pls help asap!!!!!!!!!!!!!

B. \(-x^2-2\).

Hope this helps.

Answer:

i think its g(x)=-x^2-2

Step-by-step explanation:

1) If u is a column vector and v is a row vector, then uv^T is a matrix in R^(n x n), while if v is a column vector and u is a row vector, then vu^T is also a matrix in R^(n x n).

2) uv^T and vu^T are generally not equal, unless u and v are scalar multiples of each other, in which case they are both equal to k^2 times the identity matrix in R^(n x n).

If u and v are vectors in R^n, then u^T v is the dot product of u and v, which is a scalar. Similarly, v^T u is also the dot product of u and v and is therefore equal to u^T v. Thus, u^T v and v^T u are equal.

If u is a column vector in R^n and v is a row vector in R^n, then uv^T is a matrix in R^(n x n). Similarly, if v is a column vector in R^n and u is a row vector in R^n, then vu^T is also a matrix in R^(n x n).

However, uv^T and vu^T are not generally equal. In fact, they are only equal if u and v are scalar multiples of each other (i.e., u = kv for some scalar k). In this case, uv^T and vu^T are both equal to k^2 times the identity matrix in R^(n x n). Otherwise, uv^T and vu^T are different matrices.

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The given question is incomplete, the complete question is:

If U And V Are In R^n, How Are U^T v And V^T u Related? How Are. Uv^T And Vu^T Related?

Answer:

\(\huge\boxed{y=\frac{1}{4}x + \frac{13}{4}}\)

Step-by-step explanation:

In order to find the equation to this line, we need to note that we see two points on this graph. Using these two points, we can use them to find the slope of the graph and use one to find the y-intercept.

We know that the slope of a line is defined by \(\frac{\Delta y}{\Delta x}\) (change in y / change in x). Therefore, we can use our two points that we know - (-5, 2) and (3, 4) to find the slope.

The change in y is \(4 - 2 = 2\), and the change in x is \(3 - (-5) = 3+5= 8\). Therefore, our slope is \(\frac{2}{8} = \frac{1}{4}\).

Now that we know our slope, our equation in slope-intercept form looks something like this.

\(y = \frac{1}{4}x + b\)

However, we still have b to solve for. We can solve for this by substituting a point we already know into the equation. Let's substitute (3, 4) inside.

So now we know that the y-intercept is \(\frac{13}{4}\). Plugging that into our equation finishes it off, leaving our final equation to be \(y = \frac{1}{4}x + \frac{13}{4}\).

Hope this helped!

Answer:

y= 1/4 + 13/4

Step-by-step explanation:

mark brainless please..

;-;

(did this question before)

lol

Charlie

Here, we want to check if polynomials is closed under subtraction or not

To check this, we proceed either ways, if the answer is same, then it is closed. If otherwise, then it is not

We have;

As we can see, both results are not equal

If subtraction was closed under polynomials, then the results of both should have been equal. This means Charlie is correct.

The linear relationship between time and distance can be considered proportional. The constant of proportionality in this case is 4.

In a proportional relationship, the ratio between the two quantities remains constant. Here, as time increases by 2 hours, the distance also increases by 8 miles. Let's calculate the ratio of distance to time for each pair of values:

For the first pair (2 hours, 8 miles):

Ratio = distance / time = 8 miles / 2 hours = 4 miles/hour

For the second pair (4 hours, 16 miles):

Ratio = distance / time = 16 miles / 4 hours = 4 miles/hour

For the third pair (6 hours, 24 miles):

Ratio = distance / time = 24 miles / 6 hours = 4 miles/hour

For the fourth pair (8 hours, 32 miles):

Ratio = distance / time = 32 miles / 8 hours = 4 miles/hour

As we can see, the ratio of distance to time remains constant at 4 miles per hour for all the pairs. This indicates a proportional relationship between time and distance.

Therefore, the linear relationship is also proportional, and the constant of proportionality is 4.

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Answer:

2\(\sqrt{10}\)

Step-by-step explanation:

(✿◡‿◡) <--- she wants Brainliest

The hexadecimal equivalent of the binary number 1111 1111 is FF.

The hexadecimal number system is a base-16 system that uses sixteen symbols, 0 to 9 and A to F, to represent numbers.

Each hexadecimal digit represents four binary digits, which makes it easier to convert binary to hexadecimal and vice versa.

The conversion process involves grouping the binary number into sets of four bits, starting from the right, and then converting each group into its hexadecimal equivalent.

In the case of the binary number 1111 1111, it can be grouped into two sets of four bits: 1111 and 1111. The binary number 1111 is equal to 15 in decimal, and the hexadecimal equivalent of 15 is F. Therefore, the hexadecimal equivalent of 1111 1111 is FF.

It's worth noting that FF in hexadecimal is equal to 255 in decimal, which is the largest number that can be represented with 8 bits in binary.

The use of hexadecimal notation makes it easier to read and understand large binary numbers, as well as to perform conversions between different number systems.

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The probability of at least 15% of 100 Indianapolis residents supporting the patriots in gaint match Super Bowl XLVI is 0.293.

By using the normal distribution method, a mean u and standard deviation σ,

The ratio of people who wants the Giants to eat patriots is p = 0.90,

The assumed sample size denoted by n is 100,

and their distribution's mean is u = 0.90,

by using the standard deviation formula is

σ = √(p(1 - p) ÷ n),

σ = √(0.90(1 - 0.90) ÷ 100),

σ = 0.03,

we get that the standard deviation is σ = 0.03

Here the probability that at least 15% of 100 Indianapolis residents encouraged the Patriots in the gaint match  Super Bowl XLVI is

P(X > 0.15) = 1 - P((X - u) ÷ σ) > (0.90 - 0.15) ÷ 0.03))

The significant value of X,

X - u ÷ σ = Z

we get,

P(X > 0.75) = (Z<5)-1

P(X < 0.75) = 1.293 - 1

P(X < 0.75) = 0.293

By solving we get, The probability of at least 15% of 100 Indianapolis residents supporting the patriots in gaint match Super Bowl XLVI is 0.293.

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The process capability index, Cpk, is the minimum of the two ratios. In this case, Cpk = 0.44.

The process capability index (Cpk) is a statistical measure that indicates the ability of a manufacturing process to produce output within specified limits,

in this case, the diameter of holes drilled in wood. To calculate the Cpk, we need to determine the minimum of two ratios: (USL - μ) / (3σ) and (μ - LSL) / (3σ), where USL is the upper specification limit (0.5 inches), LSL is the lower specification limit (0.4 inches), μ is the process mean (0.46 inches), and σ is the standard deviation (0.03 inches).

First, calculate the upper ratio:
(USL - μ) / (3σ) = (0.5 - 0.46) / (3 * 0.03) = 0.04 / 0.09 ≈ 0.44

Next, calculate the lower ratio:
(μ - LSL) / (3σ) = (0.46 - 0.4) / (3 * 0.03) = 0.06 / 0.09 ≈ 0.67

This value indicates how well the drilling process is able to maintain the required diameter specifications. A higher Cpk value (greater than 1) signifies that the process is more capable of producing within the specified limits, whereas a lower Cpk value (less than 1) suggests that the process may not consistently meet the diameter requirements.

In this instance, the Cpk of 0.44 indicates that there may be room for improvement in the drilling process to achieve greater consistency in meeting the specified diameter limits.

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Step-by-step explanation:

the perpendicular line can be represented by bx-ay+k=0 ,So the second step Is Written

since the line passes through point (-4,1) ,the value of x and y is Substitute as written in answer

Answer:

y=-2x-7

Step-by-step explanation:

3x-6y=18 also equals 3x-18=6y

divide both sides by 3 to get x-6=2y or y=x/2-3 as same line then, to find inverse switch x and y, x=(y/2)=3 and solve for y, y-6=2x, -y=2x+6 is the inverse then to make it pass thru (-4,1) change b value, y=-2x-7

The following distributions has a mean that varies

II. The distribution of sample data

III. The sampling distribution of the sample mean

The correct answer is option v) II and III."

Here, we have,

In the context of statistical distributions:

I. The population distribution refers to the distribution of a specific variable within the entire population. The mean of the population distribution which is fixed and does not vary.

II. The distribution of sample data refers to the distribution of a variable within a specific sample. The mean of the sample data can vary from one sample to another.

III. The sampling distribution of the sample mean refers to the distribution of sample means taken from multiple samples of the same size from a population. The mean of the sampling distribution of the sample mean is equal to the population mean, but the individual sample means can vary from sample to sample.

Therefore, the mean varies in both the distribution of sample data (II) and the sampling distribution of the sample mean (III), but not in the population distribution (I).

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In Milgram's first study of obedience, the majority of teachers initially complied but refused to deliver more than slight levels of shock.

In Milgram's first study of obedience, participants were assigned the role of 'teacher' and were instructed to administer electric shocks to a 'learner' whenever they answered a question incorrectly. The shocks ranged from mild to severe, with the highest level labeled as 'XXX.' The learner was actually an actor, and no real shocks were administered.

The study found that the majority of teachers initially complied with the experimenter's orders and delivered shocks, but they refused to deliver more than slight levels of shock. This suggests that while they were willing to follow the instructions to some extent, they had moral reservations about causing significant harm to another person.

It is important to note that the study has been criticized for ethical concerns and the potential psychological harm it may have caused to participants. However, it remains a significant contribution to our understanding of obedience and the power of authority figures.

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Independent-samples t test. This test is used to compare the means of two independent groups. The correct answer is a.

In this case, the average number of matching characteristics reported by the fingerprint analysts and the average number of matching characteristics calculated by the defense attorney. The standard deviation of s = 1.2 would be used in the calculation of the t-statistic.
To determine whether the average number of matching characteristics the defense attorney observed (M = 9.8) differs significantly from that reported by fingerprint analysts (16 matching characteristics), she should use a "Single-sample t test".
Here's why:
- The defense attorney is comparing a sample (her 30 cases) to a known population mean (16 matching characteristics).
- The standard deviation of the sample is provided (s = 1.2), but the population standard deviation is not known.
- An Independent-samples t test would be used if comparing two independent groups, which is not the case here.
So, the correct answer is c. Single-sample t test.

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Answer:

The answer is below

Step-by-step explanation:

A linear graph has an equation of the form:

y = mx + b,

where y and x are variables, m is the slope (rate of change) of the graph and b is the y intercept (value of y when x is 0).

Given that:

2x -2y = 4 , 3x + 2y = 6

The matrix form of the equation is:

AX = B

\(A=\left[\begin{array}{cc}2&-2\\3&2\end{array}\right] ,X=\left[\begin{array}{c}x\\y\end{array}\right] ,B=\left[\begin{array}{c}4\\6\end{array}\right] \\\\Therefore:\\\\\left[\begin{array}{cc}2&-2\\3&2\end{array}\right] \left[\begin{array}{c}x\\y\end{array}\right] =\left[\begin{array}{c}4\\6\end{array}\right] \\\\\left[\begin{array}{c}x\\y\end{array}\right] =\left[\begin{array}{cc}2&-2\\3&2\end{array}\right]^{-1} \left[\begin{array}{c}4\\6\end{array}\right] \\\\\)

\(\left[\begin{array}{c}x\\y\end{array}\right] =\left[\begin{array}{cc}0.2&0.2\\-0.3&0.2\end{array}\right] \left[\begin{array}{c}4\\6\end{array}\right] \\\\\left[\begin{array}{c}x\\y\end{array}\right] =\left[\begin{array}{c}2\\0\end{array}\right]\)

Answer: The common ratio r is s2/5 = sqrt(s2), the fifth term is ar^4 = s8/5 = 25s4/5, and the nth term is ar^(n-1) = s2/5 * sqrt(s2)^(n-1).

Step-by-step explanation:

The general form of a geometric sequence is given by:

a, ar, ar², ar², ...

where a is the first term and r is the common ratio.

In this case, we have:

a = 1

ar = s2/5

ar² = s4/5

ar³ = s6/5

We can use the second and third equations to solve for r:

ar / a = (s2/5) / 1

r = s2/5

ar² / ar = (s4/5) / (s2/5)

r = sqrt(s4/5 / s2/5) = sqrt(s4/s2) = sqrt(s2)

Since we have two expressions for r, we can equate them and solve for s:

s2/5 = sqrt(s2)

s2 = (s2/5)²

s2 = s4/25

25s2 = s4

s4/5 = 25s2/5

Therefore, the common ratio r is s2/5 = sqrt(s2), the fifth term is ar^4 = s8/5 = 25s4/5, and the nth term is ar^(n-1) = s2/5 * sqrt(s2)^(n-1).

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A 98% confidence interval estimate of the mean wake time for a population with zopiclone treatments is 74.26 to 125.54.

What is a confidence interval?

A confidence interval (CI) is a range of values that, with a particular level of certainty, is likely to encompass a population value. A population mean that sits between an upper and lower interval is frequently stated as a percentage.

Here,

From the standard normal table, the z-critical value at 98% confidence interval is 2.33 so,

98%C.I. = µ ± z * σ /   n = 98.90 ± 2.33 * 42.30 / sqrt of 16  = 98.90 ± 24.64 = 74.26 to 125.54

The mean wake time of 102.80 minutes before the treatment due to the mean wake time of 102.80 minutes included in the 98% confidence interval which is between 74.26 and 125.54. Zopiclone does not appear effective.

Hence, A 98% confidence interval estimate of the mean wake time for a population with zopiclone treatments is 74.26 to 125.54.

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The margin of error for the 95% confidence interval is given as follows:

M = $321.

The t-distribution is used when the standard deviation for the population is not known, and the bounds of the confidence interval are given according to the equation presented as follows:

\(\overline{x} \pm t\frac{s}{\sqrt{n}}\)

The variables of the equation are listed as follows:

The critical value, using a t-distribution calculator, for a two-tailed 95% confidence interval, with 86 - 1 = 85 df, is t = 1.9883.

The parameters are given as follows:

\(\overline{x} = 3600, s = 1500, n = 86\)

Hence the margin of error is obtained as follows:

\(M = t\frac{s}{\sqrt{n}}\)

\(M = 1.9833 \times \frac{1500}{\sqrt{86}}\)

M = $321.

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Answer: Read the step by step explanation for the answer

Step-by-step explanation:

We can use the Pythagorean theorem to find the hypotenuse of the right triangle formed by the given point (4, 3) and the origin (0, 0):

r = √(4² + 3²) = 5

Then we can use the coordinates of the point (4, 3) to determine the values of the trigonometric functions:

sin(θ) = opposite/hypotenuse = 3/5

cos(θ) = adjacent/hypotenuse = 4/5

tan(θ) = opposite/adjacent = 3/4

csc(θ) = hypotenuse/opposite = 5/3

sec(θ) = hypotenuse/adjacent = 5/4

cot(θ) = adjacent/opposite = 4/3

Therefore, the values of the six trigonometric functions of θ are:

sin(θ) = 3/5

cos(θ) = 4/5

tan(θ) = 3/4

csc(θ) = 5/3

sec(θ) = 5/4

cot(θ) = 4/3

Answer:

Domain: All real numbers
Range: f(x) ≥ - 10

Step-by-step explanation:

I had the same test. Completed it and got it right.
Sorry for the lack of explanation, I can't put it into words at the moment.

Answer:

3/25

Step-by-step explanation:

Answer:

=325

Showing Work:

12%=12100

=0.12

=0.121×100100

=12100

=325

The reason for the statement "L || k, t is perpendicular to l at s" is that line L is parallel to line k, and line t is perpendicular to line l at the point of intersection s.

The reason for the statement "L || k, t is perpendicular to l at s" can be explained using basic geometric concepts:

Therefore, the reason for the statement "L || k, t is perpendicular to l at s" is that line L is parallel to line k, and line t is perpendicular to line l at the point of intersection s

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Answer:

  16 square inches

Step-by-step explanation:

You want the largest rectangle that can be inscribed in a semicircle with radius 4 inches.

The equation of a circle centered at the origin with radius 4 is ...

  x² +y² = 16

The height (y) of a rectangle whose corner is on the circle will be ...

  y = √(16 -x²)

The width of such a rectangle is 2x, so the area of it is ...

  A = WH = (2x)√(16 -x²)

The maximum area will be had when the derivative of the area with respect to x is zero.

  A' = 2√(16 -x²) - 2x²/√(16 -x²) = 0

Multiplying by √(16 -x²)/2 gives ...

  16 -x² -x² = 0

  16 = 2x²

  x = √(16/2) = 2√2

The corresponding area of the rectangle is ...

  A = 2(2√2)√(16 -(2√2)²) = 16

The largest rectangle has an area of 16 square inches.

__

Additional comment

As is often the case with rectangle optimization problems, the largest rectangle that can be inscribed in the quarter circle in each quadrant is a square. It has a diagonal of 4 inches, so an area of 4²/2 = 8 square inches.

The attachment shows the cubic curve representing the area of that square as a function of its width. As above, the rectangle area is double this value.

Answer:

1/2

Step-by-step explanation:

Okay so the find slope you have the put the line in y-mx+b form.  In -2x+4y=16 to get 'y' by its slef you have to add 2y to each side.  4y=16+2x then you have to divide by 4 to get y alone.  y=4+1/2x

Your slope is 1/2

Answer:

Step-by-step explanation:

x = width

x+8 = length

x(x+8)=273

x2 +8x-273=0

(x+21)(x-13)=0

x=-21  x=13

width can not be -21

width = 13 cm

length =21 cm

Answer:

The Length and Width are 21 cm, 13cm.

Step-by-step explanation:

so,

273 cm²   = ( x + 8 ) cm * ( X ) cm

Expanding the equation :

273 = x² + 8x cm => x² + 8x -273 =0

Now we use the Quadratic formula :

x = (-8 ± √(64 + 1092)) / 2    => x = (-8 ± √(1156)) / 2   => x = (-8 ± 34) / 2

Now we have two possibles,

Dimensions cannot be positive so x = 13, x+8 = 21.

Therefore the length, and width are 21 cm and 13 cm respectively.

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The value of b = -3/2 and c = -5/4

To write the quadratic x² - 3x + 1 in the form (x + b)² + c, we can expand (x + b)² and compare it to the given expression:

(x + b)² = x² + 2bx + b²

Comparing this to the given expression x² - 3x + 1, we see that we need:

2bx = -3x, so b = -3/2

b² + c = 1, so substituting b = -3/2 gives:

(9/4) + c = 1

so c = 1 - 9/4

= 4/4 - 9/4

= -5/4

The quadratic x² - 3x + 1 can be written in the form (x - 3/2)² + ( - 5/4).

Therefore, the value of b = -3/2 and c = -5/4

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Given question is incomplete, the complete question is below

the quadratic x²-3x + 1 can be written in the form (x +b)² + c, where b and c are constants. what is b, c?

The z-score for 11 minutes of advertising time is approximately -0.667

Here we have given that a radio station claims that the amount of advertising each hour has a mean of 12 minutes and a standard deviation of 1.5 minutes. you listen to the radio station for 1 hour and observe that the amount of advertising time is 5 minutes.

And we need to calculate the z-score for this amount of advertising time.

While we looking into the given question, we have identified that Z-scores measure the distance of any data point from the mean in units of standard deviations and are useful because they allow us to compare the relative positions of data values in different samples.

Here the z-score for any single data value can be found by the formula:

z = (data value- mean) / standard deviation

Here from the information given we know:

Data value = 11 minutes

Mean = 12 minutes

Standard deviation = 1.5 minutes

When we apply the values on the formula then we get,

=> z = (11 - 12) / 1.5 = -0.667

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Step-by-step explanation:

in this problem, we are expected to convert from miles per hour to feet per second

a). What is her speed in miles per hour?

we know that speed= distance/ time

given that

distance= 26.2 mile

time= 5 hours

substitute and solve for speed we have

speed= 26.2/5

speed= 5.24 miles per hour

b) What is her speed in feet per second?

1 mile per hour is 1.46667 feet per second

5.24 miles per hours will give x

cross multiply to solve for x we have

x= 5.24*1.46667

x= 7.68 feet per seconds