I also need question three

On average, customers needing routine repairs wait for 1.67 hours, while customers needing major repairs wait for 2.5 hours before being served.

Let's consider the average number of customers waiting and the throughput rates for routine repairs and major repairs. With one hoist dedicated to routine repairs and one hoist dedicated to major repairs, the throughput rate for routine repairs is 3 cars per hour, and the throughput rate for major repairs is 1 car per hour. The average number of customers waiting for routine repairs is 5, and the average number of customers waiting for major repairs is 3. Using Little's Law, which states that the average number of customers in a system is equal to the arrival rate multiplied by the average time spent in the system, we can calculate the average waiting time for each type of customer. For routine repairs, the arrival rate is 3 cars per hour, and the average number of customers waiting is 5. Therefore, the average waiting time for routine repairs is 5/3 = 1.67 hours. Similarly, for major repairs, the arrival rate is 1 car per hour, and the average number of customers waiting is 3. Therefore, the average waiting time for major repairs is 3/1 = 3 hours. By dedicating one hoist to routine repairs and one hoist to major repairs, the average waiting time for routine repairs is reduced compared to the previous scenario when all repairs were done on a first-come, first-served basis. However, the waiting time for major repairs has increased due to the lower throughput rate for major repairs compared to routine repairs.

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Answer:

its going to be D (x,y) - (x-2,y-4)

Step-by-step explanation:

a. Total perimeter = 89.12 ft

b. Total area = 174. 24 ft²

To determine the perimeter, we have;

Perimeter of triangle = a + b + c = 8 + 6 + 10 = 24ft

Circumference of a circle is expressed a;s

= 2πr

Circumference = 2× 3.14 × 4

Multiply the values

Circumference = 25. 12 ft

Perimeter of a square = 4a)

Perimeter = 40 ft

Total perimeter = 40 + 25.12 + 24 = 89.12 ft

For area;

Triangle = 1/2bh = 1/2 (48) =24 ft²

Square = a² = 100ft²

Circle = 3.14 × 4² = 50.24ft²

Total area = 174. 24 ft²

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The time study analyst should account for at least 55 observations in order to calculate the mean time per item with a 95.5% confidence level and a 0.4 minute margin of error.

We can use the sample size calculation formula in a confidence interval to get the number of observations required for a time study with the specified parameters:

[tex]n = (Z * \sigma / E)^2[/tex]

Where:

n = sample size

Z = The target confidence level's Z-score (95.5% translates to roughly 1.96)

σ = procedure standard variation (1.5 minutes per piece)

E = margin of error (0.4 minutes)

Plugging in the values, we can calculate the sample size:

[tex]n = (1.96 * 1.5 / 0.4)^2[/tex]

[tex]n = (2.94 / 0.4)^2[/tex]

[tex]n = 7.35^2[/tex]

n ≈ 54.02

We round up the sample size to the next whole number because we can't have a portion of an observation:

n = 55

Therefore, the time study analyst should prepare for at least 55 observations to estimate the mean time per item with a margin of error of 0.4 minutes and a confidence level of 95.5%.

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Answer:

y=-5/6x-4

Step-by-step explanation:

Answer:

0.32

Step-by-step explanation:

0.2 to the fifth power is 0.00032, so that simplified is 0.32.

Answer

0.32

Step-by-step explanation:

"0.2222" was replaced by "(2222/10000)". 4 more similar replacement(s)

                  1111

Simplify   ————

                  5000

       22            222        2              1111

 (((———•4)•{————}3——)•5)•(————2)

      100           1000      10            5000

1111 = 11•101

(1111)2 = (11•101)2 = 112 • 1012  2.2     5000 = 23•54 (5000)2 = (23•54)2 = 26 • 58

22    ( 222   2     (112•1012)

 (((———•4)•{————}3——)•5)•——————————

    100     1000  10      (26•58)  

           1

Simplify   —

           5

     22    ( 222  1     (112•1012)

 (((———•4)•{————}3—)•5)•——————————

    100     1000  5      (26•58)  

           111

Simplify   ———

           500

     22    111  1     (112•1012)

 (((———•4)•———3)—)•5)•——————————

    100    500  5      (26•58)  

5.1     111 = 3•37

(111)3 = (3•37)3 = 33 • 373  5.2     500 = 22•53 (500)3 = (22•53)3 = 26 • 59

     22    (33•373)   1     (112•1012)

 (((———•4)•———————— ÷ —)•5)•——————————

    100    (26•59)    5      (26•58)  

        (33•373)      1

Divide  ————————  by  —

        (26•59)       5

6.1    Dividing fractions

To divide fractions, write the divison as multiplication by the reciprocal of the divisor :

(33•373)     1       (33•373)     5

————————  ÷  —   =   ————————  •  —

(26•59)      5       (26•59)      1

Dividing exponents:

6.2    51   divided by   59   = 5(1 - 9) = 5(-8) = 1/58

     22        (33•373)         (112•1012)

 (((——— • 4) • ————————) • 5) • ——————————

    100        (26•58)           (26•58)  

           11

Simplify   ——

           50

    11        (33•373)         (112•1012)

 (((—— • 4) • ————————) • 5) • ——————————

    50        (26•58)           (26•58)  

Multiplying exponents

8.1    52  multiplied by  58   = 5(2 + 8) = 510

Dividing exponents:

8.2    21   divided by   26   = 2(1 - 6) = 2(-5) = 1/25

Equation at the end of step

8

:

  (11•33•373)        (112•1012)

 (——————————— • 5) • ——————————

   (510•25)           (26•58)  

Dividing exponents

9.1    51   divided by   510   = 5(1 - 10) = 5(-9) = 1/59

 (11•33•373)   (112•1012)

 ——————————— • ——————————

   (59•25)      (26•58)  

Multiplying exponents

10.1    111  multiplied by  112   = 11(1 + 2) = 113

Multiplying exponents:

10.2    59  multiplied by  58   = 5(9 + 8) = 517

Multiplying exponents:

10.3    25  multiplied by  26   = 2(5 + 6) = 211

Final result :

 (113•33•373•1012)          

 ————————— = 0.32

     (517•211)              

Answer:

the answer is b) 32

Step-by-step explanation:

The value of 'x' comes as 32.

An equation with two ratios set equal to one another is called a proportion.

For instance, a/b = c/d or a:b = c:d are written as proportions.

We must take the following actions in order to apply proportions to solve ratio word problems:

The given proportion is,

x/30 = 0.4/0.375

x = (0.40×30)/0.375

x = 32

The value of 'x' is found to be 32.

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Answer:

StartFraction 7 Over 8 EndFraction of an hour

7/8 hour

Step-by-step explanation:

Total movie time = 3 1/2 hours

Lily turned the movie off One-fourth of the way through,

1/4 of 3 1/2

= 1/4 ×7/2

= 7/8 hour

how much time did she spend watching it.

Time spent watching the movie = 3 1/2 hour - 7/8 hour

= 7/2 - 7/8

= 14-7/8

= 7/8 hour

StartFraction 7 Over 8 EndFraction of an hour

Answer:

7/8 of an hour

Step-by-step explanation:

Answer:

yeah its A

Step-by-step explanation:

Nosaira's work is correct, but there is one solution and rather than no solution.

The correct option is A.

A pair of algebraic equations with the equal symbol (=) in the center and the same value is referred to as an equation.

The steps she used to solve the equation are valid, and she correctly determined that x = 0.

As per the information provided,

3(2x + 1 ) = 2(x + 1) + 1

6x + 3 = 2x + 2 + 1

6x + 3 = 2x + 3

4x = 0

x = 0

However, this means that the equation does have a solution, contrary to her conclusion that there is no solution.

This is likely a mistake in her interpretation of the solution, rather than an error in her algebraic work.

Therefore, there is only one solution.

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The value of the variable is x > 16/3. Option D

From the information given, we have that the inequality is expressed as;

16 (1/4x - 1/2) > 24 - 2x

First, we have to expand the bracket, we have;

16 ×1/4x - 16 × 1/2 > 24 - 2x

Divide the values, we get;

4x - 8 > 24 - 2x

Now, we have to collect the like terms, we get that;

4x + 2x > 24 + 8

Add the collected values of like terms, we have;

6x > 32

Now, divide both sides by the coefficient of x, we have;

x > 32/6

Divide the values, we have;

x > 16/3

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Answer:

18 years

Step-by-step explanation:

Rule of 72

(72)/(interest)=years to double

72/4=18

Answer:

11 guppies

Step-by-step explanation:

my teacher told me the answer

Answer:

18x-6

Step-by-step explanation:

simplify the expression

Answer:

A(Malthus)

Step-by-step explanation:

because i'm stunning and cunning for miraculis ladybug and legacies

The graph names are matched with the corresponding numbers as follows: 1 corresponds to linear graph (A), 2 corresponds to hyperbola (D), 3 corresponds to ellipse (C), and 4 corresponds to parabola (B).

The given graph equations can be analyzed to determine their shapes and corresponding names.

1. The equation y = 2r + 1 represents a linear graph, where the variable r has a coefficient of 2 and there is no squared term present.

2. The equation x² - y² = 1 represents a hyperbola, as it involves the difference of two squared terms.

3. The equation 2 = 0 is a contradiction, as it states that 2 is equal to 0, which is not possible. Therefore, it does not correspond to any specific graph.

4. The equation 2r + y = 4 represents a linear graph, similar to equation 1, with the variables r and y having coefficients.

By matching the numbers with the corresponding lettered graph names, we find that 1 corresponds to linear graph (A), 2 corresponds to hyperbola (D), 3 corresponds to ellipse (C), and 4 corresponds to parabola (B).

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Answer:

23 kids

Step-by-step explanation:

b. the variable is not correlated with the regression error. if an explanatory variable is exogenous, it means that the variable is not correlated with the regression error term. This assumption is important for obtaining unbiased and consistent parameter estimates in regression analysis.

If an explanatory variable is exogenous, it implies that the variable is not correlated with the regression error term. In other words, the exogenous variable is unrelated to the factors that are not explicitly included in the regression model and captured by the error term.

Exogeneity is an important assumption in regression analysis, as violating this assumption can lead to biased and inconsistent parameter estimates. When an explanatory variable is exogenous, it means that its value is determined independently of the other variables in the model and the error term.

Let's briefly discuss the other options:

a. The variable cannot be correlated with other explanatory variables: Exogeneity does not necessarily imply that the variable cannot be correlated with other explanatory variables. Explanatory variables can be correlated with each other as long as they are not correlated with the regression error term.

c. The variable must have zero mean: Exogeneity does not require that the variable has a zero mean. Exogeneity refers to the lack of correlation between the variable and the regression error, not its mean value.

d. The value of the variable must be randomly assigned: Exogeneity does not require that the value of the variable is randomly assigned. Exogeneity implies that the variable is not affected by the regression error and is determined independently of the other variables in the model, but it does not necessarily imply a random assignment of values.

In summary, if an explanatory variable is exogenous, it means that the variable is not correlated with the regression error term. This assumption is important for obtaining unbiased and consistent parameter estimates in regression analysis.

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Step-by-step explanation:

length is x

p=(33+×)2

(33+×)2>776

66+2×>776

×>710

×>355

the length of the rectangle is greater/equals 355

Answer:

7

Step-by-step explanation:

35 / 5 = 7

Answer:

7 = 35 cars/5 rows= 7 cars per row

Answer:

225

Step-by-step explanation:

Answer:

225

Step-by-step explanation:

15x15

5x5=25

5x1+2=7

add 0

1x5=5

1x1=1

75+150=225

From the given problem, we can say that the model of the number of earning increases in the next decade is a binomial random variable. Here, success is defined as an increase in annual earnings. We have to estimate the probability of success and assume that the estimated probability of success is the actual probability of success.

We need to find the probability that earnings will increase in exactly four of the next ten years. According to the given problem, we can say that the probability of earning increases is represented as a binomial distribution. A binomial distribution is used to model the number of successes in a given number of trials. It is used when there are two possible outcomes, success or failure, in each trial. It is the probability distribution of the number of successes in a fixed number of independent trials with only two possible outcomes.Success is defined as an increase in annual earnings. So, the probability of success can be represented as p and the probability of failure can be represented as q. Therefore, q = 1 - p. The binomial distribution can be written as:P(x) = nCx * px * (1 - p)^(n - x)Here, nCx represents the number of ways of choosing x successes from n trials. px represents the probability of x successes in n trials. (1 - p)^(n - x) represents the probability of (n - x) failures in n trials.Now, we can use the formula of binomial probability distribution to calculate the probability of earning increases in exactly four of the next ten years. We have to find the value of P(x = 4) for n = 10, p = 6/10 = 0.6, and q = 1 - p = 1 - 0.6 = 0.4.P(x = 4) = 10C4 * (0.6)^4 * (0.4)^6P(x = 4) = 210 * 0.1296 * 0.16777P(x = 4) = 0.02938So, the probability of earnings increasing in exactly four of the next ten years is 0.02938.

The probability of earnings increasing in exactly four of the next ten years is 0.02938.

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Answer:

7^-5

Step-by-step explanation:

7^-8 .* 7^3=7^-8+3 =7^-5

Answer:

y = 7

Step-by-step explanation:

Step 1: Define

y = -x + 5

x = -2

Step 2: Substitute and evaluate for y

y = -(-2) + 5

y = 2 + 5

y = 7

Answer:

he would only have 5 gallons left after 4 hours

Let's denote the number of tickets sold as .

The revenue function can be calculated by multiplying the number of tickets sold by the ticket price:

Revenue() = * (30 - 0.25)

The cost function consists of two components: the cost per person and the fixed costs for gas and miscellaneous expenses:

Cost() = * 30 - 0.25^2 + 200

To find the profit function, we subtract the cost function from the revenue function:

Profit() = Revenue() - Cost()

Profit() = * (30 - 0.25) - ( * 30 - 0.25^2 + 200)

Profit() = -0.25^2 + 30 - 0.25^2 + 200

To maximize profit, we need to find the value of that maximizes the profit function. This can be achieved by finding the vertex of the quadratic equation () = -0.25^2 + 30 + 200.

The x-coordinate of the vertex can be calculated using the formula = - / (2), where = -0.25 and = 30:

= -30 / (2 * -0.25)

= -30 / -0.5

= 60

Therefore, the number of tickets needed to maximize profit is 60.

To find the maximum profit, we substitute = 60 into the profit function:

Profit(60) = -0.25 * (60)^2 + 30 * 60 + 200

Profit(60) = -0.25 * 3600 + 1800 + 200

Profit(60) = -900 + 2000

Profit(60) = 1100

Hence, the maximum profit is $1100.

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Answer:

46

Step-by-step explanation:

Angle Formed Outside = 1/2(Difference of Intercepted Arcs)

The arcs are 226 and (360 -226 =134)

y = 1/2 ( 226 - 134)

y = 1/2( 92)

y =46

Answer:

There are 192 employees in the company.

Step-by-step explanation:

Let x be the total number of employees

Use ratio and proportion

[tex]\frac{120}{x} =\frac{5}{8} \\5x = 120(8)\\5x = 960\\\frac{5x}{5} = \frac{960}{5} \\x = 192[/tex]

x = 192