Answer:
25
Step-by-step explanation:
If you divide by eight, it is equivalent to five cords per minutes.
Now you know that she plays five cords per minute, right?
So you want to multiply five by five, because she plays a total of five minutes.
Please help asap now !!!!!
Answer:
220.25
Step-by-step explanation:
881 divided by 4 is 220.25
Write the numerical expression for: 6 times the sum of 12 and 8
Answer:
6 (12+8)
Step-by-step explanation:
the word 'times' would indicate the multiplication of 2 numbers
the word 'sum' would indicate the addition of 2 numbers. in this case, 12 + 8 would be placed in parenthesis
hope this helps!! :)
What is the linear function equation that best fits the data set? 1) y = -2x + 5. 2) y = 2x + 5. 3) y = -1/2x + 5. 4) y = 1/2x - 5.
Without specific information about the data set, it is not possible to determine which equation is the best fit.
To determine the linear function equation that best fits the data set, we need more information about the data set itself. Without the data points or any other details, we cannot accurately determine which linear function equation is the best fit.
However, I can provide a general explanation of the four options:
y = -2x + 5: This is a linear equation with a negative slope of -2. It represents a line that decreases as x increases. The y-intercept is 5.
y = 2x + 5: This is a linear equation with a positive slope of 2. It represents a line that increases as x increases. The y-intercept is 5.
y = -1/2x + 5: This is a linear equation with a negative slope of -1/2. It represents a line that decreases at a slower rate as x increases. The y-intercept is 5.
y = 1/2x - 5: This is a linear equation with a positive slope of 1/2. It represents a line that increases at a slower rate as x increases. The y-intercept is -5.
Without specific information about the data set, it is not possible to determine which equation is the best fit. The best fit would depend on how well the equation aligns with the actual data points.
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find the center of mass of the tetrahedron bounded by the planes x= 0 , y= 0 , z= 0 , 3x 2y z= 6, if the density function is given by ⇢(x,y,z) = y.
we divide by the mass to get the coordinates of the center of mass:
\((x_{cm}, y_{cm}, z_{cm}) = (1/M)\).
by the question.
To find the center of mass of a solid with a given density function, we need to calculate the triple integral of the product of the density function and the position vector, divided by the mass of the solid.
The mass of the solid is given by the triple integral of the density function over the region R bounded by the given planes and the surface \(3x^2yz = 6.\)
we need to find the limits of integration for each variable:
For z, the lower limit is 0 and the upper limit is \(2/(3x^2y)\), which is the equation of the surface solved for z.
For y, the lower limit is 0 and the upper limit is \(2/(3x^2)\), which is the equation of the surface solved for y.
For x, the lower limit is 0 and the upper limit is \(\sqrt{(2/3)\), which is the positive solution of\(3x^2y(\sqrt(2/3)) = 6\), obtained by plugging in the upper limits for y and z.
Therefore, the mass of the solid is given by:
M = ∭R ⇢(x,y,z) dV
= ∫\(0^{(\sqrt{(2/3))}\) ∫\(0^{(2/(3x^2))}\) ∫\(0^{(2/(3x^2y))} y dz dy dx\)
= ∫\(0^{(\sqrt(2/3))}\) ∫\(0^{(2/(3x^2))} y * (2/(3x^2y)) dy dx\)
\(=\)∫\(0^{(√(2/3)) (1/x^2)} dx\)
\(= \sqrt{(3/2)\)
Now, we need to calculate the triple integral of the product of the density function and the position vector:
∫∫∫ ⇢(x,y,z) <x,y,z> dV
Using the same limits of integration as before, we get:
∫\(0^{(2/3))}\) ∫\(0^{(2/(3x^2))}\) ∫\(0^{(2/(3x^2y)) }y < x,y,z > dz dy dx\)
We can simplify the vector <x,y,z> as <x,0,0> + <0, y,0> + <0,0,z> and integrate each component separately:
∫\(0^{(\sqrt{(2/3))}\) ∫\(0^{(2/(3x^2))}\) ∫\(0^{(2/(3x^2y))} y x dz dy dx\)
∫\(0^{(\sqrt{(2/3))}\) ∫\(0^{(2/(3x^2))}\) ∫\(0^{(2/(3x^2y))} y 0 dz dy dx\)
∫\(0^{(\sqrt{(2/3))}\) ∫\(0^{(2/(3x^2))}\) ∫\(0^{(2/(3x^2y))} y (0) dz dy dx\)
The second and third integrals are both zero, since the integrand is zero. For the first integral, we have:
∫\(0^{(\sqrt{(2/3))}\) ∫\(0^{(2/(3x^2))} y * (2/(3x^2y)) dy dx\)
= ∫\(0^{(\sqrt{(2/3))}\) ∫\(0^{(2/(3x^2))} (2/3x) * dy dx\)
= ∫\(0^{(\sqrt{(2/3))}\) \((4/9x) dx\)
= 2/3
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Does the graph represent a direct variation model?
yes
no
Answer:
no
Step-by-step explanation:
the way the line is
given: jg/hg=kg/ig, 1=2
prove: ef || hi
The triangles ΔIGH and ΔGFE are similar triangles. So, GJ / GE = HG / FG, then the side FE is parallel to the side HI.
What is the triangle?The polygonal shape of a triangle has a number of sides and three independent variables. Angles in the triangle add up to 180°.
The ratio of the corresponding sides will be constant then the triangles will be similar triangles and the third sides of the triangles will be parallel.
GJ / GH = GK / GI, then the side KJ is parallel to the side HI.
In triangles ΔIGH and ΔGFE, then we have
∠IGH = ∠FGE (Vertival angle)
∠1 = ∠2 (Given)
Then the triangles ΔIGH and ΔGFE are similar triangles. Then we have
GJ / GE = HG / FG, then the side FE is parallel to the side HI.
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A tall skyscraper nicknamed the cathedral of commerce in new york city, new york. the skyscraper stands 52 stories with a stone surface to resemble gothic architecture. what is the name of the building above?
The tall skyscraper in New York City, New York, that is often nicknamed the "cathedral of commerce" is known as the Woolworth Building.
It is a 52-story building with a stone surface that resembles Gothic architecture. The Woolworth Building is located at 233 Broadway and was completed in 1913. It was designed by architect Cass Gilbert and was once the tallest building in the world.
The building served as the headquarters for the Woolworth Company and is now used for various purposes, including office spaces and residential units. It is considered an iconic landmark in New York City and is recognized for its distinctive design and historical significance.
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What is the area of the triangle to the nearest hundredth?
Answer: 111.85 cm^2
Good Luck!
Hey guys! I have some math questions I need help with! If your interested to help me please comment! Pls help me ASAP I don’t have time. You can put you snap or instagram user so I can DM you.
Answer: what is your question
Step-by-step explanation: Also for what subject
An equilateral triangle shares a single side with a kite to form a new
quadrilateral, as shown below.
Calculate the size of angle p.
Give your answer in degrees (°).
Answer:
<P = 41
Step-by-step explanation:
we can consider this first figure as a quadrilateral and the trianlgle attached to be is equilateral triangle (as it is already shown in the figure that sides are equal)
we know that each angle of equalateral triangle is 60°
we can see that angle 79° is attached to it and even other angle is also attached
let the other angle be x
we can notice that x and the angle of equi triangle make a linear pair
so 180 - 60
= 120°
the opposite angle to the angle x will be also equal as angles on the same side of qual sides will be equal
now we know that total angle sum of quadrilateral is 360°
so
79 + 120 + 120 + <P = 360
319 + <P = 360
<P = 360 - 319
<P = 41
Suppose $726.56 is deposited at the end of every six months into an account earning 6.45% compounded semi-annually. If the balance in the account four years after the last deposit is to be $31 300.00, how many deposits are needed? (This question asks for 'n')
We need approximately 10 deposits to reach a balance of $31,300 four years after the last deposit which is compounded semi-annually.
To solve this problem, we can use the formula for the future value of an annuity:
\(FV = P * ((1 + r)^n - 1) / r\)
Where:
FV is the future value of the annuity
P is the periodic payment or deposit amount
r is the interest rate per period
n is the number of periods
In this case, the deposit amount is $726.56, the interest rate is 6.45% compounded semi-annually, and the future value is $31,300. We need to find the number of deposits (n).
We can rearrange the formula and solve for n:
n = log((FV * r) / (P * r + FV)) / log(1 + r)
Substituting the given values:
n = log((31,300 * 0.03225) / (726.56 * 0.03225 + 31,300)) / log(1 + 0.03225)
Using a calculator or software, we find that n ≈ 9.989.
Therefore, we need approximately 10 deposits to reach a balance of $31,300 four years after the last deposit.
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7x^2– 19x – 6
How do I factorize this expression?
Answer:
x = 3 and x = -2/7
Step-by-step explanation:
you can multiple -6 by 7 = -42
and then find what adds into -19 but can multiply together to get -42.
In this case (x-21)(x+2) would work
then you have to divide out your 7 from both numbers,
(x-21/7)(x+2/7)
then you have to make them equal to zero
x-21/7 = 0 = x = 21/7 = 3
x+2/7 = 0 = x = -2/7
so your final answer is x = 3 and x = -2/7
ex 17. Determine whether each of these conditional statements is true or false. a) If1 + 1 = 2, then 2 + 2 = 5. b) If1 +1= 3, then 2 + 2 = 4. c) If 1+1=3, then 2 + 2 = 5. d) If monkeys can fly, then 1 + 1 = 3.
a) False - The consequent (2 + 2 = 5) does not hold true when the condition (1 + 1 = 2) is satisfied.
b) False - Neither the condition (1 + 1 = 3) nor the consequent (2 + 2 = 4) is true.
c) False - The consequent (2 + 2 = 5) does not follow when the condition (1 + 1 = 3) is met.
d) True - Since the condition (monkeys can fly) is false, the statement (1 + 1 = 3) holds true due to the structure of the conditional statement.
In the given conditional statements, we need to determine whether each statement is true or false based on the provided conditions.
a) If 1 + 1 = 2, then 2 + 2 = 5. This statement is false because the initial condition (1 + 1 = 2) is true, but the consequent (2 + 2 = 5) is false. In mathematics, if the condition is true, the consequent should also be true, but in this case, it is not.
b) If 1 + 1 = 3, then 2 + 2 = 4. This statement is false because both the condition (1 + 1 = 3) and the consequent (2 + 2 = 4) are false. The initial condition is not satisfied, so the statement cannot be true.
c) If 1 + 1 = 3, then 2 + 2 = 5. This statement is false for the same reason as statement a) - the initial condition is true, but the consequent is false.
d) If monkeys can fly, then 1 + 1 = 3. This statement is true because it follows the structure of a conditional statement where the condition (monkeys can fly) is false, and therefore the statement is always true.
In summary, statement a), b), and c) are false, while statement d) is true.
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a child wanders slowly down a circular staircase from the top of a tower. with in feet and the origin at the base of the tower, her position minutes from the start is given by (a) how tall is the tower? height
The prompt provides the position of a child on a circular staircase as she descends from the top of a tower. The child's position in feet and time in minutes are given by a mathematical expression.
The task is to determine the height of the tower.The problem describes the position of a child on a circular staircase, as she descends from the top of a tower. The child's position in feet and time in minutes can be described using a mathematical expression. To determine the height of the tower, we need to use this expression and solve for the unknown variable.
One possible mathematical expression for the child's position is given by:
x(t) = h - r cos(t/2)
where h is the height of the tower, r is the radius of the circular staircase, t is the time in minutes, and x(t) is the child's position in feet from the origin at the base of the tower.
To solve for the height of the tower, we need to find the value of h that satisfies the given expression for all values of t. This can be done by using the initial condition given in the problem: at t=0, the child is at the top of the tower, so x(0) = h.
Thus, we have:
x(0) = h - r cos(0/2) = h - r = 0
Solving for h, we get:
h = r
Therefore, the height of the tower is equal to the radius of the circular staircase.
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Ayúdame por faaaaaaaaa
Answer:
look at the photo I have sent
A businessperson is charged a $4.96 monthly finance charge on a bill of $283.15.
What is the monthly interest rate on the account? Round to the nearest hundredth
of a percent.
Answer:
1.75%
Step-by-step explanation:
The monthly interest rate is the interest amount divided by the base on which it is computed, expressed as a percentage.
$4.96/$283.15 × 100% ≈ 1.75172% ≈ 1.75%
I need help with geometry
Answer:
Segment QR is the shortest
Answer:
qr
Step-by-step explanation:
what is 2-4+7-6+8-0
Answer:
7
Step-by-step explanation:
Answer: Seven
Explanation: I wrote the numbers down, then added/subtracted 2 from 4, 7 from 6, and 8 from 0, then added all the totals
OCPS Dashboardirtual SchoolLessons Assessments ✔GradebookQuestion 5Mutiple Choice Worth 1 points)(08.05 MC)The following graph describes function 1, and the equation below it describes function 2. Determine which function has a greater maximum value, and provide the ordered pair.Function 1Function 1 has the larger maximum at (4, 1).05(10)-0.5Function 210x)=-x²+2x-15.Exam: 08.11 Segment Two Exam Part Two - Algebra 1 V23 (Email Tools -
Given:
Function 1 is given in the graph.
Function 2 is,
\(f(x)=-x^2+2x-15\)To find:
The function has a larger maximum value.
Explanation:
From the graph,
We know that the maximum value of the function is the highest point of the function.
For the function 1, the maximum value is 1 at x = 4.
For the function 2,
Differentiating with respect to x, we get
\(f^{\prime}(x)=-2x+2\)Equate it with zero, and we get
\(\begin{gathered} -2x+2=0 \\ x=1 \end{gathered}\)Substituting x = 1 in function 2.
\(\begin{gathered} f(1)=-1^2+2(1)-15 \\ =-14 \end{gathered}\)So, the maximum value is -14 at x = 1.
Then, comparing functions 1 and 2 we get,
Function 1 has the larger maximum value at (4, 1).
Final answer:
Function 1 has the larger maximum value at (4, 1).
Please help me solve this word problem? How should I set up my equation ?
Out of 82, 58 tickets were sold to students and 24 tickets were sold to the adults for the musical.
How to solve an equation for x?
To solve for x, bring the variable to one side, and bring all the remaining values to the other side by applying arithmetic operations on both sides of the equation. Simplify the values to find the result.
According to the given question:
Let the tickets sold to students be x.
Since total number of sold tickets are 82, the number of tickets sold to families will be 82 - x (that is 82 minus number of tickets sold to students)
Cost for one ticket for students is $3
So, the amount after selling tickets to students = 3x ---- 1)
Similarly, cost of one ticket for an adult is $5
Hence the amount after selling tickets to adults = 5(82 - x) ----- 2)
Total sales from selling tickets is $294
From equation 1) and 2)
3x + 5(82 - x) = 294
Solving for the value of x
3x + 410 - 5x = 294
2x = 410 - 294
2x = 116
x = 58
Therefore, out of 82, 58 tickets were sold to students and (82 - 58) = 24 tickets were sold to adults.
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Please help! If you do so you will get 50 points and brainiest!
Answer:
1
Step-by-step explanation:
20+7×(5-3) / (8-6)-4
Answer:
73/4
Step-by-step explanation:
20 + 7×(5-3) / (8-6)-4
= 20 + 7×(2) / (2)-4
= 20 + 14 / -8
= 73/4
Answer:
-17
Step-by-step explanation:
Use PEMDAS to simplify. PEMDAS stands for
ParenthesesExponentsMultiplicationDivisionAdditionSubtractionSimplify:
\(\sf{\dfrac{20+7\times(5-3)}{(8-6)-4}}\)
\(\sf{\dfrac{20+7\times2}{2-4}}\)
\(\sf{\dfrac{20+14}{-2}}\)
\(\sf{\dfrac{34}{-2}}\)
\(\sf{-17}\)
Hence, the answer is -17
Which of the following expenses is not a variable cost?
a.
sales commission
b.
hourly wages
c.
rent
d.
materials
please help I need an answer ASAP pleae
Answer:
1=8 2=11/12
Step-by-step explanation:
60 feet per second = how many kilometers per hour?
For solving this problem we have to know the transformations between feeds and kilometers and seconds to hours:
\(\begin{gathered} 1\operatorname{km}=3280.84ft \\ 1h=3600\text{ seg} \end{gathered}\)Now we can make the transformation:
\(60\frac{ft}{seg}=60\frac{1}{3280.84}\frac{3600}{1}=65.8\frac{\operatorname{km}}{h}\)Simplify (4y+6)-(3y-5)
Answer:
y+1
Step-by-step explanation:
4y-3y+6-5
which probability distribution is used to model a random variable x that equals the number of events that occur within an interval or area of opportunity? a. binomial b. hypergeometric c. poisson d. exponential
The probability distribution used to model a random variable x that equals the number of events that occur within an interval or area of opportunity is the Poisson distribution. This is used to model a random variable representing the number of events occurring within a fixed interval or area of opportunity, given an average rate of occurrence.
The Poisson distribution is a discrete probability distribution that describes the probability of a given number of events occurring in a fixed interval of time or space, given the average rate at which events occur and the assumption that the events are independent of each other. It is commonly used in fields such as biology, physics, and engineering to model occurrences of rare events such as accidents, defects, or rare diseases.
The Poisson distribution has a single parameter λ, which represents the average rate of events occurring in the interval or area of opportunity. The probability of observing exactly k events in this interval is given by the Poisson probability mass function:
P(X=k) = (e^-λ * λ^k) / k!
where X is the random variable representing the number of events, e is the mathematical constant approximately equal to 2.71828, and k! is the factorial of k.
The Poisson distribution is similar to the binomial distribution but is used when the number of trials is very large and the probability of success is very small. In this case, the binomial distribution becomes impractical to use, and the Poisson distribution is a more appropriate model.
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Multiple Choice -23.5 = ? O A. 115 B. -115 o C. 105 O D. -105
The value that results when 128. 5 subtracts 23. 5 would be C. 105.
How to subtract the numbers ?To solve the problem, we would need to subtract 23. 5 from the value of 128. 5:
128. 5 - 23. 5 = ?
We simply need to subtract 23. 5 from 128. 5 , which gives us:
128. 5 - 23. 5 = 105
The first option is therefore incorrect. The second option is negative like the fourth option which makes it wrong as well because 128. 5 is much larger than 23. 5 and is positive so the result will have to be positive.
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Full question is:
128. 5- 23.5 = ?
A. 115
B. -115
C. 105
D. -105
What is the perimeter of the parallelogram?
29 cm
80 cm
58 cm
32 cm 2
Step-by-step explanation:
2 sides of the parallelogram are 13cm and the other 2 sides are 16cm
Perimeter of the parallelogram
= 2 * 13cm + 2 * 16cm
= 26cm + 32cm
= 58cm.
Answer:
58 \(cm^{2}\)
Step-by-step explanation:
what is the greatest common factor of 26 and 78
Answer:
The Greatest Common Factor (GCF) of 26 and 78 is 26.
Step-by-step explanation:
The factors of 26 are 1,2,13,26
The factors of 78 are 1,2,3,6,13,26,39,78
So, as we can see, the Greatest Common Factor or Divisor is 26, because it is the greatest number that divides evenly into all of them.
Hope this helps! :)