An airplane leaves Los Angeles and travels 5 hours to New York City. The return trip travels along the same route and takes 6 hours and 15 minutes because the plane travels 99 mph slower due to a headwind. Find the distance the plane flies between the two cities.

I think c because from what remember taking this test

The approximate percent decrease in the number of customers from Saturday to Sunday is 33%. Therefore, the answer is option A: 33%

To find the approximate percent decrease in the number of customers from Saturday to Sunday, we first need to calculate the decrease in the number of customers:

Decrease = Saturday customers - Sunday customers

Decrease = 135 - 90

Decrease = 45

The percent decrease can be found by taking the decrease as a percentage of the original value (Saturday customers):

Percent decrease = (Decrease / Saturday customers) x 100%

Percent decrease = (45 / 135) x 100%

Percent decrease = 33.33%

Rounding to the nearest percent, we get that the approximate percent decrease in the number of customers from Saturday to Sunday is 33%. Therefore, the answer is option A: 33%.

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Your question is incomplete, but probably the complete question is :

You work as a cashier in a supermarket. On Saturday, you had 135 customers. On Sunday, you had 90 customers. What is the approximate percent decrease in the number of customers from Saturday to Sunday?

33%

45%

50%

90%

225%

The vertex focus of the parabola is (3,15) and the directrix is x=3.

1. Rewrite the equation in the form y = a(x - h)^2 + k

y = x^2 - 6x + 15

y = 1(x - 3)^2 + 15

2. The vertex focus is (h, k) = (3, 15)

3. The directrix is x = h = 3

By rewriting the equation in the form of y = a(x - h)^2 + k, we can find the vertex focus and directrix of the parabola. The vertex focus of a parabola is the point at which the graph changes direction, and is equal to (h, k). The directrix is the line at which the vertex focus is located, and is equal to x = h. For this equation, h = 3 and k = 15, so the vertex focus is (3, 15) and the directrix is x = 3.

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Answer:

110

Step-by-step explanation:

110/5 = 22

22 - 11 = 11

Answer:

P(-5) = 109

Step-by-step explanation:

     If the polynomial p(x) is divided by the linear polynomial (x-a), the remainder is p(a).

   Dividend = divisor * quotient + remainder.

   p(x) = (x-a) * q(x) + p(a)

Here, q(x) is the quotient and p(a) is the remainder.

      P(x) = 4x² - x + 4

     P(-5) = 4*(-5)² - 1*(-5) + 4

              = 4*25 + 5 + 4

              = 100 + 5 + 4

              = 109

Answer:

$500

Step-by-step explanation:

100-12=88

88/100=440/x

88x=100(440)

88x=44000

/88.  /88

x=500

hopes this helps

Answer: -2x(5y+6)

Step-by-step explanation:

Answer:

\(y = 1\)

Step-by-step explanation:

Rearranging the equation:

\(y = -8\)

Three points to be considered:

1. Above is a horizontal line cutting through the y-axis at y value of \(-8\).
2. A horizontal line has a slope (or gradient) of 0.
3. Parallel lines have the same slope (or gradient)

∴The straight line passing through (2, 1) will also have a zero slope. In addition, this is a horizontal line, which cuts the y-axis at y value of 1.
The equation of straight line:

y = 1

Answer:

A. 74

Step-by-step explanation:

777/3 = 259

2/7 of 259 is 2/7 times 259 and that is 74

74 people are going to an art or design institute

Answer:

(2,0)    ( -1,0)

Step-by-step explanation:

y =3x^2-3x-6

Let y = 0 and solve for x to find the x intercepts

0 =3x^2-3x-6

Factor out a 3

0 =3(x^2-x-2)

Factor inside the parentheses

0 = 3( x-2) (x+1)

Using the zero product property

x-2 =0    x+1 = 0

x=2      x = -1

(2,0)    ( -1,0)

Answer:

\(\large \boxed{\mathrm{a. \ x-intercepts: (-1,0) \ and \ (2,0)}}\)

Step-by-step explanation:

The x-intercept(s) is when y = 0.

3x² - 3x - 6 = 0

Factor left side of the equation.

3(x + 1)(x - 2) = 0

Set factors equal to 0.

x + 1 = 0

x = -1

x - 2 = 0

x = 2

The x-intercepts are (-1, 0) and (2, 0).

To compare the 3-month and 12-month moving average forecasts using the mean absolute deviation (MAD) criterion, we need to calculate the MAD for each model and then compare them. The MAD is a measure of the average magnitude of the forecast errors, and a lower MAD indicates a better forecast.

To calculate the MAD for the 3-month moving average model, we need to first calculate the forecasted values for each month by taking the average of the unemployment rates for the previous 3 months. For example, the forecasted value for April 2018 would be the average of the unemployment rates for January, February, and March 2018. We then calculate the absolute deviation between the forecasted value and the actual value for each month, and take the average of those deviations to get the MAD for the 3-month moving average model.

We can repeat this process for the 12-month moving average model, but instead of taking the average of the previous 3 months, we take the average of the previous 12 months.

Once we have calculated the MAD for both models, we can compare them to determine which model yields better results. Generally, a lower MAD indicates a better forecast. However, it is important to note that the MAD criterion only considers the magnitude of the forecast errors and does not take into account the direction of the errors (i.e., overestimation versus underestimation).

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Full Question ;

The accompanying dataset provides data on monthly unemployment rates for a certain region over four years. Compare 3- and 12-month moving average forecasts using the MAD criterion. Which of the two models yields better results? Explain. Click the icon to view the unemployment rate data. Find the MAD for the 3-month moving average forecast. MAD = (Type an integer or decimal rounded to three decimal places as needed.) A1 fx Year D E F G H I 1 2 3 1 с Rate(%) 7.8 8.3 8.5 8.9 9.4 9.6 9.4 9.5 9.7 9.9 9.8 10.1 9.9 9.7 9.8 9.91 9.7 9.4 9.6 9.4 9.3 9.5 9.9 9.5 9.2 9.1 8.9 A B Year Month 2013 Jan 2013 Feb 2013 Mar 2013 Apr 2013 May 2013 Jun 2013 Jul 2013 Aug 2013 Sep 2013 Oct 2013 Nov 2013 Dec 2014 Jan 2014 Feb 2014 Mar 2014 Apr 2014 May 2014 Jun 2014 Jul 2014 Aug 2014 Sep 2014 Oct 2014 Nov 2014 Dec 2015 Jan 2015 Feb 2015 Mar 2015 Apr 2015 May 2015 Jun 2015 Jul 2015 Aug 2015 Sep 2015 Oct 5 7 3 ) 1 2 3 1 5 7 9.1 ) 9. 1 2 3 1 5 7 ) 9.1 8.9 8.9 8.9 8.9 8.7 8.4 8.3 8.3 8.4 8.1 8.1 8.4 8.2 8.3 7.7 7.9 7.9 7.8 1 2 2015 Dec 2016 Jan 2016 Feb 2016 Mar 2016 Apr 2016 May 2016 Jun 2016 Jul 2016 Aug 2016 Sep 2016 Oct 2016 Nov 2016 Dec 3 1 5 3 2 2

Answer:

A: the sample size is less than 30

Step-by-step explanation:

Usually, the t-distribution is used instead of normal distribution in calculation of the mean of a normally distributed population when the sample size is small (n < 30) and if the population standard deviation is not known.

Thus, looking at the options, the correct one is Option A.

Answer:

4 :)

Step-by-step explanation:

Answer:

2+2 is 4

Step-by-step explanation:

t's just words and symbols we use to explain things. ... It's just symbols we use to represent one plus one equaling two.

Answer:

6.83 is the answer

Step-by-step explanation:

Answer:

Amount spent on equipment = 23% of $1400

= 0.23 x $1400

= $322

Answer:

I would say A because 6:3 can only equal 1/3.

Step-by-step explanation:

It would help if you formatted a bit better though. As the choices are not clear. ^^

The probability of getting numbers whose sum is a multiple of three is,

⇒ 1 / 3

Since, The term probability refers to the likelihood of an event occurring. Probability means possibility. It is a branch of mathematics that deals with the occurrence of a random event. The value is expressed from zero to one.

Here, We have;

There are 48 possible outcomes in this situation, and of those outcomes, the ones whose sums are a multiple of three are;

12, 21, 15, 51, 24, 42, 33, 18, 27, 36, 63, 45, 54, 48, 57, and 66.

So, that is 16 out of 48 possibilities,

⇒ 16/48,

⇒ 1/3.

Thus, The probability of getting numbers whose sum is a multiple of three is,

⇒ 1 / 3

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Using the concept of area of rectangle, we can say that the actual cost of putting flooring is $624.72.

The area of the floor can be found by using the formula to find area of rectangle.

Area=Length × Width

Floor length = 6 feet

Floor breadth= 19 feet

Area of floor = length × width

Area of floor = 19 × 6

Area of floor = 114 square foot

The cost of flooring 114 square foot at the price of $5.48 can be found using the given formula,

Actual cost of putting flooring = area × price of flooring per square foot

Actual cost of putting flooring= 114 × 5.48

Actual cost of putting flooring= $624.72

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If Mia sold 2 more hats on each suceeding day, after working 40 days it is expected Mia had sold a total of 1523 hats.

Day: Hats

You can notice the number of hats she will sell follow a pattern as there are only sequential odd numbers.

By following the sequence let's add the hats she will sell everyday:

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Answer:

\(\dfrac{1}{2}\) day

Step-by-step explanation:

Given that:

Owen who is an alien has only 4/5 of his socks clean.

and he wears 2/5 socks a day.

Out of his total 4/5 clean socks.

It will take him (4/5 ÷ 2/5) days to wash all his socks

i.e

the numbers of days since he washed all his socked is:

= \(\dfrac{4}{5} \div \dfrac{2}{5}\)

= \(\dfrac{4}{5} \times \dfrac{5}{2}\)

= \(\dfrac{1}{2}\)

Answer:

False

Step-by-step explanation:

The sequential search algorithm is very simple to implement. It scans all the elements in the array starting at the first element, examining each element in turn and stopping when it finds a match

However, it is very inefficient since you are comparing  all the elements prior to the given element

This could be very time consuming for large data arrays

False The sequential search algorithm is simple and most efficient to use with a large data array.

False. While the sequential search algorithm is simple to implement and understand, it is not the most efficient method for searching large data arrays. The sequential search algorithm checks each element in the array one by one until it finds the desired value, resulting in an average case-time complexity of O(n). In comparison, other search algorithms, such as the binary search algorithm, offer better efficiency, particularly when dealing with large datasets. The binary search algorithm, for instance, has a time complexity of O(log n), making it significantly faster for large data arrays.

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Answer:

238

Step-by-step explanation:

the absolute value function always gives a positive value, that is

| - a | = | a | = a

given

3 | 2x - 9 | + 7 ( substitute x = - 34 )

= 3 | 2(- 34) - 9 | + 7

= 3 | - 68 - 9 | + 7

= 3 | - 77 | + 7

= 3 | 77 | + 7

= 3 × 77 + 7

= 231 + 7

= 238

For the population variance the confidence interval of 95% with standard deviation s = 17 is equal to (176.22, 559.35).

Sample standard deviation s = 17

sample size 'n' = 25

population variance=  o2

To construct a confidence interval for the population variance,

Use the chi-square distribution,

The formula for the confidence interval is,

((n-1) × s^2)/chi2(a/2, n-1) ≤ o^2 ≤ ((n-1) × s^2)/chi2(1-a/2, n-1)

where chi-square(a/2, n-1) and chi-square(1-a/2, n-1) are the chi-square values for the given significance level a and degrees of freedom (n-1).

Substituting the given values, we get,

((25-1) × 17^2)/chi2(0.025, 24) ≤ o^2 ≤ ((25-1) × 17^2)/chi2(0.975, 24)

Calculating the chi-square values using a chi-square distribution attached table ,we get,

((24) × 17^2)/39.36 ≤ o^2 ≤ ((24) ×17^2)/12.40

Simplifying the expressions, we get,

176.22  ≤ o^2 ≤ 559.35

Therefore, the 95% confidence interval for the population variance is (176.22, 559.35).

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The given question is incomplete, I answer the question in general according to my knowledge:

Construct a 95% confidence interval for the population variance o2 if a sample of size 25 has standard deviation s = 17. Round the answers to two decimal places. The 95% confidence interval

Answer:

\(\dfrac{1}{12}$ gallons\)

Step-by-step explanation:

\(M$arie bought $ \dfrac{1}{2}$ gallon of milk\)

She exhausted the half gallon in 6 days.

Since she takes equal amount of milk per day

Her Unit Rate of Milk Consumption

\(=\dfrac{1}{2}\div 6\\ =\dfrac{1}{12}$ gallons per day\)

Marie drinks \(\dfrac{1}{12}\) gallons of milk per day.

Answer: 1/12

Step-by-step explanation:

there 90 men and 30 women in the class

The question isn't very clear. We woud be assuming:

The total number of men and women in the class = 120

The variables:

let the total number of men = m

let the total number of women = w

fraction of men with beards = three fifth = 3/5 of m

fraction of men without beards = 1 - 3/5 = 2/5 of m

fraction of women with long hair = 2/3 of w

fraction of women without long hair = 1- 2/3 = 1/3 of w

We are told 46 of them are not in the group stated above. We will take it as 46 men and women are not in the group above.

This means the fraction of men without beards and fraction of women without long hair are altogether = 46

46 = 2/5 of m + 1/3 of w

46 = 2m/5 + w/3 ....equation 1

The number of men and women in the group = 120 -46 = 74

74 = 3/5 of m + 2/3 of w

74 = 3m/5 + 2w/3 ....equation 2

Multiply equation 1 by 2:

92 = 4m/5 + 2w/3 ....equation 1

74 = 3m/5 + 2w/3 ....equation 2

subtract equation 2 from 1:

92 - 74 = 4m/5 - 3m/5 + 2w/3 - 2w/3

18 = m/5

5(18) = m

m = 90

Substitute the value of m in any of the equation. Using equation 2:

74 = 3(90)/5 + 2w/3

74 = 54 + 2w/3

74 - 54 = 2w/3

20 = 2w/3

cross multiply:

3(20) = 2w

60 = 2w

60/2 = w

w = 30

Therefore, there 90 men and 30 women in the class

Domain: {1, -2, -3, -6}

Range: {5, 4, 0, 2}

im not 100% sure but Im pretty sure it’s that

The put option should be worth $8.11 The current stock price of khhnon 8 - solvnson ப6) is $178 Instantaneous rate of return is 6% Instantaneous standard deviation of J.

J's stock is 30%Strike price is $171 Expiration date is 60 days from now The formula for the put option using the Black-Scholes model is given by: C = S.N(d1) - Ke^(-rT).N(d2)

Here,C = price of the put option

S = price of the stock

N(d1) = cumulative probability function of d1

N(d2) = cumulative probability function of d2

K = strike price

T = time to expiration (in years)

t = time to expiration (in days)/365

r = risk-free interest rate

For the given data, S = 178

K = 171

r = 6% or 0.06

T = 60/365

= 0.1644

t = 60N(d2)

= 0.63687

Using Black-Scholes, the price of the put option can be calculated as: C = 178.N(d1) - 171.e^(-0.06 * 0.1644).N(0.63687) The value of d1 can be calculated as:d1 = [ln(S/K) + (r + σ²/2).T]/σ.

√Td1 = [ln(178/171) + (0.06 + 0.30²/2) * 0.1644]/(0.30.√0.1644)d1

= 0.21577

The cumulative probability function of d1, N(d1) = 0.58707 Therefore, C = 178 * 0.58707 - 171 * e^(-0.06 * 0.1644) * 0.63687C = 104.13546 - 96.02259C

= $8.11

Therefore, the put option should be worth $8.11.

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Answer:

Exact form:

x = 4/5

Decimal Form:

x = 0.8

Step-by-step explanation:

Answer: -5  < x < -2 or (-5, -2)

Step-by-step explanation:

Graph- (-5, -2)

Inequality- -5  < x < -2

Step-by-step explanation:

a.

x = number of matching questions

y = number of essay questions

x >= 3

x <= 12

y >= 4

y <= 15

x + y <= 20

the delimiter lines are therefore

x = 3

x = 12

y = 4

y = 15

y = 20 - x

when you graph these lines, the corners (intersection points) of the inner shaded area are

(3, 4)

(12, 4)

(3, 15)

(12, 8)

(5, 15)

the other intersection points

(12, 15)

(3, 17)

(16, 4)

are outside the inner shaded area.

b.

10x + 25y = score

and this we want to maximize.

we have to try the 5 corners from a. and see, which one gives the maximum score.

(3, 4) gives

10×3 + 25×4 = 30 + 100 = 130

(12, 4) gives

10×12 + 25×4 = 120 + 100 = 240

(3, 15) gives

10×3 + 25×15 = 30 + 375 = 405

(12, 8) gives

10×12 + 25×8 = 120 + 200 = 320

(5, 15) gives

10×5 + 25×15 = 50 + 375 = 425

that is the most.

so, Phil should do 5 matching questions and 15 essay questions for maximum score.

Answer:

48r

Step-by-step explanation:

6(8r)

=6×(8r)

=(48r)

Answer:

48r

Step-by-step explanation:

6x8=48 uvu