.
5) Some integers are natural numbers.
Hence, the correct options are Option 2, 4, and 5.
Find the perimeter of a sector whose radius is 4 unit and arc length is 16π
Answer:
perimeter ≈ 58.3 units
Step-by-step explanation:
the perimeter of the sector includes 2 radii and the arc
perimeter = 4 + 4 + 16π = 8 + 16π ≈ 58.3 ( to 1 decimal place )
there are how many distinct website graphics to be created?
According to the question there are 35 distinct website graphics that can be created by using at least four of seven different bitmap images.
What is website?A website is a collection of related web pages, images, videos, and other digital assets that are hosted on a web server and can be accessed by users over the internet. A website is typically identified by a unique domain name and can be accessed by typing the URL into a web browser.
Using the formula for calculating the number of combinations of size k from a set of size n (n choose k), we can calculate the number of distinct website graphics that can be created by using at least four of seven different bitmap images as follows:
n = 7 (7 different bitmap images)
k = 4 (at least 4 of the 7 bitmap images)
Number of distinct website graphics = (7 choose 4) = 35
Therefore, there are 35 distinct website graphics that can be created by using at least four of seven different bitmap images.
To learn more about permutation
https://brainly.com/question/28443757
#SPJ1
Complementary and
What is the measure of Zx?
Angles are not necessarily drawn to scale.
P.
R
48
20
Q
S
2
Answer:
\(\boxed{\boxed{\sf x=42\°}}\)
Step-by-step explanation:
Given the diagram, we can see that ∠PQR and ∠RQS are complementary angles.
*Two angles with measures that add up to 90° are known as Complementary angles.*
Therefore, m∠PQR+m∠RQS=90°
\(\sf \angle PQR+\angle RQS=90\°\)
\(\sf 48+x=90\°\)
Subtract 48 from both sides:
\(\sf 48+x-48=90-48\)
\(\sf x=42\°\)
_______________________________
Answer:
The measurement of x is 42⁰.
Step-by-step explanation:
SOLUTION :
Here, we can see that the given figure is complementary angle.
As we know that two angles are said to be complementary angles if they add up to 90 degrees.
Now, according to the question :
\(\longmapsto{\sf{Sum \: of \: two \: angles = {90}^{ \circ}}}\)
\(\longmapsto{\sf{Angle_1 + Angle_2 = {90}^{ \circ}}}\)
\(\longmapsto{\sf{{48}^{ \circ} + {x}^{\circ} = {90}^{ \circ}}}\)
\(\longmapsto{\sf{{x}^{\circ} = {90}^{ \circ} - {48}^{\circ} }}\)
\(\longmapsto{\sf{{x}^{\circ} = {42}^{\circ} }}\)
\(\star{\underline{\boxed{\sf{\pink{{x}^{\circ} = {42}^{\circ}}}}}}\)
Hence, the measurement of x is 42⁰.
\(\rule{300}{2.5}\)
Solve the system by the addition method. x + 3y = 6 3x + 4y = −2
The solution to the system is x = -6 and y = 4.
To solve the system by the addition method, we want to add the equations together in a way that will eliminate one of the variables.
Let's start by multiplying the first equation by -3 to get -3x - 9y = -18, and then add the second equation to it:
-3x - 9y = -18
+ 3x + 4y = -2
-------------
-5y = -20
Now we can solve for y by dividing both sides by -5:
y = 4
We can substitute y=4 into one of the original equations, say x+3y=6, to solve for x:
x + 3(4) = 6
x + 12 = 6
x = -6
So the solution to the system is x = -6 and y = 4.
for such more question on variables.
https://brainly.com/question/19803308
#SPJ11
PLEASE HELP ASAP
solve -1/6[3-15(1/3)2]
Answer:
C) -2/9
Step-by-step explanation:
\(\displaystyle -\frac{1}{6}\biggr[3-15\biggr(\frac{1}{3}\biggr)^2\biggr]\\\\=-\frac{1}{6}\biggr[3-15\biggr(\frac{1}{9}\biggr)\biggr]\\\\=-\frac{1}{6}\biggr[3-\frac{15}{9}\biggr]\\\\=-\frac{1}{6}\biggr[\frac{27}{9}-\frac{15}{9}\biggr]\\\\=-\frac{1}{6}\biggr[\frac{12}{9}\biggr]\\\\=-\frac{1}{6}\biggr[\frac{4}{3}\biggr]\\\\=-\frac{4}{18}\\\\=-\frac{2}{9}\)
Answer:
Hence, Option (C) - 2/9 is the Answer:
Step-by-step explanation:
-1/6 [3 -15(1/3)^2]
-1/6(3 -15)(1/9))
-1/6(3 - 5/3)
-1/6 (4/3)
Hence, Option (C) - 2/9 is the Answer:
I hope it helps!
Module 2 - Lesson 23
9152/29 ANSWER IT FAST PLEASE
GRADE 5
Answer:
315.59
Step-by-step explanation:
9152\29=315.59
For two n by n square matricies A and B,
suppose rankA = rankB = n-1.
Can rank(AB) become less than n-1 ?
(e.g. rank (AB) = n-2)
If so, I humbly ask you for an example.
Thank you very much.
No, the rank of the product of two n by n square matrices A and B, denoted as AB, cannot be less than n-1 if both A and B have ranks of n-1.
According to the Rank-Nullity theorem, for any matrix M, the sum of its rank and nullity is equal to the number of columns in M. In this case, the number of columns in AB is n, so the sum of the rank and nullity of AB must be n.
If rank(A) = rank(B) = n-1, it means that both A and B have nullity 1. The nullity of a matrix is the dimension of its null space, which consists of all vectors that get mapped to the zero vector when multiplied by the matrix. Since both A and B have rank n-1, their null spaces consist only of the zero vector.
Now, considering AB, if the rank of AB were less than n-1, it would mean that the nullity of AB is greater than 1.
However, this would violate the Rank-Nullity theorem since the sum of the rank and nullity of AB must be n, which is the number of columns.
Therefore, if rank(A) = rank(B) = n-1, the rank of AB cannot be less than n-1.
For more such questions on rank
https://brainly.com/question/28839672
#SPJ8
Lily used 6 loaves of bread on a 7 day camping trip. How many loaves of bread will she use on her next camping trip that will last for 21 days?
Answer:
18
Step-by-step explanation:
Answer:
18
Step-by-step explanation:
If six loaves lasted seven days, and she is going for 21 days next time, that is three times the amount of days she went on her last camping trip. so you multiply the amount of loaves by 3.
what is the estimated sum of 4 5/12 + 3 8/14
A.7
B.7 1/2
C.8
D.9
The estimated sum of 7 83/84 is 8 to the nearest whole number.
Addition of mixed fractions:Mixed fractions are fraction that has a whole number attached to an improper fraction. A mixed fraction can be added by first adding the real whole numbers together, then adding their improper fraction counterparts with it.
Also, we can add two mixed fractions together by first converting all the mixed fractions to improper fractions before adding them together.
Using the first process:
= 4 5/12 + 3 8/14
The whole number are 4 and 3, adding those two together, we have:
= 7 (5/12 + 8/14)
The L.C.M of 12 and 14 is 84.
= 7( (7×5)+ (6*8) ) /84
= 7 (35+ 48/84)
= 7 (83/84)
To decimal, we get 7.988. Therefore, the estimated sum of 7 83/84 is 8 to the nearest whole number.
Learn more about adding mixed fractions here:
https://brainly.com/question/21610929
#SPJ1
5x=2x+30 what does x equal
5x = 2x + 30
5x - 2x = 30
3x = 30
3x/3 = 30/3
x = 10
~Tulpe ⚘
Answer:
x=10Step-by-step explanation:
5x=2x+30 what does x equal
5x=2x+30
5x-2x=30
3x=30
x=30:3
x=10
-------------------
check
5*10=2*10+30
50=50
the answer is good
which question can be represented by the equation 4 divided by 2/7=
A sum of the amount is distributed among 4 persons, each person got $ 7/2 of the amount what is the sum of the amount.
Divisions of fractions:The reciprocal of one fraction multiplied by another fraction results in a division of fractions. There is a denominator and a numerator in a fraction. By twisting the fractions, we practically multiply them when we divide one fraction by another.
Example:
1/2 ÷ 2/3 => \(\frac{1}{2} \times \frac{3}{2}\)
Here we have
4 divided by 2/7
By the given data the above mathematical statement
can be expressed as given below
=> \(4 \times \frac{7}{2}\)
Which implies 4 is multiplied by 7/2
Here 7/2 = 3.5
The question can be formed as
A sum of the amount is distributed among 4 persons, each person got $ 7/2 of the amount what is the sum of the amount.
Learn more about Fractions at
https://brainly.com/question/8482939
#SPJ1
A rectangular prism measures 3 ft by 6 ft by 5 ft. If the dimensions of the box were all quadrupled, how would the surface area of the box change?
1.The new surface area would be 16 times the original surface area.
2.The new surface area would be quadruple the original surface area.
3.The surface area would not change.
4.The new surface area would be 12 times the original surface area.
To determine how the surface area of a rectangular prism changes when all dimensions are quadrupled, we need to compare the original surface area to the new surface area.
The original surface area of the rectangular prism is given by:
SA_original = 2lw + 2lh + 2wh
where l, w, and h represent the length, width, and height of the prism, respectively.
In this case, the dimensions of the original box are:
Length (l) = 3 ft
Width (w) = 6 ft
Height (h) = 5 ft
Substituting these values into the formula, we have:
SA_original = 2(3)(6) + 2(3)(5) + 2(6)(5)
= 36 + 30 + 60
= 126 square feet
Now, if we quadruple all the dimensions of the box, the new dimensions would be:
Length (l_new) = 4(3) = 12 ft
Width (w_new) = 4(6) = 24 ft
Height (h_new) = 4(5) = 20 ft
The new surface area of the enlarged box is given by:
SA_new = 2(l_new)(w_new) + 2(l_new)(h_new) + 2(w_new)(h_new)
= 2(12)(24) + 2(12)(20) + 2(24)(20)
= 576 + 480 + 960
= 2016 square feet
Comparing the original surface area (SA_original = 126 sq ft) to the new surface area (SA_new = 2016 sq ft), we can see that SA_new is 16 times greater than SA_original.
Therefore, the correct answer is:
1. The new surface area would be 16 times the original surface area.
Which statement is true about the value of l-5l?
It is the distance that –5 is from 0 on the number line.
It is the distance that –5 is from 5 on the number line.
It is less than 5.
It is greater than 5.
Answer:
It is the distance that –5 is from 5 on the number line.
Step-by-step explanation:
It is the distance that –5 is from 5 on the number line.
Answer:
5 to 5 on the number line!
Step-by-step explanation:
Have a jolly weekend!^_^
Erin has 5 cans of juice and drinks 1/3 of a can daily. in how many days will she empty all the cans she has? I think it's 1/15 I'm not sure though.
answer this guys i will give brainliest! have a good day !!!
The ratios are;
Sin θ = 5/6
Cos θ = √11/6
Tan θ = 5√11/11
Sec θ = 6√11/11
Cosec θ = 6/5
Cot θ = √11/5
What are the six trigonometric ratios?These trigonometric ratios are used to relate the angles of a right triangle to the lengths of its sides
We can see that the hypotenuse is obtained from;
x =√\((10)^2 + (2\sqrt{} 11)^2\)
x = √100 + 44
x = 12
Then;
Sin θ = 10/12 = 5/6
Cos θ = 2√11/12
= √11/6
Tan θ = 10/2√11
= 20√11/44
= 5√11/11
Sec θ = 1/Cos θ
= 6/√11
= 6√11/11
Cosec θ = 1/Sin
θ = 6/5
Cot θ = 1/tan θ
= 11/ 5√11
= 55√11/275
= √11/5
Sinβ = 2√11/12
= √11/6
Cos β = 10/12
= 5/6
Tan β = 2√11/10
= √11/5
Sec β = 6/5
Cosec β = 6√11/11
Cot β = 5√11/11
Learn more about trigonometric ratios:https://brainly.com/question/23130410
#SPJ1
1. If A = {1, 2, 3,4}, B = {3,4,5,6}, C = {1, 2, 4, 6, 7}, then find i) AUB ii) BUC iii) (AUB)UC v) An(BNC) vi) AU(BUC) iv) AN(BUC)
Answer:
i) AUB={1,2,3,4,5,6}
ii) BUC={1,2,3,4,5,6,7}
iii)(AUB)UC={1,2,3,4,5,6,7}
iv) {1,2,3,4}
v) {4}
vi){1,2,3,4,5,6,7}
Step-by-step explanation
AUB means all the elements belongs to a and b
AnB means elements common to both sets
Maria took a taxicab from her home to the theater
downtown. The taxicab company charges a flat fee of $5.00
plus $0.25 per mile. Which equation represents C, the total
cost of her ride, in terms of m, the length of the trip in
miles?
Answer:
The answer is the third option, C = 5 + 0.25m
Step-by-step explanation:
We already know that the official price for the taxi is 5 dollars, so we aren't multiplying that value by anything.
However, the text mentions that for each mile, Maria is taxed an extra .25 cents. Therefore, you have to add the base amount, 5, plus the 25cent with the m next to it to symbolize that however many miles she goes, the 25 cents will be multiplied by that value.
un cono mide 3 pulgadas de diámetro. a este cono le caben 12 pulgadas cúbicas de agua. redondeada a la pulgada más cercana. ¿ cuál es la altura del cono?
please help
please hurry
Mr. White is renting a small truck for one week and a few additional days d. He does not have to pay a per mile fee. Evaluate the expression 280+80d to find how much he will pay for a 9-day rental.
The amount of money paid for the 9-day rental will be $1000.
What is an expression?The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
Given that Mr White is renting a small truck for one week and a few additional days d. He does not have to pay a per-mile fee. The expression is 280+80d.
The amount of money for a 9-day rental will be calculated as,
A = 280+80d
A = 280+(80 x 9)
A = $1000
Therefore, the amount of money paid for the 9-day rental will be $1000.
To know more about an expression follow
https://brainly.com/question/22040802
#SPJ2
Please provide the answer
The radius of the circle is determined as r = 5.
option B.
What is the radius of the circle?The radius of the circle is determined by applying the general formula for circle equation.
(x - h)² + (y - k)² = r²
where;
h, k is the center of the circle r is the radius of the circlex, y are the coordinates of any point on the circleThe given circle equation;
4x² + 4y² = 100
Simplify the equation by dividing through by 4;
x² + y² = 25
x² + y² = 5²
So from the equation above, the radius of the circle corresponds to 5.
r = 5
Learn more about radius of circle here: https://brainly.com/question/12269818
#SPJ1
-2.3x + 9.3x = 19.6
Show your work.
Answer:
here you go !!
hope his helps
leo le debe 15.00 pesos. Si su madre le da 60.00 pesos de paga y se gasta 20.00 con sus amigos
¿cuanto dinero le queda?
¿tendrá pendiente alguna deuda?
Answer:
Le quedan 25 pesos
No tendrá pendiente ninguna deuda
Step-by-step explanation:
60-15-20=25
At least 40% of all arsonists are under 21 years old
Answer:
Step-by-step explanation: yes, we belive that they start young with pyromania. They may see as something powerful
How many ounces each of a 63% acid solution and a 33% acid solution must be mixed to produce 100 ounces of a 39% acid solution?
Answer:
20 ounces of the 63% solution and 80 ounces of the 33% solution.
Step-by-step explanation:
Let x = number of ounces of 63% solution.
Let y = number of ounces of 33% solution.
The total solution to be made is 100 oz.
x + y = 100
x ounces of 63% solution is 0.63x ounces of acid.
y ounces of 33% solution is 0.33y ounces of acid.
100 ounces of 39% solution is 39 ounces of acid
0.63x + 0.33y = 39
The system of equations is
x + y = 100
0.63x + 0.33y = 39
Multiply the both sides of the first equation by -0.33. Then add it to the second equation.
-0.33x - 0.33y = -33
+ 0.63x + 0.33y = 39
---------------------------------
0.3x = 6
x = 6/0.3
x = 20
x + y = 100
20 + y = 100
y = 80
Answer:
20 ounces of the 63% solution and 80 ounces of the 33% solution.