Find the value of x
a. 65
b. 48.7
c. 77
d. 39.3

Answer:

infinite because she can write as mutcha nd on as many asshe wats

Answer:

10 $ a year

Step-by-step explanation:

Answer:

16 dollars

Step-by-step explanation:

earned in first 6 years: 100 dollars

100/6 is roughly 16 dollars

hope this helps! :)

Answer:

how are we supposed to answer this

Answer:

Hewo ❤

Step-by-step explanation:

❤ how are you? ❤

A 120-by-5 matrix named "grades" has been created to represent the exam grades of 120 students across 5 units. The matrix contains randomly generated marks in column 1 and corresponding grades in column 2, with scores ranging from 0 to 100.

To create the matrix "grades" with dimensions 120-by-5, random data generation techniques can be employed. The first column represents the marks obtained by each student, while the second column stores the corresponding grades. The scores range from 0 to 100, indicating the full range of possible marks in the exams.

To generate random data, MATLAB offers several functions such as "rand" or "randi". In this case, the "randi" function can be utilized to generate random integers within the desired range. By using a loop to iterate through each row of the matrix, random marks can be assigned to each student.

Additionally, the grades can be assigned based on the marks obtained using appropriate thresholds. These thresholds can be predefined, or a grading scheme can be designed to determine the grades based on the marks.

By following these steps, the matrix "grades" can be populated with random exam scores and corresponding grades for 120 students across 5 units.

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MATLAB DATA CREATION Create a 120-by-5 matrix of elements for 120 student exam grades for 5 units to be stores as matrix grades. This part is random data generation. So, you are expected to be innovative in your data creation. The exams are scored on a single scale of 0 to 100. Use column 1 for marks and column 2 for grades.

Answer:

B

Step-by-step explanation:

The student's mistake was between Step 1 and Step 2.

Here, on the left side, they added 6x and 2x. The result should be 8x, not 4x.

It should be 8x-15=3x-75, not 4x-15=3x-75.

A data set has a mean of 55 and a standard deviation of 6. The value 62 falls in approximately the 12.19th percentile of the data set.

To determine the percentile that the value 62 falls in, we need to calculate its z-score and then use the z-table to find the corresponding percentile.

The z-score measures the number of standard deviations a value is from the mean. It is calculated using the formula:

z = (x - μ) / σ

Where:

z is the z-score

x is the value (62 in this case)

μ is the mean of the data set (55)

σ is the standard deviation of the data set (6)

Plugging in the values, we have:

z = (62 - 55) / 6

z = 7 / 6

z ≈ 1.1667

To find the percentile corresponding to this z-score, we can use the z-table. The z-table provides the area under the standard normal distribution curve for different z-scores.

Looking up the z-score of 1.1667 in the z-table, we find that the area to the left of this z-score is approximately 0.8781. This means that approximately 87.81% of the data falls below the value of 62.

To determine the percentile, we subtract this value from 1 (to account for the area to the right of the z-score):

Percentile = 1 - 0.8781

Percentile ≈ 0.1219

Therefore, the value 62 falls in approximately the 12.19th percentile of the data set.

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Complete Question:

A data set has a mean of 55 and a standard deviation of 6. What percentile does the value 62 fall in?

Step-by-step explanation:

a diagram is necessary. please provide a diagram.

The given LP problem can be solved using graphical and Big M methods. The graphical solution involves plotting the constraints and determining the feasible region and optimal solution. The Big M method involves introducing artificial variables and using a two-phase approach to find the optimal solution. In this case, the LP problem has a unique optimal solution.

(a) To solve the problem graphically, we first plot the constraints on a graph. The first constraint, 3x1 + x2 ≥ 4, can be represented by a line with points (0, 4) and (4/3, 0). The second constraint, 2x1 + x2 ≤ 4, is represented by a line with points (0, 4) and (2, 0). The third constraint, x1 + x2 = 3, is a straight line passing through (3, 0) and (0, 3). The feasible region is the intersection of the shaded regions determined by these three constraints. We can then find the optimal solution by evaluating the objective function at the corners of the feasible region. The maximum value occurs at the corner (4/3, 0), where z = 4/3.

(b) To solve the LP problem using the Big M method, we introduce artificial variables to convert the inequalities into equalities. We then use a two-phase approach to find the optimal solution. In the first phase, we minimize the sum of the artificial variables by adding them to the objective function with a large coefficient (M). The constraints are solved to obtain an initial feasible solution. In the second phase, we remove the artificial variables and solve the modified objective function. In this case, since the initial feasible solution has no artificial variables in the optimal solution, the second phase is not necessary. The optimal solution obtained from the first phase is x1 = 1, x2 = 2, with z = 0.

(c) In the graphical solution, the basic solutions occur at the corners of the feasible region. The basic solution (4/3, 0) is feasible, and the objective function value at this point is z = 4/3. In the Big M method, the basic solution obtained in the first phase is x1 = 1, x2 = 2, which is also feasible. The objective function value at this basic solution is z = 0.

(d) The LP problem does not have alternative optimal solutions because there is only one feasible region and the objective function has a unique maximum value. Therefore, the problem does not suffer from infeasibility or unboundedness.

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Answer:

-36x+55

Step-by-step explanation:

3(16−4x(3))+7

=(3)(16)+(3)(−12x)+7

=48+−36x+7

next you have to combine like terms

=48+−36x+7

=(−36x)+(48+7)

=−36x+55

see the figure below to better understand the problem

we have that

tan(10∘)=140/x -----> by TOA

solve for x

x=140/tan(10∘)

x=794 ft

therefore

The answer is 794 feet

The probability of winning by picking the number 30 in roulette is 1/38.

In the game of roulette, the wheel consists of 38 spaces, with numbers 0 through 36 and an additional space marked 00. When you pick a specific number, such as 30, the probability of that number coming up on the wheel can be determined by calculating the ratio of favorable outcomes to the total number of possible outcomes.

In this case, there is only one favorable outcome, which is the ball landing on the number 30. The total number of possible outcomes is 38 since there are 37 numbered spaces (0 through 36) and one additional space for 00. Therefore, the probability of winning by picking the number 30 is 1 out of 38.

To put it simply, if you were to play roulette many times, you would expect the number 30 to come up approximately once every 38 spins on average. This probability remains the same for each individual spin, as each spin of the roulette wheel is an independent event.

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Answer:

x = 1/2,-3

Step-by-step explanation:

I think the answer is x = 1/2, -3.

The probability that there will be exactly three pink balls, and exactly 2 green balls among the seven balls drawn is 0.033 or 3.3%.

We need to consider the probabilities of each event happening to calculate the probability of drawing exactly three pink balls and exactly two green balls among the seven balls drawn with replacement

The probability of drawing a pink ball is 1/6 since there is one pink ball out of a total of six balls in the bin. Similarly, the probability of drawing a green ball is 4/6 since there are four green balls. The probability of drawing any specific combination of balls is the product of their individual probabilities.

For exactly three pink balls and two green balls, we can arrange them in different orders. The number of ways to choose 3 out of 7 positions for pink balls is given by the combination formula:

C(7,3) = 7! / (3! × 4!) = 35.

Similarly, the number of ways to choose 2 out of the remaining 4 positions for green balls is C(4,2) = 4! / (2! × 2!) = 6.

Therefore, the probability of this specific combination occurring is (1/6)³ × (4/6)² × 35 × 6 = 0.0327, which is approximately 0.033 or 3.3%.

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Answer:

Yes, its geometric

r = 2

Step-by-step explanation:

GP : 4, 8, 16, 32, .....

Let the term be denoted by " t ".

t1 = 4

t2 = 8

t3 = 16

t4 = 32

Let the common difference be " r ".

r1 = t2 / t1

= 8 / 4

r1 = 2

r2 = t3 / t2

= 16 / 8

r2 = 2

r3 = t4 / t3

= 32 / 16

r3 = 2

Since, the common differences are same,

r = 2

and,

the given sequence is geometric.

The solutions are given below.

A triangle is a polygon with three edges and three vertices. It is one of the basic shapes in geometry. A triangle with vertices A, B, and C is denoted \triangle ABC. In Euclidean geometry, any three points, when non-collinear, determine a unique triangle and simultaneously, a unique plane.

here, we have,

Part A

the dotted line formes the thrid side of the triangle.

part B

The length is the unknon side increases while kepping the known side lenths fixed, measuremnt of anggle Z will increas. So, the tringle will not fir the given conditions anymore.

part c

If the length of he unknown side decrases while keeping h known side lengths fixed,the measure of angle will decrease so he tringle will not fit the given conditions anymore.

part D

You know the given conditions for the triangle are fixed you also know the unknown side length is fixed. What dose the this tell you angles adjacent to the unknown side.

part e

The given condiction are fixed and the unknown side lenghtis fixed, the angles adjacent to the unknown side must much also be fixed.

part f

Given two side lengths and the measurement of the angle between them, only one triangle can be constructed. Part G The length of the unknown side (c) is 9.76 centimeters

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Answer:

3/4

Step-by-step explanation:

3 states that are in the southwest region border Mexico which means that your fraction is 3/4 and 3/4 cannot be simplified anymore because it is in it's simplest form.

To use logistic regression with a categorical dependent variable, at least one independent variable must be measured at the nominal or ordinal level.

Logistic regression is a statistical model used to predict categorical outcomes, typically binary outcomes (e.g., yes/no, success/failure). The dependent variable in logistic regression is categorical, representing different categories or classes. To predict this categorical outcome, independent variables (also known as predictors or features) are used. These independent variables can be of various types, such as continuous, ordinal, or nominal.

However, to properly apply logistic regression, it is necessary to have at least one independent variable that is measured at the nominal or ordinal level. This is because logistic regression models are designed to handle categorical data, and having such variables allows for the estimation of probabilities and the prediction of class membership based on the given independent variables.

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Answer:

7m and 49 m^2

Step-by-step explanation:

i am not sure on the second answer

Minimization of  f(x) = |x+3| + x^3 at the endpoints (-2 and 6)  the minimum value of the function is approximately 3.84, which occurs at x= \sqrt{1/3}

within the given interval.

To minimize the function subject to the constraint f(x) = |x+3| + x^3 that x lies in the interval [-2, 6], we need to find the value of x that minimizes f(x) within that interval.

First, let's analyze the function f(x). The absolute value term |x+3| can be rewritten as:

|x+3| =

x+3 if x+3 >= 0

-(x+3) if x+3 < 0

Since the interval [-2, 6] includes both positive and negative values of x+3, we need to consider both cases.

Case 1: x+3 >= 0

In this case, f(x) = (x+3) + x^3 = 2x + x^3 + 3

Case 2: x+3 < 0

In this case, f(x) = -(x+3) + x^3 = -2x + x^3 - 3

Now, we can find the minimum of f(x) within the given interval by evaluating the function at the endpoints (-2 and 6) and at any critical points within the interval.

Calculating the values of f(x) at x = -2, 6, and the critical points, we can determine the minimum value of f(x) and the corresponding value of x.

Since the equation involves both absolute value and a cubic term, it is not possible to find a closed-form solution or an exact minimum value without numerical methods or approximation techniques.

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Answer:

2/15

Step-by-step explanation:

Answer: y=(2/5)x-3

Step-by-step explanation:

\(\displaystyle\\The\ slope=\frac{2}{5}\ \ \ \ \ (0,3) \\y=\frac{2}{5}x+b \ \ \ \ \ (1)\\\)

Substitute the coordinates of the point (0,3) into equation (1):

\(\displaystyle\\-3=(\frac{2}{5}) (0)+b\\\\-3=b\\\\Thus,\\\\y=\frac{2}{5}x-3\)

Answer:

Surface Area varies by object/shape.

Ask your teacher/learning helper for those formulas of surface area

Step-by-step explanation:

Surface area is the sum of all faces (or surfaces) on a 3D shape. A cuboid has 6 rectangular faces. To find the surface area of a cuboid, add the areas of all 6 faces. We can also label the length (l), width (w), and height (h) of the prism and use the formula, SA=2lw+2lh+2hw, to find the surface area.

Answer:

2. 3520 yds

3. 15840 ft

8. 27 in

Step-by-step explanation:

2. There are 1760 yards in a mile. Since we're looking for the number of yards in 2 miles, we just have to multiply this number by 2.

2 · 1760 = 3520 yds

5. There are 5280 feet in a mile. Since we're looking for the number of feet in 3 miles, we just have to multiply this number by 3.

3 · 5280 = 15840 ft

8. There are 12 inches in a foot. This means that 2 feet equals 24 inches [2 · 12 = 24]. Since we have to find the number of inches in 2 feet and 3 inches, we just have to add 3 to 24. This equals 27 inches.

Step-by-step explanation:

Unknown side length is   the L sidelength (14 cm) minus the small R sidelength(5)  = 9 cm

then the perimeter is this unknown + all of the other given numbers added together

Answer:

Step-by-step explanation:

I still think your equations are wrong...

4000/4000 not 400/400 since the total investment is to be $8000

not $800

Step-by-step explanation:

2000 A+ 6000B=520

4000A+4000B        =480

~~~~~~~~~~~~~~~~~~~~~

2000 A+ 6000B=520

-2000A - 2000B   =-240  

4000B = 280

B=7%

A=5%

The midpoint of diagonal PR is: B. (5, 4).

The midpoint of diagonal QS is: D. (5, 4).

The midpoint of the diagonals: E. coincide.

This implies that the diagonals of the parallelogram PQRS G. are equal to each other.

In order to determine the midpoint of a line segment with two (2) end points, we would add each end point together and then divide by two (2):

Midpoint = [(x₁ + x₂)/2, (y₁ + y₂)/2]

For line segment PR, we have:

Midpoint of PR = [(4 + 6)/2, (7 + 1)/2]

Midpoint of PR = [10/2, 8/2]

Midpoint of PR = [5, 4].

For line segment QS, we have:

Midpoint of QS = [(8 + 2)/2, (7 + 1)/2]

Midpoint of QS = [10/2, 8/2]

Midpoint of QS = [5, 4].

In conclusion, we can reasonably infer and logically deduce that the midpoint coincides and the diagonals of parallelogram PQRS are equal to each other.

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Answer:x − x^{2} − 1.

Step-by-step explanation:

.

20 + 2 + 2 + 9,  20 + 4 + 9 add 24+9 by making tens.

What is an example of tens and ones?

There are always tens and ones in two-digit numerals. As an illustration, the tens place of the number 56 is represented by 5 and the ones place by 6, respectively.

                      Here, each rod is one ten and is made up of ten ones. First fact: As 1 ten, 2 tens, 3 tens, 4 tens, and so on, the numbers 10, 20, 30, 40, and so forth can be written.

Where do the ones and tens go?

A location with a value of 1 in the system of places and values. In the number 23, the one's place is occupied by 3. a place with a value of 10 in the system of place-values. 2, which is in the tens place, is the number 23.

24+9 by making tens

= 20 + 2 + 2 + 9

    20 + 4 + 9

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Given the points A(3,4) and B(-1,10), we can find the distance between them using the following function:

then, we have the following: