what is the product of any two invertible matrices is invertible.
The product of any two invertible matrices is invertible that is (BC) = A⁻¹
Now, let's consider the product of two invertible matrices, say A and B. Since A and B are invertible, they both have an inverse, denoted by A⁻¹ and B⁻¹, respectively.
To show that the product AB is also invertible, we need to find a matrix that satisfies the definition of an inverse. Let's call this matrix C.
If C is the inverse of AB, then we should have:
(AB)C = C(AB) = I
where I is the identity matrix.
Now, we can use the associativity of matrix multiplication to expand the left-hand side of the equation:
(AB)C = A(BC)
Notice that B and C are both matrices, so their product BC is also a matrix. Thus, we can write:
A(BC) = I
Since A is invertible, we can multiply both sides by A⁻¹ to get:
A⁻¹A(BC) = A⁻¹I
The left-hand side simplifies to:
(BC) = A⁻¹
Now, we have found a matrix C that satisfies the definition of an inverse for AB, which means that AB is invertible.
To summarize, the product of two invertible matrices is invertible, and the proof relies on the fact that the inverse of a matrix is unique and the associativity of matrix multiplication.
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The level of probability that an investment will not produce expected gain is called?
Risk probability is the level of probability that an investment will not produce the expected gain.
Risk probability refers to the likelihood that an investment will not generate the expected returns. It is an important concept in investment analysis and decision-making. When making investment decisions, it is crucial to assess the potential risks involved. Risk probability helps us evaluate the likelihood of an investment not meeting our expectations. It provides an estimate of the chances of experiencing a loss or not achieving the desired level of gain.
For example, let's say you are considering investing in stocks. Before making a decision, you would analyze various factors such as market trends, company performance, and economic indicators. By assessing the risk probability, you can determine the likelihood of the investment not producing the expected returns. Also understanding the risk probability, investors can better manage their investment portfolios and make more informed decisions.
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.When developing groups, there will almost always be disagreements and conflicts as members work to develop a common understanding. This stage of group development is called○ forming.○ norming.○ performing.○ storming.○ adjourning.
The stage of group development that is characterized by disagreements and conflicts is called storming. During this stage, group members may have different ideas and opinions about how to approach tasks and goals, and they may struggle to find a common understanding.
Conflict can arise as individuals compete for leadership roles or try to assert their ideas over others. However, this stage is important for groups to progress towards their goals as it allows for open communication and the airing of different perspectives. Eventually, through negotiation and compromise, groups move on to the norming stage where a common understanding is established and roles are defined. From there, groups move on to performing, where they are able to work together effectively towards their goals.
Finally, the adjourning stage is where the group disbands after reaching their goals or completing their tasks.
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24. Omar is standing 75 feet away from the base of a building. The angle of elevation from the ground where Omar is standing to the top of the building is 24.
(MGSE9-12.G.SRT.8)
Part A: Draw a diagram to represent this situation. (1 point)
25. Jonat backyard daughter garden, sc rectangul:
(MGSE9-12
Part B. Calculate the height of the building to the nearest tenth of a foot?
Explain your process for arriving at the answer.
a. The diagram that represents this situation is given by the image shown at the end of the answer.
b. The height of the building is of: 33.4 feet.
What are the trigonometric ratios?The three trigonometric ratios are defined as follows:
Sine of angle = length of opposite side divided by the length of the hypotenuse.Cosine of angle = length of adjacent side divided by the length of the hypotenuse.Tangent of angle = length of opposite side divided by the length of the opposite side.As shown by the diagram given at the end of the answer, this situation is represented by a right triangle in which:
There is an angle of 24º.The adjacent side to the angle is of 75 feet.The height of the building is of x feet.Then the height of the building is calculated as follows:
tan(24º) = x/75
x = 75 x tangent of 24 degrees
x = 33.4 feet. -> height of the building.
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Pls answer WITH WORK
If cot θ = tan 60°, what is θ?
A = 30°
B = 45°
C = 60°
D = 90°
Please help please and thank you its due this week on wen
Answer: 100
hope this helps
ABC ~ PQR. If AB : PQ = 4:5,
find A(ABC): A(PQR).
Area (ABC) is measured as Area (PQR), which equals 16:25.
To locate,
Area (ABC) is measured as: (PQR).
Solution,
This mathematical issue can easily resolved by utilising the procedure outlined below:
According to the "Area of Similar Triangles Theorem" in mathematics,
When two triangles are similar, their area ratios are proportional to the square of the ratio of the respective sides.
{Statement-1}
In light of the query and assertion 1, we can state,
Area (ABC) is measured as: (PQR)
= (AB: PQ), (BC: QR), and (AC: PR)
= (4:5)2 = (4/5)2
= 16/25 = 16:25
As a result, Area (ABC): Area (PQR) is measured at 16:25.
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Sketch the region enclosed by the curves 9y + x = 9, y^2 − x = 1.
Decide whether to integrate with respect to x or y. Then find the area of the region.
Answer:
do it yourself what do you do while teacher is teaching
I'm stuck. plz help I dont know how
Answer:
1) regular price ⇒ $X
Sale price:75,24
Regular price: 100, X
2) The Ratio of the numbers in the first column equals the to ratio
of numbers in the second one
so.. \(\frac{75}{124}=\frac{100}{x} \\\)
X=100 ×24/75
X=$32
Regular price-sale price=32-24=$8
hope it helps...
Given ABC=65 and BCD=105. Is it possible that Line AB intersects line CD
Given:
\(m\angle ABC=65^\circ\)
\(m\angle BCD=105^\circ\)
To find:
Whether it is possible that Line AB intersects line CD.
Solution:
We have,
\(m\angle ABC=65^\circ\)
\(m\angle BCD=105^\circ\)
The angles \(m\angle ABC\) and \(m\angle BCD\) are same sided interior angles.
If two lines are parallel and a transversal line intersect them, then the same sided interior angles are supplementary angles and their sum is 180 degrees.
\(m\angle ABC+m\angle BCD=65^\circ+105^\circ\)
\(m\angle ABC+m\angle BCD=170^\circ\)
\(m\angle ABC+m\angle BCD\neq 180^\circ\)
So, the lines AB and CD are not parallel to each other.
Therefore, the intersection of lines AB and CD is possible.
g consider a disk queue holding requests to the following cylinders in the listed order: 94, 169, 39, 135, 22, 133, 69, 65. using each of the following scheduling algorithms, what is the order in which the requests will be serviced? (assume that the disk head is currently located at cylinder 50 and is moving toward higher numbered cylinders).
For FCFS (First Come, First Served):The requests will be serviced in the following order: 94, 169, 39, 135, 22, 133, 69, 65.
SSTF (Shortest Seek Time First):
The requests will be serviced in the following order: 39, 22, 65, 69, 94, 133, 135, 169
SCAN:
The requests will be serviced in the following order: 39, 65, 69, 94, 133, 135, 169, 22
C-SCAN:
The requests will be serviced in the following order: 94, 169, 39, 135, 22, 133, 69, 65
LOOK:
The requests will be serviced in the following order: 39, 65, 69, 94, 133, 135, 169, 22
C-LOOK:
The requests will be serviced in the following order: 94, 169, 39, 135, 22, 133, 69, 65
In FCFS and C-SCAN, the requests are serviced in the same order as they were received. In SSTF and LOOK, the requests are serviced in an order that minimizes the seek time of the disk head. In SCAN and C-LOOK, the requests are serviced in an order that moves the disk head in one direction (towards higher numbered cylinders in this case) until the end of the disk is reached, and then moves the disk head in the opposite direction to service the remaining requests.
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Find the amount to which $500 will grow under each of these conditions: a. 16% compounded annually for 10 years. Do not round intermediate calculations. Round your answer to the nearest cent. $ b. 16% compounded semiannually for 10 years. Do not round intermediate calculations. Round your answer to the nearest cent. $ c. 16% compounded quarterly for 10 years. Do not round intermediate calculations. Round your answer to the nearest cent. $ d. 16% compounded monthly for 10 years. Do not round intermediate calculations. Round your answer to the nearest cent. $ e. 16% compounded daily for 10 years. Assume 365 -days in a year. Do not round intermediate calculations. Round your answer to the nearest cent. $ f
a. The amount to which $500 will grow when compounded annually at a rate of 16% for 10 years is approximately $1,734.41.
b. The amount to which $500 will grow when compounded semiannually at a rate of 16% for 10 years is approximately $1,786.76.
c. The amount to which $500 will grow when compounded quarterly at a rate of 16% for 10 years is approximately $1,815.51.
d. The amount to which $500 will grow when compounded monthly at a rate of 16% for 10 years is approximately $1,833.89.
e. The amount to which $500 will grow when compounded daily at a rate of 16% for 10 years (365 days in a year) is approximately $1,843.96.
a. The amount to which $500 will grow when compounded annually at a rate of 16% for 10 years is approximately $1,734.41.
To calculate this, we can use the compound interest formula:
A = P(1 + r/n)^(nt)
Where:
A = the final amount
P = the principal amount (initial investment)
r = the annual interest rate (as a decimal)
n = the number of times the interest is compounded per year
t = the number of years
In this case, P = $500, r = 0.16, n = 1, and t = 10.
Plugging these values into the formula, we get:
A = 500(1 + 0.16/1)^(1*10)
= 500(1 + 0.16)^10
≈ 1,734.41
Therefore, $500 will grow to approximately $1,734.41 when compounded annually at a rate of 16% for 10 years.
b. The amount to which $500 will grow when compounded semiannually at a rate of 16% for 10 years is approximately $1,786.76.
To calculate this, we can use the same compound interest formula, but with a different value for n. In this case, n = 2 because the interest is compounded twice a year.
A = 500(1 + 0.16/2)^(2*10)
≈ 1,786.76
Therefore, $500 will grow to approximately $1,786.76 when compounded semiannually at a rate of 16% for 10 years.
c. The amount to which $500 will grow when compounded quarterly at a rate of 16% for 10 years is approximately $1,815.51.
Using the compound interest formula with n = 4 (compounded quarterly):
A = 500(1 + 0.16/4)^(4*10)
≈ 1,815.51
Therefore, $500 will grow to approximately $1,815.51 when compounded quarterly at a rate of 16% for 10 years.
d. The amount to which $500 will grow when compounded monthly at a rate of 16% for 10 years is approximately $1,833.89.
Using the compound interest formula with n = 12 (compounded monthly):
A = 500(1 + 0.16/12)^(12*10)
≈ 1,833.89
Therefore, $500 will grow to approximately $1,833.89 when compounded monthly at a rate of 16% for 10 years.
e. The amount to which $500 will grow when compounded daily at a rate of 16% for 10 years (365 days in a year) is approximately $1,843.96.
Using the compound interest formula with n = 365 (compounded daily):
A = 500(1 + 0.16/365)^(365*10)
≈ 1,843.96
Therefore, $500 will grow to approximately $1,843.96 when compounded daily at a rate of 16% for 10 years.
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!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
oyebro
Step-by-step explanation:
mira si ten soy sincero no c la respuesta solo necesito los puntos perdon bro
Please help for 14 point 5 stars and 1 thanks! :]
Answer:
x=22000 ( bonds)
Step-by-step explanation:
total money invested=26000 , x for bonds and y stocks
x+y=26000 ⇒ x=26000-y
0.05 x + 0.08 y=1420 solve by substitute : x=26000-y
0.05(26000-y)+0.08 y =1420
1300-0.05y+0.08y=1420
0.03y=1420-1300
y=120/0.03
y= 4000 ( the amount invested in stocks)
the amount invested in bonds x= 26000-4000
x=22000 ( bonds)
check :
0.05(22000)+0.08(4000)= 1420 correct
Find a possible solution to the equation cos(x+2) = sin(3x)
A. x=0.5
B. x=1
C. x=22
D. x=44
Answer: C. x=22
Step-by-step explanation:
cos(22+2)= 0.913545457
sin(3*22)= 0.913545457
So, cos(x+2)=sin(3x)
7th grade
HELP MEEEE!
due today
Answer:
A.
Step-by-step explanation: Because as you see the dot is past the 2 and is on the third line out of 4, the 4th line is the next number.
Which expression is the best estimate of the product of startfraction 7 over 8 endfraction and 8 and startfraction 1 over 10 endfraction?.
The best estimate of the product is b) 1 times 10.
The expression (7/8)8(1/10) can be simplified by canceling out the factor of 8 in the numerator and denominator. This yields the expression 7/10. Therefore, the best estimate of this expression would be 1 times 10, since 7/10 is closest to 1 when rounded to the nearest whole number, and 10 is the closest whole number to the denominator of 7/10.
Thus, the answer is option b, 1 times 10. It is important to note that when estimating products or other mathematical expressions, it is important to consider the context and choose an estimate that is reasonable and makes sense in the given situation.
Correct Question :
Which expression is the best estimate of the product of (7/8)8(1/10)?
a) 0 times 8
b) 1 times 10
c) 7 times 8
d) 1 times 8
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On Dec. 10, Merchandise is sold for $2,0002/10, n/30 to ABC who sends a remittance on Dec. 26 . What is the amount of remittance? a. 1,800 b. 1,400 c. 1,960 d. 2,000
The amount of the remittance from ABC is $1,960.
The given information states that merchandise is sold for $2,000 with terms of 2/10, n/30 to ABC. The terms 2/10, n/30 imply a 2% discount if payment is made within 10 days, with the full amount due within 30 days.
Since ABC sends a remittance on Dec. 26, it means the payment is made after the discount period but within the credit period. Therefore, ABC is not eligible for the discount of 2%.
To calculate the amount of the remittance, we simply subtract the discount from the total amount. In this case, the discount is $2,000 * 2% = $40. Thus, the remittance amount is $2,000 - $40 = $1,960.
In conclusion, the amount of the remittance from ABC is $1,960, as they did not qualify for the early payment discount.
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using the following integers in the order given, we can create a binary search tree. 4, 10, 12, 54, 19, 27, 7, 2 what is the value in the leftmost node in the right subtree of the root?
The value in the leftmost node in the right subtree of the root is 10.
To determine the value in the leftmost node in the right subtree of the root in the given binary search tree, we need to construct the tree using the given integers: 4, 10, 12, 54, 19, 27, 7, 2.
The binary search tree is constructed based on the property that all values in the left subtree of a node are less than the node's value, and all values in the right subtree are greater than the node's value.
Starting with the root node, which is 4, we construct the tree as follows:
4
/ \
2 10
\
12
\
19
\
27
\
54
The right subtree of the root contains the values 10, 12, 19, 27, and 54. The leftmost node in this subtree is 10.
Therefore, the value in the leftmost node in the right subtree of the root is 10.
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Please Help 50 POINTS!!
Answer:
D. \(\frac{(x-7)^2}{8^2} -\frac{(y-2)^2}{7^2}\)
Step-by-step explanation:
hope this helps
Answer: D has the largest perimeter
Step-by-step explanation:
The top numbers of fractions describe the vertex and the bottom number square rooted tells you how long each or wide each part of the asymptote rectangle is.
A.
P = 2(11) + 2(3)
P = 22+6
P=28
B.
P = 2(4) + 2(9)
p = 8 +18
P = 26
C.
P = 2(5) + 2(9)
P = 10 +18
P = 28
D.
P = 2(8) + 2(7)
P = 16 +14
P = 30
What does 1.022 represent in the expression?
Because b > 1, the correct response in this situation would be: "1.022 is the growth factor for the GDP since 1950, and the GDP increases by a factor of 1.022 every year."
In this instance, we're assuming that we can use the following function to simulate the US GDP, or gross domestic product, in dollars:
\(GDP = 11(1.0220)^{t}\)
We can also see that the exponential model formula given by: governs this formula.
\(GDP = 11(1.0220)^{t\)
Where a denotes the starting sum, b the model's growth/decay rate, and t is the number of years since 1950.
The value of b in this instance is provided by:
b = 1.022
And when we calculated r as the growth rate, we obtained:
1.022 = 1 + r
r = 1.022 - 1
r = 0.022
Because b > 1, the correct response in this situation would be: "1.022 is the growth factor for the GDP since 1950, and the GDP increases by a factor of 1.022 every year."
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a math class conducted an experiment where each student flipped a coin 10 times.The class flipped heads 158 heads and 172 tails.How does the experimental probability of flipping heads?Explain your answer.
Answer:
Step-by-step explanation:
a mmath class=english
Use Green's Theorem to evaluate
∫c F · dr.
(Check the orientation of the curve before applying the theorem.)
F(x, y) = (y − cos y, x sin y), C is the circle (x − 3)^2 + (y + 5)^2 = 4 oriented clockwise
The value of the line integral ∫c F · dr, where F(x, y) = (y − cos y, x sin y), and C is the circle (x − 3)² + (y + 5)² = 4 oriented clockwise, is -4π.
What is Green's theorem?One of the four calculus fundamental theorems, all four of which are closely related to one another, is the Green's theorem. Understanding the line integral and surface integral concepts will help you understand how the Stokes theorem is founded on the idea of connecting the macroscopic and microscopic circulations.
To use Green's Theorem to evaluate the line integral ∫c F · dr, we need to express the vector field F(x, y) = (y − cos y, x sin y) in terms of its components. Let's denote the components of F as P and Q:
P(x, y) = y − cos y
Q(x, y) = x sin y
Now, let's calculate the line integral using Green's Theorem:
∫c F · dr = ∬R (∂Q/∂x - ∂P/∂y) dA
Here, R represents the region enclosed by the curve C, and dA denotes the differential area element.
In this case, the curve C is a circle centered at (3, -5) with a radius of 2. Since the curve is oriented clockwise, we need to reverse the orientation by changing the sign of the line integral. We'll parameterize the curve C as follows:
x = 3 + 2cos(t)
y = -5 + 2sin(t)
where t varies from 0 to 2π.
Next, we need to calculate the partial derivatives of P and Q:
∂P/∂y = 1 + sin y
∂Q/∂x = sin y
Now, we can compute the line integral using Green's Theorem:
∫c F · dr = -∬R (sin y - (1 + sin y)) dA
= -∬R (-1) dA
= ∬R dA
Since the region R is the interior of the circle with a radius of 2, we can rewrite the integral as:
∫c F · dr = -∬R dA = -Area(R)
The area of a circle with radius 2 is given by πr², so in this case, it is π(2)² = 4π.
Therefore, the value of the line integral ∫c F · dr, where F(x, y) = (y − cos y, x sin y), and C is the circle (x − 3)² + (y + 5)² = 4 oriented clockwise, is -4π.
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Which of the following functions would be represented by a dashed line passing through the origin and (3,2) shaded above the line
Answer:
Explanation:
Generally, the slope-intercept form of the equation of a line is given as;
\(y=mx+b\)where m = the slope of the line
b = y-intercept of the line
From the question, we're told that the required line will pass through the origin and (3, 2), so we can find our slope(m) of the line using the given coordinates x1 = 0, y1 = 0, x2 = 3, and y2 = 2;
\(m=\frac{y_2-y_1}{x_2-x_1}=\frac{2-0}{3-0}=\frac{2}{3}\)So the slope(m) of the line is 2/3.
Since we're told that the line will pass through the origin, it means that the y-intercept (b) = 0.
Since the gragh will be shaded above the dashed line, it means that the inequality will have a greater than sign(>).
We're told that the line will be dashed, it means that the function have only the greater than sign(>) without the equal to sign(=).
Combining all the information above, the function for the line can be
Victoria and Michael paid a $150 application deposit for an apartment. Their monthly rent is $2,200. They are required to provide a credit report that costs $35 and pay a security deposit equal to 1 month’s rent. The first and last month’s rent are due at the time of signing the lease. The broker charged 2.5% of the yearly rent. Find the cost to move in.
The cost to move in for Victoria and Michael is $7,645.
The cost to move into the apartment for Victoria and Michael can be found by calculating the sum of the application deposit, credit report cost, security deposit, first and last month's rent, and the broker fee.
Using the given information:
$150 is the application deposit
$35 is the cost of the credit report
Security deposit is 1 month's rent which is $2,200
First and last month's rent are also $2,200 each.
Thus, the total amount for these two months will be $4,400
The broker charged 2.5% of the yearly rent.
The yearly rent is $2,200 × 12 months = $26,400.
Therefore, the broker fee will be 2.5% of $26,400 which is $660.
Total cost to move in = $150 + $35 + $2,200 + $2,200 + $660 + $2,200 = $7,645
Therefore, the cost to move in for Victoria and Michael is $7,645.
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A b or c ? Help please
Answer:
The second one I think
Step-by-step explanation:
Answer:
Center: (−3,2)
Radius: 3
Step-by-step explanation:
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
Answer:
C i think
Step-by-step explanation:
If a control tower and an FSS are located on the same airport, which function is provided by the FSS during those periods when the tower is closed
There are different kinds of services. If a control tower and an FSS are located on the same airport, the function that is provided by the FSS is Airport advisory service.
What services does FSS provide?Flight Service Stations is often called FSS for short. They help to provide different kinds of services such as pilot briefings, weather observations, pilot reports, flight plan processing and others.
Airport advisory services are often given at airports without the use of an operating control tower. Local airport advisory (LAA) is described as a kind of service given by facilities that are found on the landing airport.
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A consumer protection agency is testing a sample of cans of tomato soup from a company. If they find evidence that the average level of the chemical bisphenol A (BPA) in tomato soup from this company is greater than 100 ppb (parts per billion), they will recall all the soup and sue the company. a). State the null and alternative hypotheses. b). What does a Type I error mean in this situation? c). What does a Type II error mean in this situation? d). Which is more serious, a Type I error or a Type II error? ous, a Type 1 er There is no right answer to this one. It is a matter of opinion and one could argue either way. Discuss your choice and write your analysis to why you made that choice
a) H0: Average level of BPA in tomato soup is not greater than 100 ppb; H1: Average level of BPA in tomato soup is greater than 100 ppb.
b) Type I error means falsely concluding that the average BPA level is greater than 100 ppb when it's not.
c) Type II error means failing to recall the soup or sue the company, despite the average BPA level being greater than 100 ppb.
d) Arguably, a Type II error is more serious as it can expose consumers to harmful BPA levels and undermine consumer protection efforts.
What are Type I and Type II Errors?a) The null and alternative hypotheses for this situation can be stated as follows:
Null hypothesis (H0): The average level of BPA in tomato soup from this company is not greater than 100 ppb.
Alternative hypothesis (H1): The average level of BPA in tomato soup from this company is greater than 100 ppb.
b) In this situation, a Type I error refers to rejecting the null hypothesis when it is actually true. It means concluding that the average level of BPA in tomato soup from the company is greater than 100 ppb when, in reality, it is not.
c) A Type II error in this situation would be failing to reject the null hypothesis when it is actually false. It means failing to recall the soup or take legal action against the company, even though the average level of BPA in tomato soup is indeed greater than 100 ppb.
d) You could argue that a Type II error (failing to recall the soup and sue the company when the average BPA level is actually high) is more serious. It could potentially expose consumers to harmful levels of BPA and undermine the consumer protection agency's role in ensuring food safety.
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A. Y
B. X
C. W
D. Z