Not sure of this, is this right?

True. Personal observation permits a system analyst to confirm the veracity of comments provided by interviewees and to establish if procedures run as reported.

Personal observation enables the analyst to gather firsthand information about the procedures and operations being used in an organization. This information can then be compared with what was stated during the interviews to verify the accuracy of the statements made. By observing the actual processes, the analyst can identify any discrepancies or areas for improvement, allowing for a more comprehensive and effective analysis.

The ease of learning and implementation of personal observation as a method for system analysis can vary depending on several factors such as the complexity of the system, the experience and training of the analyst, and the availability of resources.

In general, personal observation is a straightforward technique, but it can be time-consuming and requires careful planning and execution. The analyst must have strong analytical and observation skills and the ability to identify and document relevant information. Proper training and experience can help make the learning and implementation process smoother.

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Answer:

I don't really think so but it will really show you how your partner is with kids and how well they will handle it

Step-by-step explanation:

Answer:

Use the vertical line test

Step-by-step explanation:

The vertical line test is a method used to determine if a given relation is a function or not.

If when drawing the vertical line through the graph, it intersects with more than one point, then it is not a function

Answer:

100-170 bpm

Step-by-step explanation:

Compare the volume and surface area, it can be said that the volume of the sphere is approximately equal to the volume of the cube, but the cube has a greater surface area.

It is the space occupied by a body, it is calculated by multiplying its dimensions, for example: length, height and width.

Information about the problem:

Using the formula of the volume and the surface area of the sphere we get:

v(sphere)= 4/3 (π * r³)

v(sphere)= 4/3 *π*(4)^3 in^3

v(sphere)= 268.08 in^3

Rounding down = 268 in^3

surface area(sphere) = 4*π*r²

surface area(sphere) = 4*π*(4)^2

surface area(sphere) = 201.062 in^2

v(cube)= l³

v(cube)=(6.45)^3

v(cube)= 268.34 in^3

Rounding down = 268 in^3

surface area(cube) = 6*l²

surface area(cube) = 6 * (6.45)^2

surface area(cube) = 249.62 in^2

Therefore:

The volume of the sphere is approximately equal to the volume of the cube, but the cube has a greater surface area.

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The system of inequalities's point (4,8), where an is the number of apples and 8 is the number of peaches.

A pair of expresses or values that is neither equal in mathematics is referred to as an inequality. Thus, inequity results from imbalance. In mathematics, an inequality establishes the connection between two non-equal numbers. Egality and inequality are distinct things. Use the same equal symbol most frequently when two quantities are not equal (). Values of any size can be contrasted using a variety of inequalities. By changing the two faces until only the variables are left, many straightforward inequalities can be solved. However, a variety of factors support inequality: Both sides' negative values are split or added. Exchange the left and the right.

given

The following will be the solution to the expressions:-

0.75a + 1.5y = 15

a + y ≥ 12

To determine the values of a and y, solve both equations.

0.75a + 1.5(12 - a) = 15

0.75a + 18 - 1.5a = 15

-0.75a = -18 + 15

-0.75a = -3

a = 4

y = 12 - 4 = 8

The system of inequalities's point (4,8), where an is the number of apples and 8 is the number of peaches.

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The probability that the sample mean would differ from the population mean by more than 2.6 mm is 0.0152.

Probability is a way to gauge how likely something is to happen. According to the probability formula, the likelihood that an event will occur is equal to the proportion of positive outcomes to all outcomes. The probability that an event will occur P(E) is equal to the ratio of favorable outcomes to total outcomes.

Given the mean diameter of the bolt = 145 mm

variance = 49

random sample = 34

to find the probability when the population mean by more than 2.6 mm

calculating probability by z-score

z = (x - μ)/σ

σ = √(varience/n)

σ = √(49/34)

σ = 1.2004

and x - μ = 2.6

substitute the value in the formula,

z = 2.6/1.2004

z = 2.1659

so P(x - μ < 2.6) = 0.98484

and  P(x - μ > 2.6)  = 0.015158 = 0.0152

Hence probability is 0.0152.

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Answer:

The five terms of the sequence for a_1 = -2 and a_n = 2a_(n-1) + 5 if n >= 2 are:

The required value of x in a similar triangle is given as x = 24.

Similar triangles are those triangles that have similar properties,i.e. angles and proportionality of sides.

Here,
As both the triangles are similar,
AB / XY = BC / ZY
x /18 = 16/12
x = 4/3 × 18
x = 24

Thus, the required value of x in a similar triangle is given as x = 24.

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Answer:

2200

Step-by-step explanation:

The required expression that represents the area of the extended living room is 10.5(12 + x) square feet and (126 + 10.5x) square feet. Options C and E are correct.

The equation model is defined as the model of the given situation in the form of an equation using variables and constants.

here,
The length of a living room is 12 feet and its width is 10 1/2  [10.5]feet.
The new length of the living room = 12 + x
Area of the extended living room,
= 10.5{12+x} [since area= length × width]
= 126 + 10.5x

Thus, the required expression that represents the area of the extended living room is 10.5(12 + x) square feet and (126 + 10.5x) square feet. Options C and E are correct.

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1) The value of AA is [tex]\left[\begin{array}{ccc}25&0&0\\0&4&0\\0&0&16\end{array}\right][/tex]. 2) By solving the matrix equation, we got [tex]\left[\begin{array}{ccc}x_{1} \\y_{2}\\z_{3}\end{array}\right][/tex] = [tex]\left[\begin{array}{ccc}-131 \\-1\\7\end{array}\right][/tex]. 3) The value of x and y is -4 and 18

1) A = [tex]\left[\begin{array}{ccc}-5&0&0\\0&-2&0\\0&0&-4\end{array}\right][/tex]                

AA =  [tex]\left[\begin{array}{ccc}-5&0&0\\0&-2&0\\0&0&-4\end{array}\right][/tex]   [tex]\left[\begin{array}{ccc}-5&0&0\\0&-2&0\\0&0&-4\end{array}\right][/tex]  

AA = [tex]\left[\begin{array}{ccc}(-5)^2&0&0\\0&(-2)^2&0\\0&0&(-4)^2\end{array}\right][/tex]

AA = [tex]\left[\begin{array}{ccc}25&0&0\\0&4&0\\0&0&16\end{array}\right][/tex]

2)We are given            x₁ - 2x₂ + 3x₃ = 24

                                      -x₁ + 3x₂ - x₃ = -11

                                   2x₁ - 5x₂ + 5x₃ = 24

Now, AX = B

[tex]\left[\begin{array}{ccc}1&-2&3\\-1&3&-1\\2&-5&5\end{array}\right][/tex] [tex]\left[\begin{array}{ccc}x_{1} \\y_{2}\\z_{3}\end{array}\right][/tex] = [tex]\left[\begin{array}{ccc}24 \\-11\\42\end{array}\right][/tex]

As, AX = B => X = BA⁻¹      --(1)

Here A⁻¹ = (1/|A|)adjA

Where adjA is Adjoint of matrix A

|A| = 1

AdjA = [tex]\left[\begin{array}{ccc}10&7&-7\\3&-1&-2\\-1&1&1\end{array}\right][/tex]

Therefore, A⁻¹ = [tex]\left[\begin{array}{ccc}10&7&-7\\3&-1&-2\\-1&1&1\end{array}\right][/tex]

Using (1)

X = [tex]\left[\begin{array}{ccc}24 \\-11\\42\end{array}\right][/tex][tex]\left[\begin{array}{ccc}10&7&-7\\3&-1&-2\\-1&1&1\end{array}\right][/tex]

[tex]\left[\begin{array}{ccc}x_{1} \\y_{2}\\z_{3}\end{array}\right][/tex] = [tex]\left[\begin{array}{ccc}24 \\-11\\42\end{array}\right][/tex][tex]\left[\begin{array}{ccc}10&7&-7\\3&-1&-2\\-1&1&1\end{array}\right][/tex]

[tex]\left[\begin{array}{ccc}x_{1} \\y_{2}\\z_{3}\end{array}\right][/tex] = [tex]\left[\begin{array}{ccc}-131 \\-1\\7\end{array}\right][/tex]

3)  [tex]\left[\begin{array}{ccc}x+2&6&-5\\7&2y&2x\\2x+6&6&-5\end{array}\right][/tex] = [tex]\left[\begin{array}{ccc}2x+6&6&-5\\7&18&-8\\3&-8&11\end{array}\right][/tex]

So, x + 2 = 2x + 6

       2x - x = 2 - 6

              x = -4

     2y = 18

       y = 9

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Answer:

B X^6 Y^3

Step-by-step explanation:

Answer:

Step-by-step explanation:

I'll do the first part for you:

The number of 3/4 in 2 is [tex]=2/\frac{3}{4}[/tex]

That is the division equation.  Rearrange it to make the multiplication equation.  keep...change...flip.  Change the division to a multiplication and flip the fraction:

The number of 3/4 in 2 =[tex]=2.\frac{4}{3}[/tex]

The numeral succeeding of 777₈ is given by the equation A = 1000₈

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the numeral succeeding of 777₈ be A

Now , the equation will be

Now , base numbers work exactly the same as base 10 numbers

The same works with any other base number, take for example the base 8 number. When counting in base 8, we only have 7 digits available: (0,1,2,3,4,5,6,7) So when 0-{8},each the digit 7, we go immediately to 10

So ,

The decimal number of 777₈ = 511₁₀

So , the base 8 number of 512₁₀ A = 1000₈

Hence , numeral succeeding of 777₈ is 1000₈

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1) The 6th term of the geometric sequence is;  a₆ = 486

2) The 9th term of the geometric sequence is; a₉ = 729

The formula for the nth term of a geometric sequence is;

aₙ = a₁rⁿ⁻¹

where;

a₁ is first term

r is common ratio

n is position of term

1) The parameters are;

First term; a₁ = 2

common ratio; r = 3

Thus, the 6th term is;

a₆ = 2 * 3⁶⁻¹

a₆ = 2 * 3⁵

a₆ = 486

2) The parameters are;

First term; a₁ = 1/3

common ratio; r = 3

Thus, the 9th term is;

a₉ = (1/3) * (3)⁸⁻¹

a₉ = (1/3) * 3⁷

a₉ = 729

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The statement that is true about the transformation of segment AB is;

AB is reflected over the y-axis and is congruent to the image.

A reflection is a type of transformation that behaves like a mirror. Thus, It swaps all pairs of points that are on exactly opposite sides of the line of reflection. The line of reflection can be defined by an equation or by two points it passes through.

Now, the transformation rule for reflection about the y-axis is;

(x, y) = (-x, y)

In this graph, it is exactly a reflection about the y-axis and as such we can say that option A is the correct answer.

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Answer:

y=2x+9

Step-by-step explanation:

Point of intersection of y=3 & x+y=0

Point of intersection of y=3 & x+y=0put x=3 in x+y=0

Point of intersection of y=3 & x+y=0put x=3 in x+y=0x=−3

Point of intersection of y=3 & x+y=0put x=3 in x+y=0x=−3so the point is (−3,3)

Point of intersection of y=3 & x+y=0put x=3 in x+y=0x=−3so the point is (−3,3)2x−y=4

Point of intersection of y=3 & x+y=0put x=3 in x+y=0x=−3so the point is (−3,3)2x−y=4m=2

Point of intersection of y=3 & x+y=0put x=3 in x+y=0x=−3so the point is (−3,3)2x−y=4m=2y−3=2[x+3]

Point of intersection of y=3 & x+y=0put x=3 in x+y=0x=−3so the point is (−3,3)2x−y=4m=2y−3=2[x+3]y=2x+6+3

y=2x+9

The domain of function U(x) = x √(1-x²/a²) is x = a or x = 0. The function of U(x) is an odd function. When a = 1, the plot function is as the attached graph below. The optimum point of the function is x = 1/2 a.

The domain of function U(x) can be find by making U(x) equals to 0:

U(x) = x √(1 - x²/a²) = 0

U(x) = √x² - x⁴/a² = 0

U(x) = x - x²/a = 0

x - x²/a = 0

ax - x² = 0

x² - ax = 0

x (x - a) = 0

x = 0 or x = a

The function of U(x) is an odd function because its biggest order is 2.

If a = 1, then the value of U(x) would be:

U(x) = x √(1 - x²/a²)

U(x) = x √(1 - x²/1)

U(x) = x - x²

x = a = 1

U(x) = 1 - 1

U(x) = 0

The graph is as attached below

The critical point of U(x) function can be determined by differentiate the function equals to 0.

U(x) = x - x²/a

U'(x) = 1 - [(2ax - 0)/a²] = 0

U'(x) = 1 - 2x/a = 0

2x/a = 1

x = 1/2 a --> optimum point

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The domain of the function is x < a

Given that

U(x) = x√(1 - x²/a²) where a > 0

Set the radicand greater than or equal to 0

1 - x²/a² > 0

So, we have

1 > x²/a²

Rewrite as

x²/a² < 1

This gives

x² < a²

Take the square roots

x < a

This represents the domain

We have

U(x) = x√(1 - x²/a²) where a > 0

For even function;

U(x) = U(-x)

For odd function

U(-x) = -U(x)

So, we have

U(-x) = -x√(1 - (-x)²/a²)

U(-x) = -x√(1 - x²/a²) ---- not an even function because U(x) ≠ -U(x)

U(x) = x√(1 - x²/a²) ---- an odd function because U(-x) = -U(x)

Hence, it is neither

See attachment

The critical points are points where the function is defined and its derivative is zero or undefined

We have

U(x) = x√(1 - x²/a²)

a = 1

U(x) = x√(1 - x²)

Using a graphing tool, we have the critical points to be

x = ±1 and x = ±1/√2

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Answer: Lowest: Qatar, Highest: Denmark

Hope this helps :)

Step-by-step explanation:

Philippines - About $2.59 per gallon (USD)

USA - About $3.51 per gallon

India- About $4.83 per gallon (USD)

Qatar - About $2.18 per gallon (USD)

Denmark- About $5.93 per gallon

The approximate mass of the brain of a mouse that has a mass of 64 grams is 2 grams

We have been given:

Weight: 64 grams

The mouse's brain's approximate mass must be determined.

This inquiry is based on the calculation used to determine an object's mass of an animal brain.

Let B represent the estimated brain mass in grams and m represent the brain mass of a mammal in grams.

By applying the method to determine a mammal's brain mass,

[tex]B=\frac{1}{8} m^{\frac{2}{3} }[/tex]

Taking into account that m = 64 grammes,

[tex]B=\frac{1}{8}(64)^{\frac{2}{3} }[/tex]

[tex]B=\frac{1}{8}(4^{3} )^{\frac{2}{3} }[/tex]

B = 16/8

B = 2 grams

Consequently, a mouse's brain weighs around 2 grams.

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Answer:

101,168

Step-by-step explanation:

The value of 6 in the given number 35,629 is the hundreds value.

35,629.

You are trying to find a number in which the number 6 is in 1/10th of the value of the original number. In this case, divide the hundreds value by 10:

100/10 = 10

Place the value 6 in the tens digit place value for any number.

101,168 can be a answer choice.

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For the treatment of issues with the bile and pancreatic ducts, endoscopic retrograde cholangiopancreatography (ERCP) combines upper gastrointestinal (GI) endoscopy and x-rays.

ERCP is a procedure that doctors utilize to treat bile and pancreatic duct issues. If they want to treat issues during the procedure, medical professionals also utilize ERCP to identify issues with the pancreatic and bile ducts. Instead of using ERCP for diagnosis alone, clinicians may choose to use noninvasive tests, which do not physically enter the body. Noninvasive procedures like magnetic resonance cholangiopancreatography (MRCP), a form of magnetic resonance imaging (MRI) NIH external link, are less dangerous and can also identify a wide range of issues with the bile and pancreatic ducts.

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Answer:

Step-by-step explanation:

(a) f(-4) = 15

since x < -1

the function will be :-

-5x - 5

= -5(-4) - 5

= 20 - 5

= 15

(b) f(-1) = -2

since x >= -1

the function will be:-

x^2 + 2x - 1

= (-1)^2 +2(-1) - 1

= 1 - 2 - 1

= -2

(c) f(1) = 2

since x >= -1

the function will be:-

x^2 + 2x - 1

= (1)^2 + 2(1) - 1

= 1 + 2 - 1

= 2

The answer is c. lower than 215.3. If the CPI were recalculated with 1995 as the reference year, then the CPI for 2008 would be lower than 215.3.

This is because the CPI is calculated based on the cost of goods and services relative to the cost of the same goods and services in the reference year.

Since prices have generally increased since 1995, the cost of goods and services in 2008 will be higher than the cost of the same goods and services in 1995. Therefore, the CPI for 2008 will be lower than the CPI for 1995, which is currently 215.3.

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The mean of the sampling distribution of sample means is (21.515, 23.485).

Normal distribution, also known as the Gaussian distribution, is a probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean.

Given that a study A study on the latest fad diet claimed that the amounts of weight lost by all people on this diet had a mean of 22.5 pounds and a standard deviation of 5.9 pounds

Sampling is done for 72 people

According to central limit theorem if random samples are taken for large sizes, the sample mean would follow a normal distribution with mean = population mean.

Hence expected mean value of the sampling distribution = 22.5 ±margin of error provided samples are drawn at random

Here, 1+72% =1.72

Margin of error = 1.72(5.9/√106) =0.985

Hence mean of sample would lie between

(22.5-0.985, 22.5+0.985)

= (21.515, 23.485)

Therefore, the mean of the sampling distribution of sample means is (21.515, 23.485).

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A vehicle owner wants to calculate the total cost of his 2007 jeep compass with a MSRP of $18366. His monthly loan payment is $312.54 for 5 yrs after he puts down a $2000 payment.

a) T(m) = 312.54m + 2000

b) $20,752.4 is the total cost of the car.

c) he wound up shelling out almost $2,700 extra in interest.

The sum of money that has to be paid each week or month to fulfil the loan's requirements. This may be calculated using an amortisation table based on the principal, loan period, and interest rate.

Home purchase loans, vehicle loans, personal loans, and several student loans are typical examples. You may borrow and pay back money again using revolving loans. Secured loans, like house loans, are the least expensive loans in India. Although the utilisation is limited, they have low interest rates. For instance, you are only eligible for a house loan if you are purchasing a home.

Let,

m = number of months he has made payments on the car

T(m) = total amount paid after m months

a)

The states that he makes a loan payment of $312.54 every month.

It also states that he made a $2,000 down payment.

Thus, T(m) = 312.54m + 2000

This means that at m = 0 months, the total paid is just the down payment ($2,000), which makes sense.

After 1 month (m = 1), the total is the down payment plus 1 month's payment of $312.54.

b)

The loan amount is for 5 years.

Since there are 12 months in a year, that's a total of 12 × 5 = 60 payments he'll be making.

So, the total cost of the car will be figured out when m = 60.

T(60) = (312.54 × 60) + 2000 = $20,752.4

c)

The interest paid will be the total amount he's paid on the car minus the MSRP (i.e. how much it would have cost if he had just paid cash upfront).

Interest paid = Total Paid - MSRP = $20,752.4 - $18,366.00 = $2,386.4

For paying off the car in small increments over a long period of time,

he wound up shelling out almost $2,700 extra in interest.

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Answer:

1. 45

2. I think 19 ( not entirley sure. )

Step-by-step explanation:

Answer:

A. -infinity < x < +infinity

Step-by-step explanation:

the domain is the interval or set of all valid x (function input) values.

The solutions for the equation |z+7|=|z-4| general is z = -7/2 and z = 11/2.

To solve the equation |z + 7| = |z - 4|, we consider two cases:

z + 7 = z - 4

z + 7 = -(z - 4)

In the first case, solving for z we get:

z + 7 = z - 4

11 = -4

z = -7/2

In the second case, solving for z we get:

z + 7 = -(z - 4)

z + 7 = -z + 4

2z = 11

z = 11/2

So, the solutions are z = -7/2 and z = 11/2.

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