What is the value of x?

Check the picture below.

[tex]~~~~~~\textit{initial velocity in feet} \\\\ h(t) = -16t^2+v_ot+h_o \quad \begin{cases} v_o=\textit{initial velocity}&16~\frac{ft}{s}\\ \qquad \textit{of the object}\\ h_o=\textit{initial height}&192~ft\\ \qquad \textit{of the object}\\ h=\textit{object's height}&h\\ \qquad \textit{at "t" seconds} \end{cases} \\\\\\ h(t)=-16t^2+16t+192\hspace{5em}f(x)=-16x^2+16x+192[/tex]

now, keeping in mind that x-axis is the seconds, however a parabola could go into the 2nd, 3rd and 4th Quadrants, but for this case, we only need it in the 1st Quadrant, because the seconds are positive, it begins at 0 seconds and goes up, then down and hits the ground later on when f(x) = 0, hmmm when is that?

[tex]\stackrel{f(x)}{0}=\stackrel{ \textit{hits the ground} }{-16x^2+16x+192}\implies 0=-16() \\\\\\ 0=x^2-x-12\implies 0=(x+3)(x-4)\implies x= \begin{cases} -3 ~~ \bigotimes\\\\ ~~ 4 ~~ \checkmark \end{cases}[/tex]

now, both values are valid for "x", however for this specific case, we can't have negative seconds, so the negative value won't work.  So the appropriate domain or values for "x" are from 0 to 4, the object went up and down in 4 seconds flat.

The probability that the thread length of a randomly selected bolt is farther than 2. 5 standard deviations from its mean value is 0.62%.

If the thread length of bolts is normally distributed, then we can use the concept of probability to determine the probability that the thread length of a randomly selected bolt is farther than 2.5 standard deviations from its mean value.

This can be calculated using the area under the normal curve.

Specifically, the area to the right of 2.5 standard deviations is 0.0062, meaning that there is only a 0.0062 probability (or 0.62%) that the thread length of a randomly selected bolt is farther than 2.5 standard deviations from its mean value

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Using Hamilton's method of apportioning, 21 salespeople can be assigned in the table in the following order:

2, 5, 6, 8.

The approach that now bears his name was first proposed by Alexander Hamilton. Congress endorsed his approach in 1791, but President Washington rejected it. Later, in 1852, it became widely used until 1911. He starts by calculating the precise number of items that each group needs.

Since in the interested question it's about salesperson assigned, we’ll use the language of shift and hours, so we can determine how many salespersons each shift should get.

Now total no. of customers given = 125 + 305 + 439 + 515

                                                        = 1375

Now total no of salesperson available = 21.

So, the divisor = 1375/21

                        = 65.47

Now using Hamilton's method when we divide the average customers per shift by the divisor, we get the no. of salesperson assigned.

So, the salesperson assigned are:

Morning = 125/65.47

              = 2

Midday = 305/65.47

             = 5

Afternoon = 430/65.47

                 = 6

Evening = 515/65.47

               = 8 (Decimals rounded according to Hamilton's principle)

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The number of children who ordered hamburgers from class A = ( 5/6 )A , where A is the total number of students in the class A

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 number of students in class A = A

Let the number of students in class B = B

Let the number of students in class C = C

Now , the equation will be

The number of students who ordered hamburgers is = ( 5/6 )A

The number of students who ordered hot dogs is = ( 2/4 )B

The number of students who ordered hot dogs is = ( 1/2 )B

The number of students who ordered chicken wings is = ( 1/2 )C

Hence , the number of students who ordered hamburgers , hot dogs and chicken wings are ( 5/6 )A , ( 1/2 )B and ( 1/2 )C respectively

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Answer: 15a

Step-by-step explanation: 6 + 9 = 15, 6a + 9 = 15a

Answer: The answer should be 0.207%

Step-by-step explanation:

540.54/261040.5

54054/26104050

429/207175

0.00207 X 100/100

0.207/100

0.207%

Answer:

15.11

Step-by-step explanation:

first you have to change 182% to a decimal (1.82) then multiply it by the number of hours (8.3) then you get your answer 15.106. last round it to the nearest tenth (15.106) and you get 15.11

The side lengths of rectangle B, given that they are proportional to rectangle A would be :

To find proportionality, the dimensions of Rectangle B which correspond to Rectangle A, need to be divisible by, or be able to divide Rectangle A's dimensions without leaving a remainder.

The side lengths of 3 cm and 1. 75 cm are proportional because:

= Dimensions A / Dimensions of B

= 6 / 3 :  3. 5 / 1. 75

= 2 : 2

The side lengths of 5. 25 and 9 cm are also proportional because :

= 9 / 3 : 5 . 25 / 1 . 75

= 3 : 3

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The rest of the question is:

What could be the side lengths of rectangle B?

A. 3cm and 1.75cm

B. 5cm and 2.5cm

C.7 cm and 7cm

D. 12cm and 5 cm

E. 5.25cm and 9cm

Therefore , the solution of the given problem of linear equation comes out to be the decision variables x1, x2, x3, and x4 must be non-negative.

The formula y=mx+b is used to draw a simple regression graph. The inclination is B, and the y-intercept is m. It is frequently referred to as a "simple algorithm incorporating many factors" even though the section before it includes independent parts. Bivariate linear equations only contain two variables. Application problems with linear equations have no known answers. Y=mx+b, also known as mx+b, provides a number of straightforward equations.

Here,

To solve this linear programming problem, we can use the following decision variables:

Let x1 = number of pancakes

Let x2 = number of eggs

Let x3 = number of sausage patties

Let x4 = number of slices of toast

The objective function is to minimize cost:

Minimize Z = 0.5x1 + 0.2x2 + 0.3x3 + 0.1x4

Subject to the following constraints:

Calories: 120x1 + 90x2 + 280x3 + 70x4 >= 420

Iron: 1.2x1 + 1.8x2 + 2.4x3 + 0.8x4 >= 5

Calcium: 10x1 + 20x2 + 90x3 + 20x4 >= 400

Protein: 3x1 + 6x2 + 9x3 + 3x4 >= 20

Fiber: 2x1 + 0.5x2 + 1x3 + 1x4 >= 12

Fat: 2x1 + 6x2 + 20x3 + 1.5x4 <= 20

Cholesterol: 50x1 + 190x2 + 60x3 + 0x4 <= 30

The decision variables x1, x2, x3, and x4 must be non-negative.

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C) 2.5 kHz, C) 15, A) 101010, D) CA35, A) (A), A) XOR, B) Exclusive OR, A)True, A) (A + B)C, B) Variable complements can be eliminated by using Karnaugh maps.

K-maps, commonly referred to as Karnaugh maps, are visual tools for simplifying digital circuits and Boolean algebraic formulas. In order to make Boolean functions simpler for use in digital electronics, Maurice Karnaugh first presented them in 1953. K-maps are used to consolidate terms with similar values and get rid of extraneous terms in the truth table of a Boolean function. With a grid of cells corresponding to all conceivable combinations of binary input values, the map is a two-dimensional representation of a truth table. Depending on the truth value of the relevant word in the truth table, the cells in the grid are either filled with 0s or 1s.

The fundamental benefit of employing Karnaugh maps is that they give the Boolean expression a visual representation, making it simpler to spot patterns and understand the expression. They can also be used to check the accuracy of the final expression and find flaws in digital circuits. Karnaugh maps can be used to quickly and effectively simplify complicated digital circuits, which cuts down on the time and effort needed for circuit design.

Karnaugh maps are perfect for designing and optimizing digital circuits because they may be used to simplify big or complex Boolean statements. For more effective and efficient results, they can be combined with other digital design tools, such as logic gates.

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Answer:

Step-by-step explanation:

14

The required equation of the line passing through (4,2) and parallel to y = 1/2x - 3 is y = 1/2x.

The slope of the line is a tangent angle made by line with horizontal. i.e. m =tanx where x in degrees.

Here,
The slope of the given line,
y = 1/2x - 3
m = 1/2

The slope of the parallel lines is always equal

Now, the Equation of the parallel line passing through the point (4, 2) is given as
y - y₁ = m (x - x₁)
y -2 = 1/2(x - 4)
y = 1/2x

Thus, the required equation of the line passing through (4,2) and parallel to y = 1/2x - 3 is y = 1/2x.

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The HCF of the numbers is 1078

From the question, we have the following parameters that can be used in our computation:

183260 and 2900898

Next, we factorize each number

This is represented as

183260 = 1078 * 170

2900898 = 1078 * 2691

The common factor above is

Comon factor = 1078

Hence. the HCF is 1078

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Answer: If the service rate is 6 customers per hour, the mean service time can be calculated as 1/6 = 0.1 hours or 6 minutes. The negative exponential distribution is commonly used to model the service time distribution in queuing theory. The cumulative distribution function (CDF) of the negative exponential distribution is given by:

F(x) = 1 - e^(-λx)

where λ = 1/μ, where μ is the mean service time (in this case, μ = 0.1 hours or 6 minutes).

So, the probability that the service time will be less than or equal to 6 minutes can be calculated as:

F(6) = 1 - e^(-0.1 * 6) = 1 - e^(-0.6) ≈ 0.5488

So, the answer is approximately 0.549, which is closest to option (b).

Step-by-step explanation:

Answer:

Below

Step-by-step explanation:

Volume of a cylinder = area of end X height =  pi r^2 * h

  r = 4 in    h = 10 in

volume = pi (4)^2 * 10 =    160 pi in^3      or    ~  503 in^3

Answer:

160π in.³

Step-by-step explanation:

Get the circle area then multiply for the height. In the end, devide the result by 3,14 (π).

π* . r²                                  50,24 . 10*
π* . 4²                                 502,40 in.³ (cylinder volume)
50,24 (circle area)            

obs: 502,4 leads you to a non-comma π result, considering π as 3,14. If you round, the correct way will be transforming into 502. But 502/3,14 is equal to 159,87..., infinite non-repetitive numbers.

Result in π = 160π* in.³

r - circle radius

10* - height

π* - 3,14 (Used that way)

The unit rate for the speed of Runner A and B is 12 and 15 ft / sec respectively, where Rubber B is faster.

A unit rate means a rate for one of something.

Given that, Two runners are training for their next competitions. Each runner is able to run a certain distance in proportion to the time. The table displays the distance Runner A can run in relation to the time. Meanwhile, the graph on the right displays the distance Runner B can run in relation to time. We need to find the unit rates for both runners,

Runner A =

Unit rate = distance / time

= 54 / 4.5

= 12 ft / sec

Therefore, unit rate for the speed of Runner A is 12 ft / sec

Runner B =

According to graph, the Runner B can run 75 ft in seconds

Unit rate = distance / time

= 75 / 5

= 15 ft / sec

Therefore, unit rate for the speed of Runner B is 15 ft / sec

Since, the speed of Runner B is greater than Runner A therefore, Rubber B is faster.

Hence, the unit rate for the speed of Runner A and B is 12 and 15 ft / sec respectively, where Rubber B is faster.

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Therefore , the solution of the given problem of standard deviation comes out to be the typical distance between the observed and predicted foot lengths is 1.61 centimeters.

Variance is a measure of difference used in statistics. The average variance between the data and indeed the mean is calculated using the mathematical formula of that figure. By comparing each data point's value to the mean, it incorporates all data points into its computations, unlike some other number measures of variability.

Here,

D. The typical distance between the observed and predicted foot lengths is 1.61 centimeters.

The standard deviation of the residuals measures the typical distance between the observed values and the predicted values (based on the regression line).

In this case, the regression analysis is for foot length and arm span, and the standard deviation of the residuals tells us about the typical distance between the observed foot lengths and the predicted foot lengths based on the regression line.

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According to the Centers for Disease Control

and Prevention, kids should get C) at least 60 minutes of exercise each day.

Exercise is a movement activity that has an important role for health. With exercise, one's body becomes healthier and stronger. Not only maintaining physical health, exercise also affects spiritual health.

The aim of exercise is to improve one's health. In addition to improving physical fitness, exercise can also improve and improve the performance of the human brain so that it can work more optimally. Therefore, exercise is considered to be able to increase one's self-confidence.

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The perimeter of the square is 40m

The formula for calculating the area of a square is given as;

A =  a²

Given that;

Substitute the value

100 = a²

Find the square root of both sides

a = 10m

The formula for the perimeter of a square is expressed as;

Perimeter = 4a

Substitute the value into the formula;

Perimeter = 4(10)

expand the bracket

Perimeter = 40 m

Hence, the value is  40 m

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No, the product of 7/8 multiplied by 2/9 will not be greater than either of the two factors.

A fraction is a mathematical concept that can be used to express a portion of a whole or a number that can be written as the ratio of two integers. In a fraction, the top number is referred to as the numerator, while the bottom number is referred to as the denominator.

Here,
To find the product, we can multiply the two fractions,

(7/8) × (2/9) = (7 × 2) / (8 × 9)
                = 14/72 = 1/6

Since 1/6 is less than both 7/8 and 2/9, the product is not greater than either of the two factors.

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The ratio of Kenny's weight to Melvin's weight is 6/7.

Ratio is defined as the relationship between two quantities where it tells how much one quantity is contained in the other.

The ratio of a and b is denoted as a : b.

Given that,

Kenny’s weight is 6/7 times Melvin's weight.

Let x be the weight of Melvin.

Then, Kenny's weight = 6/7 x, as per the information given.

Ratio of Kenny’s weight to Melvin's weight = (6/7 x) / x = 6/7

Hence the required ratio of Kenny's weight to Melvin's weight is 6/7.

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The equation that represents each change is given as follows:

a) y = 2^x-  6.

b) y = 2^(x + 1).

c) y = -2^x.

A translation happens when either a figure or a function are moved horizontally or vertically.

The four translation rules for functions are given as follows:

Additionally, when a function is reflected over the x-axis, we have that the function's definition is multiplied by -1.

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Answer:

y=-7/2x-9/2

Step-by-step explanation:

Answer:

2.15 * 10⁶

Step-by-step explanation:

1,000,000= 1 * 10⁶

2,150,000= 2.15 * 10⁶

Answer:

The grouped frequency distribution for the data is shown below.

A grouped frequency distribution is a way of summarizing and organizing raw data into a more manageable and meaningful form. The data is divided into intervals or "classes", and the number of data points that fall into each class is counted and recorded as the frequency of that class. This allows for easier interpretation and comparison of the data, as well as identifying patterns or trends. The grouped frequency distribution is commonly displayed in a table or a histogram.

Given that,

79, 85, 71, 83, 78, 67, 70, 87, 81, 86, 74, 67, 68, 76, 66, 72, 76, 80

Now, arranging the given data in ascending order,

66, 67, 67, 68, 70, 71, 72, 74, 76, 76, 78, 79, 80, 81, 83, 85, 86, 87

The grouped frequency distribution for the data:

Test Scores                   Frequency

65.5 - 71.5                        6

71.5 - 77.5                         4

77.5 - 83.5                        5

83.5 - 89.5                        3

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