marking people brainlist 7s-s=

False. very few tools are available to assist system analysts and end users in analyzing data.

There are many tools available to assist system analysts and end users in analyzing data. Some commonly used tools include spreadsheets (such as Microsoft Excel), data visualization software (such as Tableau or Power BI), statistical analysis software (such as R or SPSS), and business intelligence software (such as SAP or Oracle).

These tools allow analysts and end users to process, manipulate, and visualize large volumes of data, as well as to perform complex statistical analyses and modeling. Additionally, with the advent of big data technologies, such as Hadoop and Spark, analysts and end users can now analyze vast amounts of data in real-time, using distributed computing systems.

In summary, there are many tools available to assist system analysts and end users in analyzing data, and these tools continue to evolve and improve over time.

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Thus, none of the lines are identical, and the only parallel lines are L1 and L2.

Two lines are parallel if they have the same direction or are identical. In order to determine which of the following four lines are parallel, we need to consider the direction of each line. Let's first consider L1 and L2.

L1: x = 1 + 6t, y = 1 - 3t, z = 12t + 5L2: x = 1 + 2t, y = t, z = 1 + 4t

Comparing the coefficients of t in each line, we see that the direction vectors of L1 and L2 are [6, -3, 12] and [2, 1, 4], respectively. Since these direction vectors are not proportional to each other, L1 and L2 are not parallel. Now let's consider L3.

L3: 2x - 2 = 4 - 4y = z + 1. To find the direction of L3, we need to write it in vector form. Setting 2x - 2 = 4 - 4y = z + 1 = k (for some constant k), we get 2x = 2 + k, y = -1/4(k - 4), and z = k - 1. Thus, the direction vector of L3 is [2, -1/4, 1].None of the previous three lines are identical. Finally, let's consider L4.L4: r = <3, 1, 5> +t <4, 2, 8>Since L4 is in vector form, its direction is simply the vector <4, 2, 8>.

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Answer:

5

Step-by-step explanation:

=14 + 6^2 ÷ (-4)

=14 + 36 ÷ (-4)

divide 36 by -4

=14 + (-9)

=14 - 9

=5

the unit normal vector to the curve with vector equation \vec r \, (t) =<1^t,\ln(4/t^2), \, \ln(e/(t^4)) > r (t)=<1 t ,ln(4/t 2 ),ln(e/(t 4 ))> at the point where t=2t=2 is \vec n = <0,0,-1>

A unit normal vector is a normal vector with magnitude 1, and it points in the direction that is perpendicular to the tangent to the curve at a given point.

To determine the unit normal vector to a curve, it's important to find the tangent first and then find the normal. In this case, we're looking for the unit normal vector to the curve with the vector equation \vec r (t) =<1^t,\ln(4/t^2), \ln(e/(t^4)) > at the point where t = 2.

To find the unit normal vector to the curve with the vector equation \vec r (t) =<1^t,\ln(4/t^2), \ln(e/(t^4)) > at the point where t = 2, it is necessary to find the tangent to the curve and then find the normal. This is a crucial step in understanding the geometry of curves in 3D space.

To find the tangent to the curve, we'll differentiate the vector equation with respect to t and evaluate it at t = 2. The derivative of \vec r (t) is given by:

d\vec r/dt = <1, -2t^-3, -4e^-t^-4>

So the tangent to the curve at t = 2 is:

d\vec r/dt = <1, -2(2)^-3, -4e^-2^-4> = <1, 1.5, -1.648721>

Next, we'll find the normal to the tangent by taking the cross product of the tangent with a fixed vector, for example, the unit vector i = <1,0,0>. The cross product of two vectors results in a vector that is perpendicular to both of them.

The cross product of the tangent and the unit vector i is given by:

\vec T x \vec i = <1, 1.5, -1.648721> x <1,0,0> = <0,0,-1.5>

Since the magnitude of the normal is not 1, we'll normalize it by dividing it by its magnitude:

\vec n = \vec T x \vec i / ||\vec T x \vec i|| = <0,0,-1.5> / ||<0,0,-1.5>|| = <0,0,-1>

So the unit normal vector to the curve with the vector equation \vec r (t) =<1^t,\ln(4/t^2), \ln(e/(t^4)) > at the point where t = 2 is given by:

\vec n = <0,0,-1>

This is the unit normal vector that points in the direction that is perpendicular to the tangent to the curve at t = 2. The magnitude of 1 ensures that it's a unit vector and the direction points towards the normal direction.

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The probability of not getting 6 at all is 11/36

The term "probability" is most commonly used to refer to the likelihood that a specific event (or set of events) will occur, expressed as a linear scale from 0 (impossibility) to 1 (certainty), or as a percentage between 0 and 100%. Statistics is the study of events subject to probability.

Given,

A die is rolled 2 times  

6 was on the first roll, but there was no 6 on the second,

6 came up on the second roll but not the first.

2 sixes

A) It is evident that 1/6 of the time you will roll a six.

B) There is a 5/6 chance of not getting a six on a single roll.

1/6x5/6 + 5/6x1/6 + 1/6x1/6

= 5/36 + 5/36 + 1/36

= 11/36

The probability of not getting 6 at all is 11/36

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Answer:

3

Step-by-step explanation:

We pick two points on the line

(-2,0) and (-1,3)

We can use the slope formula

m = ( y2-y1)/( x2-x1)

   = ( 3 - 0)/( -1 - -2)

   = (3-0)/( -1+2)

  = 3/1

  =3

Answer:

19.8

Step-by-step explanation:

Tan x = 0.36

x =

\( {tan}^{ - 1} {0.36}\)

x = 19.8

i hope this helped

Answer:

x = tan - 0.36

Step-by-step explanation:

\(x = tan - 1(0.36)\)

Number 1 as a factor, does not need to be explicitly written.

In other words: 1A = A

In our example, the above transformation has been applied once.

\(x = tan - 0.36\)

The mean amount spent on breakfast weekly is approximately $11.14, and the standard deviation is approximately $2.23.

To calculate the mean and standard deviation of the amount she spends on breakfast weekly (7 days), we need the individual daily expenditures data. Let's assume we have the following daily expenditure values in dollars: $10, $12, $15, $8, $9, $11, and $13.

To find the mean, we sum up all the daily expenditures and divide by the number of days:

Mean = (10 + 12 + 15 + 8 + 9 + 11 + 13) / 7 = 78 / 7 ≈ $11.14

The mean represents the average amount spent on breakfast per day.

To calculate the standard deviation, we need to follow these steps:

1. Calculate the difference between each daily expenditure and the mean.

  Differences: (-1.14, 0.86, 3.86, -3.14, -2.14, -0.14, 1.86)

2. Square each difference: (1.2996, 0.7396, 14.8996, 9.8596, 4.5796, 0.0196, 3.4596)

3. Calculate the sum of the squared differences: 34.8572

4. Divide the sum by the number of days (7): 34.8572 / 7 ≈ 4.98

5. Take the square root of the result to find the standard deviation: \(\sqrt{(4.98) }\)≈ $2.23 (rounded to the nearest cent)

The standard deviation measures the average amount of variation or dispersion from the mean. In this case, it tells us how much the daily expenditures on breakfast vary from the mean expenditure.

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Answer:

Nine hundred and eighty six million two hundred and eighteen thousand

three hundred and twenty

986,218,320 in word form is "Nine hundred eighty-six million, two hundred eighteen thousand, three hundred twenty."

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(a) The vector belongs to the row space of A and is nontrivial since it is not the zero vector.

(b) A is a 3-by-3 matrix and the basis for the nullspace has only 2 vectors, the rank of A is 3 (the maximum possible rank for a 3-by-3 matrix).

(c)  A is invertible.

a. To find a nontrivial vector in the row space of A, we can take the transpose of the basis for the nullspace. Since the nullspace basis is given as {[1 0 5], [1 1 2]}, the nontrivial vector in the row space would be obtained by transposing one of these vectors. Let's choose the first vector [1 0 5] and take its transpose: [1, 0, 5]. This vector belongs to the row space of A and is nontrivial since it is not the zero vector.

b. The rank of a matrix is defined as the maximum number of linearly independent rows or columns. Since A is a 3-by-3 matrix and the basis for the nullspace has only 2 vectors, the rank of A is 3 (the maximum possible rank for a 3-by-3 matrix).

c. A matrix is invertible if and only if its rank is equal to its number of columns. In this case, since the rank of A is 3 and the number of columns is also 3, the rank condition for invertibility is satisfied. Therefore, A is invertible.

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I think it is the question :

Suppose that A is a 3-by-3 matrix, and that  {[1 0 5 ] , [ 1 1 2 ]}  is a basis for the nullspace of A. a. Find a nontrivial vector in the row space of A. b. What is the rank of A ? c. Is A invertible? Why or why not?

The measure of the arc BED is 218°

This means that we need to find the angle of the arc BED on the given circle.

We need to remember that the total angle on a circle is 360°.

We can also see that the angle between B and C is 52°, and the angle between C and D is 90° (that is what the little square means).

And the angle between B and D (measured counterclockwise) is the angle we want to find, and it will be equal to 360° minus the two angles above, then we will get:

measure of the arc = 360° - 52° - 90°

measure of the arc = 218°

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Answer:

The finance charge is rounded to the nearest cent.

Answer:

Line 3 Balance  $(8)

Line 4 Balance $12

Line  5 Balance $ 6.05

Step-by-step explanation:

CHECK NO. DATE DESCRIPTION OF TRANSACTION PAYMENT DEPOSIT BALANCE --- 10/17

Beginning Balance --- --- $367.50 1125 10/18

CBC Audio (Headphones) $62.00 -62.00 $305.50

Line 1 1126 10/22 NY Sport (Basketball Shoes) $87.00 -87.00 $218.50

Line 2 Debit 10/25 Gary's Country Market $38.50 -38.50 $180.00

Line 3 1127 10/25 Iggy's Skate Shop (Skateboard) $188.00 -188.00 $-8.00

Line 4 10/25 Cash Deposit (Birthday Money) $20.00 +20.00 $12.00

Line 5 Debit 10/30 McDonuts $5.95 -5.95 $ 6.05

Travis made a mistake on line 3 where he had a cash of $ 180 but spent $ 188 and the ending balance shoul be negative 8 but he wrote only $ 8.

On the next line when he receives a deposit of $ 20 the negative $8 balance should be deducted from it but it is added as it is not negative.

Travis should have balance of $ 12 instead of $ 28 .

He then spents $ 5.95 which again deducted from $ 12 leaves only $ 6.05

But his wrong calculations depict  balance of $ 22.05 which is incorrect.

In this case, the proportion (79%) only applies to the sample of 481 consumers and thus it is a statistic because it represents the sample.

The distinction between a parameter and a statistic is that a parameter refers to a sample property, but a statistic is referred to as a population distribution characteristic.

For instance, a population mean is a parameter, but a sample mean is a statistic.

Although we can use it to draw conclusions about the population, in this case, the proportion (79%) only applies to the sample of 481 consumers and is thus only a statistic.

Therefore, This percentage is a statistic because it represents the sample.

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Answer:

Any value of x makes the equation true.

All real numbers Interval Notation: (−∞,∞)

Step-by-step explanation:

Answer:

1062

Step-by-step explanation: Find the area of each side then add it all up

Answer:

3,5

Step-by-step explanation:

You just move it to the left

Answer: 42 MPH

I hope this helps, and Happy Holidays! :)

Answer:

Step-by-step explanation:

if Melinda's family drove 378 miles in 9 hours, her average speed is

378/9=42 miles per hour

Answer:

Step-by-step explanation:

Answer:

Hence, The Volume of the Five Ice Cubes is 214.375 cm^3,  and the Volume of the Cylindrical Glass is approximately  196.35 cm^3.

 Since the volume of the Ice Cubes is GREATER than the Volume of the GLASS, The WATER from the MELTED ICE CUBES  WILL NOT fit in the glass.

Step-by-step explanation:

Calculate the volume of the Five Ice Cubes and the Volume of the Cylindrical Glass, Then Compare the two volumes to determine if the water from the melted ice cubes will fit in the glass.

        V cube  = a^3  = (3.5)^3  = 42.875 cm^3

       V total_cubes  =  5  *  V cube  =  5  *  42.875  =  214.375 cm^3

       V cylinder  =  π  * r^2 * h  =  π * (2.5)^2  *  10  =  62.5π  =  196

Hence, The Volume of the Five Ice Cubes is 214.375 cm^3,  and the Volume of the Cylindrical Glass is approximately  196.35 cm^3.  Since the volume of the Ice Cubes is GREATER than the Volume of the GLASS, The WATER from the MELTED ICE CUBES  WILL NOT fit in the glass.

I hope this helps!

never true is always 180

Answer:

C.

Step-by-step explanation:

Annie did not do it right

Answer:

C

Step-by-step explanation:

The probability that the balls are both white be 1/7.

Probability is a branch of mathematics that deals with numerical descriptions of how likely an event is to occur or how likely a proposition is to be true. The probability of an event is a number between 0 and 1, where 0 indicates the event's impossibility and 1 indicates certainty.

Number of black balls = 4

Number of white balls = 3

Total number of balls = 7

Number of ways of picking up a white ball out of 7 balls, P(W) = 3/7

Number of ways of picking up a second white ball ,P(W) = 2/6

Therefore, the probability of picking up 2 white balls

P(WW) = 3/7 \(*\) 2/6 = 1/7

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Answer:

1 1/4 cups

Step-by-step explanation:

Answer:

1 1/4 cups of punch.

Step-by-step explanation:

Since 2 1/2 cups of sherbet are needed to make 24 cups, and we need to make 12 cups of punch, it's basically 24 divided by 2. So we need to divide 2 1/2 by 2, which would be 1 1/4 cups.

The correct formula to find the area of the parallelogram is B) A = 14h

To derive the formula A = 14h for the area of the parallelogram, we need to understand that the base of a parallelogram is one of its sides. In this case, the length of the base is given as 14 centimeters.

The area of a parallelogram is calculated by multiplying the length of the base (b) by the corresponding height (h). In this case, the height is represented as h centimeters.

So, the formula for the area of the parallelogram is A = b × h.

Substituting the given value of the base length (b = 14) into the formula, we get:

A = 14h

Therefore, the correct formula to find the area (A) of the parallelogram in this scenario is:

B) A = 14h

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Answer:

they both are multiplucation Which means they both increse so ether the answers are wrong or the question its self is wrong.

The probability that the student makes it to the second class before it starts is very close to 0.

To find the probability that the student makes it to the second class before it starts, we can use the concept of linear combinations of random variables and the properties of normal distributions.

Let's define the random variable X as the total time it takes for the student to transition from the end of the first class to the start of the second class. Since X is a linear combination of independent normally distributed random variables (X1, X2, X3), we can use their means and variances to calculate the mean and variance of X.

The mean of X is the sum of the means of X1, X2, and X3:

μX = μ1 + μ2 + μ3 = 9:02 + 9:15 + 10 = 28:17 minutes.

The variance of X is the sum of the variances of X1, X2, and X3:

σX^2 = σ1^2 + σ2^2 + σ3^2 = (2.5)^2 + (3)^2 + (2.5)^2 = 15.25 minutes^2.

Now, we need to calculate the probability that X is less than or equal to 0, meaning the student arrives before the second lecture starts. Since X follows a normal distribution, we can standardize the variable and calculate the probability using the standard normal distribution table.

Z = (0 - μX) / σX = (0 - 28:17) / √15.25 ≈ -9.43.

Using the standard normal distribution table or a calculator, we can find the probability corresponding to Z = -9.43. The probability is essentially 0, as the value is significantly far in the left tail of the standard normal distribution.

Therefore, the probability that the student makes it to the second class before it starts is very close to 0.

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Answer:

your answer is 5.............

\(▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪\)

The Correct choice is :

Solution is in attachment ~

The postfix expression of "7+5-3*2(6*7)/4" is "7 5 + 3 2 * 6 7 * 2 * - 4 /". Evaluating the postfix expression gives the result of the expression. The prefix expression for the given infix expression is "/ - + 7 5 * 3 * 2 ( * 6 7 ) 4".

To convert the infix expression "7+5-3*2(6*7)/4" into postfix expression, we follow the rules of operator precedence and associativity. The postfix expression is obtained by placing operators after their operands.

The postfix expression for the given infix expression is:

"7 5 + 3 2 * 6 7 * 2 * - 4 /"

To evaluate the postfix expression, we use a stack data structure. We scan the postfix expression from left to right and perform the corresponding operations.

Starting with an empty stack, we encounter the operands "7" and "5". We push them onto the stack. Then we encounter the operator "+", so we pop the last two operands from the stack (5 and 7), perform the addition operation (7 + 5 = 12), and push the result back onto the stack.

We continue this process for the remaining operators and operands in the postfix expression. Finally, after evaluating the entire expression, the result left on the stack is the final answer.

To convert the infix expression into prefix expression, we follow similar rules but scan the expression from right to left. The prefix expression is obtained by placing operators before their operands.

The prefix expression for the given infix expression is:

"/ - + 7 5 * 3 * 2 ( * 6 7 ) 4"

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