9514 1404 393
Answer:
108, 77
Step-by-step explanation:
Let x represent the larger part. Then ...
x + (x -31) = 185
2x = 216
x = 108
x -31 = 77
The two parts are 108 and 77.
(0)
Question 2 Consider the dynamic system described by Equation Q2. 85.16400 083.3770 0046.999 ⃗+ 0.079400 00.7030 001.07 ×10⃗+ 0.013600 03.1390 005.124 ×10⃗= 0 0 0 Equation Q2 (a) Calculate the spectral matrix, the undamped natural frequencies and damping ratios of the system in Equation Q2. Identify its fundamental frequency. (b) The following mode shape vectors have been used to diagonalise the equations of motion of the dynamical system presented in Equation Q2: f1 = [0.8076 1.0000 0.8039]T; f2 = [-0.9694 -0.1620 1.0000]T and f3 = [-0.5342 1.0000 -0.3523]T. Calculate the respective matrix of mass normalised mode shapes. (c) Using the mode superposition method, calculate the response of the system for the first physical coordinate y1 assuming the following initial conditions expressed in terms of the modal coordinates: the initial modal displacements are [0 0.5 0]T m and the initial modal velocities are [0 -3 0]T m/s.
The first physical coordinate y1 can be expressed as y1 = [1 0 0]Y, & The mass-normalised mode shapes can be normalising the mode shape vectors f1, f2, and f3.
Part (a)
In Equation Q2, the spectral matrix, undamped natural frequencies, damping ratios, and fundamental frequency need to be calculated.
The mass matrix is given by [85.16400 083.3770 0046.999; 0.079400 00.7030 001.07 × 10; 0.013600 03.1390 005.124 × 10].
The stiffness matrix is given by [0.16400 00.3770 000.999; 0.079400 00.7030 001.07 × 10; 0.013600 03.1390 005.124 × 10].
The damping matrix is given by [0 0 0; 0 0 0; 0 0 0].The undamped natural frequencies, damping ratios, and fundamental frequency for the system in Equation Q2 can be calculated from the spectral matrix.
The characteristic equation can be written as det(K-mω^2M)=0.where K is the stiffness matrix, M is the mass matrix, ω is the angular frequency, and m is the mass-normalised mode shape.
The roots of this equation are the undamped natural frequencies, and the damping ratios can be calculated from the undamped natural frequencies and mode shapes.
The mass-normalised mode shapes can be calculated by normalising the mode shape vectors f1, f2, and f3.
Part (b)
The mass-normalised mode shapes can be calculated using the mode shape vectors f1, f2, and f3.Part (c)The response of the system for the first physical coordinate y1 can be calculated using the mode superposition method. The initial modal displacements and velocities are given in terms of the modal coordinates.
The response is then calculated using the equation y(t)= Σ ai φi(t), where ai are the modal amplitudes, and φi(t) are the modal shapes given by the mode shape vectors f1, f2, and f3.
The first physical coordinate y1 can be expressed as y1 = [1 0 0]Y, where Y is the vector of physical coordinates. The modal amplitudes can be calculated from the initial modal displacements and velocities.
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NOW ASAP PLEASE NEED FAST ANSWERRRRRRRR
Let's take any 2 points from the line.
1. (-4,-2)
2. (-2,-7)
\(slope \\ = \frac{Δy}{Δx} \\ = \frac{y_{2} - y_1}{x_{2} - x_1} \\ = \frac{ 7 - ( - 2)}{ - 2 - ( - 4)} \\ = \frac{5}{2} \\ = 2 \frac{1}{2} \\ = 2.5\)
(a×b)×c=a×(b×c)x 1 which property
Since the expression (a×b)×c=a×(b×c) is the same even with the arrangement alteration, hence it connotes the multiplicative property of commutativity
Commutative propertyA binary operation is commutative if changing the order of the operands does not change the result.
For instance A +B = B + A is a commutative property since changing the position does not affect result.
We have the addition property and multiplicative property of commutativity
Since the expression (a×b)×c=a×(b×c) is the same even with the arrangement alteration, hence it connotes the multiplicative property of commutativity
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add 6 to the quotient of j and k
Answer:
j/k + 6
Step-by-step explanation:
Add 6 to the quotient of j and k comes out to:
j/k + 6
Please help me find the value of x
Answer:
7
Step-by-step explanation:
\((tangent)^{2}\) = AC × CB
\(12^{2}\) = ( x + 9 ) 9
144 = 9x + 81
9x = 144 - 81
9x = 63
x = 63 ÷ 9
x = 7
Perimeter of square = 12 1/2 in
Side length of square=
Ryan is building a tree he use. It will take hours to complete. He can work on the tree
house hours each day. tow many days will it take Ryan to complete the tree
house?
Answer:
come have IT with me baby
Step-by-step explanation:
it will make us feel better
Find the unit rate.
$6.80 for 9 muffins
Answer: approx. 75 cents / muffin
Step-by-step explanation: divide 6.8 by 9
Answer:
$0.75
Step-by-step explanation:
6.8 divide by 9=0.755555556 and so its 0.75 cents per muffin
Find an equation of the line that has a slope of -1 and a y intercept of 5. Write your answer in the form
y = mx + b.
y =
\(y=\stackrel{\stackrel{m}{\downarrow }}{-1}x+\underset{\underset{\textit{\small b }}{\uparrow }}{5}\implies y=-x+5\qquad \impliedby \begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array}\)
the kona iki corporation produces coconut milk. they take coconuts and extract the milk inside by drilling a hole and pouring the milk into a vat for processing. they have both a day shift and a night shift to do this part of the process. they would like to know if the day shift and the night shift are equally efficient in processing the coconuts. a study is done sampling 9 shifts of the night shift and 16 shifts of the day shift. the mean number of hours to process 100 pounds of coconuts was measured for each shift. which statistical test would be used to determine if there is a difference in the mean amount of time for each shift to process 100 pounds of coconuts? question 11 options: 2 sample t-test (independent samples) one way anova randomized block anova paired t-test
A two-sample t-test (independent samples) would be used to determine if there is a difference in the mean amount of time for each shift to process 100 pounds of coconuts.
A t-test is a statistical test that compares the means of two groups or samples. It allows you to determine if there is a significant difference between the means of two sets of data.The most basic type of t-test is a two-sample t-test.
This is used when you want to compare the means of two independent groups. In this case, we have the day shift and night shift, which are independent groups. Hence, we would use a two-sample t-test (independent samples) to determine if there is a difference in the mean amount of time for each shift to process 100 pounds of coconuts.
The one-way ANOVA is used when you have more than two independent groups to compare, randomized block ANOVA is used when the samples are paired, and the paired t-test is used when you have two dependent samples.
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The number of solutions to the system of inequalities above is infinite. True False
The statement "The number of solutions to the system of inequalities above is infinite" is False.
To determine the number of solutions to a system of inequalities, we need to analyze the relationships between the inequalities and their solution regions.
However, the given statement does not provide a specific system of inequalities or any information about the inequalities themselves. Without the specific inequalities, it is not possible to determine whether the number of solutions is infinite or not. The statement is incomplete and cannot be evaluated as True or False.
In general, the number of solutions to a system of inequalities can vary depending on the specific conditions and constraints imposed by the inequalities. Some systems may have no solution, a unique solution, or infinitely many solutions. To determine the number of solutions, we need to analyze the inequalities and their solution regions using methods such as graphical representation, algebraic manipulation, or linear programming techniques.
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A science class is timing how long it takes an object
to hit the ground. When the object fell, its elevation
changed a total of -4. 9 min 0. 71 s.
-
Which rational number represents the average change in elevation of the object, in meters per second?
The average change in elevation of the object in meters per second is -69/10.
Find the change in elevation of the object. The object started at an elevation of 0 meters and fell to an elevation of -4.9 meters. Therefore, the total change in elevation was -4.9 meters.
The time elapsed was 0.71 seconds.
Calculate the average change in elevation per second. Divide -4.9 meters by 0.71 seconds to get -6.90 meters per second. Express the answer as a rational number. -6.90 meters per second can be expressed as -69/10 meters per second. Therefore, the average change in elevation of the object, in meters per second, is -69/10.
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Determine the x-intercept(s) of the rational function:
f(x) = (x ^ 2 - 16)/(x ^ 2 - 2x - 3)
Answer:
(-4,0) and (4,0)
Step-by-step explanation:
The x-intercepts occur for values of x where f(x) = 0.
f(x) = 0 when the nominator (\(x^{2} - 16\)) = 0.
\(x^{2} -16\) is a difference of squares,
so you can factor it as (x + 4)(x – 4)
When x = –4 or x = 4, the nominator is 0, and f(x) = 0
Consider this equation.
7.8 + 2(0.75m + 0.4) = -6.4m + 4(0.5m - 0.8)
Mia solved the equation and determined that m = 2. Is she correct?
She is incorrect because when substituting 2 for m the result was a true statement.
She is incorrect because when substituting 2 for m the result was a false statement.
She is correct because when substituting 2 for m the result was a true statement.
She is correct because when substituting 2 for m the result was a false statement.
Can someone please help me?
Answer:
it's wrong
Step-by-step explanation:
because the answer in this 7.8 + 2(0.75m+ 0.4) is not 6.4
Answer:
B she is incorrect because when substituting 2 for m the result was a false statement
Step-by-step explanation:
i just did it on edge
how many different ways can a planning board of 6 scientists be selected from a group of 11 scientists?
There are 462 different ways to select a planning board of 6 scientists from a group of 11 scientists.
The problem requires selecting 6 scientists from a group of 11 scientists. This is a combination problem, and the formula for combination is nCr, where n is the total number of items, and r is the number of items to be selected. The formula is given by:
nCr = n! / (r! * (n-r)!)
Where "!" denotes the factorial of a number, which is the product of all positive integers up to that number.
Using the given formula, the number of ways of selecting a planning board of 6 scientists can be calculated as:
11C₆ = 11! / (6! * (11-6)!)
= (11109876!) / (6! * 54321)
= (1110987) / (5432*1)
= 462
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Are the following linear equations? If they are, put them in the form Lu linear operator L, and classify them as homogeneous or inhomogeneous:
(A) Ut = (xux)2 + (yuy)y + xy (B) uux + Uxxx = Ut (C) Utt = Uxxxx + Uyyyy
A homogeneous equation.
Yes, the following are linear equations:
(A) Ut = (xux)2 + (yuy)y + xy
This equation can be put in the form Lu linear operator L as follows: LAUt = 0, which is a homogeneous equation.
(B) uux + Uxxx = Ut
This equation can be put in the form Lu linear operator L as follows: LBu = Ut, which is an inhomogeneous equation.
(C) Utt = Uxxxx + Uyyyy
This equation can be put in the form Lu linear operator L as follows: LCT = 0, which is a homogeneous equation.
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Divide 128 chairs among 3 rooms in the ratio of 1 : 3 : 4.
Answer:
Step-by-step explanation:
1x+3x+4x= 128
8x=128
x=128/8
x=16
therefore,
room 1 = 1x
= 1*16=16
room 2 = 3x
=3*16=48
room 3 = 4x
=4*16=64
PLS MARK BRAINLIEST, THNX
How many bit strings of length 14 have:
(a) Exactly three 0s?
(b) The same number of 0s as 1s?
(d) At least three 1s?
There are 3432 bit strings of length 14 with the same number of 0s as 1s.
How to calculate the bit strings of length 14?(a) How many bit strings of length 14 have exactly three 0s?
To find this, we can use the combination formula: C(n, k) = n! / (k!(n-k)!), where n = 14 (length of the bit string) and k = 3 (number of 0s).
C(14, 3) = 14! / (3!(14-3)!) = 14! / (3! * 11!) = 364
So, there are 364 bit strings of length 14 with exactly three 0s.
(b) How many bit strings of length 14 have the same number of 0s as 1s?
Since the bit string has 14 bits, we need 7 0s and 7 1s for the same count.
C(14, 7) = 14! / (7!(14-7)!) = 14! / (7! * 7!) = 3432
So, there are 3432 bit strings of length 14 with the same number of 0s as 1s.
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I need help with this assignment.
Answer:
x=3
z=112
Step-by-step explanation:
9x-27 needs to be solved for x.
Set the equation equal to zero.
9x-27=0
Now add 27 to both sides.
9x=27
Divide both sides by 9
x=3
Plug 3 into 5x+53 to find the angle.
5(3)+53=15+53=68.
Since 5x+53 and Z are on the same line, that means, when added together, they equal 180 degrees. Subtract 68 from 180.
z=112
What values of x and y make BCD ~UST?
Step-by-step explanation:
c a
Francisco forgot to pay the $50 water bill. The company charges you a 14% fine. How much does Francis have to pay including the fine?
answer correctly for BL
Answer:
The height is 5 feet
H= v/b
Step-by-step explanation:
PLEASE HELPPPPPPPPPPPPPPPP
Answer:
Our radius is already given, 8.
8 x 3.14 x 2 = 50.24cm <-------- perimeter/circumference
8^2 x 3.14
64 x 3.14 = 200.96cm2 <------- area
Formula of a circumference:
2πr
2 x pie x radius (pie can be used as 22/7 or 3/4 most likely 3.14)
Formula of an area of a Circle:
πr^2
pie x radius squared (pie can be used as 22/7 or 3.14)
Please help!!! i need this done by tonight!! 30 points!!
The symbol ∠ is used to denote an angle. The symbol m ∠ is sometimes used to denote the measure of an angle.
What is angle for example?The two hands together make different sets of lines from a common point. These sets of lines from a common point is called angle. The two hands form different angles every minute of the time. A clock forms an example of angles in real life.When the angle between two lines is it is said to be zero angle. The angle between twAn angle is formed when two straight lines or rays meet at a common endpoint. The common point of contact is called the vertex of an angle. The word angle comes from a Latin word named 'angelus,' meaning “corner or rays becomes when both the rays are in the same direction.Tape random straight lines across students' tables to create lots of angles where the tape overlaps. Then ask your students to sit around the table with a marker, and encourage them to classify as many angles as they could. After classifying angles, your pupils can then move on to measuring them.x = 15
∠H = 82
∠I = 49
∠G = 49
Note that side HG and side HI are congruent ( indicated by the little dashed line ) which means that their opposite angles are congruent ( ∠I and ∠G to be more specific. )
Angles in a triangle add up to equal 180°
Hence, 3x + 37 + 2 ( 4x - 11 ) = 180 ( note that the 2 in 2(4x - 11) came from angles I and G being congruent )
We now solve for x
3x + 37 + 2 ( 4x - 11 ) = 180
step 1 distribute the 2 to the 4x and -11
2 + 4x = 8x
-11 * 2 = -22
we now have 3x + 37 + 8x -22 = 180
step 2 combine like terms
3x + 8x = 11x
37 - 22 = 15
we now have 11x + 15 = 180
step 3 subtract 15 from each side
15 - 15 cancels out
180 - 15 = 165
we now have 11x = 165
step 4 divide each side by 11
11x / 11 = x
165 / 11 = 15
we're left with x = 15
Our final step is to find the measures of ∠G, ∠H and ∠I
We can do this by simply replacing x with 15 in their given expression
∠H = 3x + 37
* substitute 15 with x *
3 ( 15 ) + 37
3 * 15 = 45
45 + 37 = 82
Hence, ∠H = 82
∠I = 4x - 11
* substitute x with 15 *
4(15) - 11
4 * 15 = 60
60 - 11 = 49
Hence, ∠I = 49
Like stated previously ∠G and ∠I are congruent
Hence, ∠G = 49
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Find the side length of the regular octagon whose perimeter is 674 units.
Answer:
Solving for A.
8 = 1
Step-by-step explanation:
a=P
8=674
8=84.25
reddit a bag of 15 scrabble tiles contains three each of the letters a, c, e, h, and n. if you pick six letters one at a time, what is the chance that you spell c-h-a-n-c-e? (in this order)
The chance of spelling C-H-A-N-C-E in that order is 0.0015 or 0.15%.
To calculate this, we need to multiply the probabilities of drawing each letter in the correct order.
For the first letter, C, there are 3 C tiles out of 15 total tiles, so the probability is 3/15 or 1/5.
For the second letter, H, there are 3 H tiles out of 14 remaining tiles, so the probability is 3/14.
For the third letter, A, there are 3 A tiles out of 13 remaining tiles, so the probability is 3/13.
For the fourth letter, N, there are 3 N tiles out of 12 remaining tiles, so the probability is 3/12 or 1/4.
For the fifth letter, C, there are 2 C tiles out of 11 remaining tiles, so the probability is 2/11.
For the sixth letter, E, there are 3 E tiles out of 10 remaining tiles, so the probability is 3/10.
Multiplying all of these probabilities together gives us the overall probability of spelling C-H-A-N-C-E in that order:
(1/5) * (3/14) * (3/13) * (1/4) * (2/11) * (3/10) = 0.0015 or 0.15%
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If Cos A = 9/41 and tan B = 28/45 angle A and B are in quadrant I find the value of Tan(A+B)
A rectangle has a height of 2x^42x 4 2, x, start superscript, 4, end superscript and a width of x^2+8x+15x 2 +8x+15x, squared, plus, 8, x, plus, 15. Express the area of the entire rectangle. Your answer should be a polynomial in standard form.
Area of rectangle is 2x⁶ + 16x⁵ + 30x⁴ when A rectangle has a height of 2x^42x 4 2, x, start superscript, 4, end superscript and a width of x^2+8x+15x 2 +8x+15x, squared, plus, 8, x, plus, 15.
Define area of rectangle.The area a rectangle occupies is the space it takes up inside the limitations of its four sides. The dimensions of a rectangle determine its area. In essence, the area of a rectangle is equal to the sum of its length and breadth. When calculating a rectangle's area, we multiply the length by the width of the rectangle. The region that an object's shape defines as its area. The area of a figure or any other two-dimensional geometric shape in a plane is how much space it occupies.
Given
Rectangle's height = 2x⁴
Rectangle's width = x² + 8x + 15
Area of rectangle
Height × Width
2x⁴ × x² + 8x + 15
2x⁶ + 16x⁵ + 30x⁴
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a student earned the following scores on her first three quizzes: 85, 74 and 91 what is the lowest score the student can earn on the next quiz to keep and avarage of at least 80?
HELP ME PLES
PERIOD, FREQUENCY OR AMPLITUDE
1. Doesn't change period
2. More of this means more energy
3. Increases as a pendulum swings back and forth faster
4. Measured in cycles per second
5. Measured in meters or centimeters
6. This is decreases with smaller swing
7. If the frequency increases, this decreases
8. Measured in Hertz
9. Measured in seconds
10. if it swings back and forth slower, this decrease
11. As it dampens, this decreases
What is the exact distance from (−5, 1) to (3, 0)?
Answer:
√65
Step-by-step explanation:
I am pretty sure this is the correct answer :)
Answer:
d = √(x2 - x1)² + (y2 - y1)² given two points, (-5, 1) (3, 0)
d = √(3 - (-5)² + (0 - 1)²
d = √(8)² + (-1)²
d = √64 + 1
d = √65 B. is the answer
Step-by-step explanation: