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Mathematics Questions and Answers November 07, 2021

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find the Z score for which the area to its right is 0.21 around up to two decimal

Q13. Find the average rate of change for the function f(x) = 3/(x - 2) from the values 4 to 7. a. 7 b. 1/3 c. -3/10 d. 2

Solve the following system of equations: 4x - 5y = -25 -7x +2y=-17

Last week there was an earthquake that measured as a magnitude of 3.2 on the Richter scale. Today you hear on the radio that there was a second earthquake that was 27 times more intense than the first. What was the magnitude of the second earthquake on the Richter scale?

If the population of a certain county was 100,000 in 1998 and 110,571 in 2008, and if the formula y = P 0 e ht applies to the growth of the county's population, estimate the population of the county in 2023. ( P 0 is the initial population. Round your value of h to four decimal places. Round your answer to the nearest whole number.)

a) Find the area under the normal curve to the left of z=3 plus the area under the normal curve to the right of z=3 2)Assume that the random variable X is normallydistributed, with mean=42 and standard deviation=7. Compute the probability. P(x 39)=? 3)Assume the random variable X is normallydistributed, with mean = 5 5 and standard deviation sigma

I need help. Solving with radicals. I have to show all of the work, and I think I have gotten it wrong the few times I have tried, Can someone please help me? \f
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Discuss whether or not the winning history of the team you selected follows a normal distribution. Provide rationale. Baltimore Orioles haved played from 1901 to 2017. Games played are 18,137. Wins are 8,604. Losses are 9,423. Win/Loss percentage is .477

For the function f(x) = 6x 4 - 7x 3 - 10x 2 +17x - 6 a. State the degree of the polynomial. b. Use the Rational Zero Theorem to list all of the possible rational zeros. c. Use a graphing calculator to determine which numbers in the list of possible rational zeros are probable rational zeros (indicated by the x-intercepts of the graph) d. Use

sebutkan ada apa saja teknik yang termasuk dalam Probability sampling dan Nonprobability sampling

Suppose that the New England Colonials baseball team is equally likely to win any particular game as not to win it. Suppose also that we choose a random sample of20 Colonials games. Estimate the number of games in the sample that the Colonials win by giving the mean of the relevant distribution (that is, the expectation of the relevant random

If\tthe\texpression\trepresenting\tthe\ttotal\tplay\tarea\tis\twritten in\tthe\tformat\t,\tax^2\t+\tbx\t+\tc\twhat\tare\tthe\tvalues\tof\ta\t,b\t,\tand c? My\tAnswer: 2x(x)\t+\t5x\t+6x\t+(6)(5) 2x^2\t+11x\t+\t30 a\t=\t2 b\t=\t11 c\t=\t30

Use the rate-by-area method to determine the minimum amount of carbon dioxide required to protect a diptank 45 ft. long and 5 ft. wide, and a drain board 10 ft. long and 5 ft. wide, using a discharge time of 30 seconds. (3 pts)

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Assume that a 30-month CD purchased for$2000 pays simple interest at an annual rate of 5.5%. How much total interest does it earn? What is the balance at maturity?

What is the difference between a permutation and a combination? What are some practical examples of when you would use each?

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A wine manufacturer is concerned that the percentage of alcohol in each bottle may not be the 13% as advertised on the bottle. A random sample of 31 bottles is tested. The average alcohol percentage is 12.58% and the standard deviation is 0.25%. Assume alcohol content is normally distributed. How would you define the rejection region for this test

the odds in favour of the Blackhawks winning the Stanley cup are 2:6 . The probability the nearest thousandth that the Blackhawks win the Stanley cup is A - 0.750 b - 0.667 c- 0.250 d-0.333

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The amount of carbon dioxide (in pounds per 15,000 cubic miles) released by a certain SUV depends on its fuel efficiency according to the formula W=30x 2 1950x+43,000(12x33) wherexis the fuel efficiency of an SUV in miles per gallon. According to the model, what is the fuel efficiency of the SUV with the least carbon dioxide pollution? x= mi per

Let R > 0. Evaluate ff em+y2dmdy, D (a) where D is the reginn given by m2 + y2 5 R2, (b) where D is the reginn given by m2 + y2 E R2 and .1: + y 2 0, 3 (e) where D is the reginn given by m2 + y2 E R2 and :r y 5 0

If an object is propelled upward from a height of s feet at an initial velocity of v feet per second, then its height h after t seconds is given by the equation he = 16 t^2 +vt+s, where h is in feet. If the object is propelled from a height of 44 feet with an initial velocity of 64 feet per second, its height h is given by the equation h equals16

Find the equation of the regression line for the given data. Then construct a scatter plot of the data and draw the regression line. (The pair of variables have a significant correlation.) Then use the regression equation to predict the value of y for each of the given x-values, if meaningful. The number of hours 6 students spent for a test and

One positive integer is 6 6 less than twice another. The sum of their squares is 569 569 . Find the integers.

Suppose 16 coins are tossed. Find the probability of getting the following result using the binomial probability formula and the normal curve approximation. Exactly 8 heads

Find dy dx by differentiating implicitly. Express your answers in terms of x and y . a) 3 xy y 2 = 5 b) 2 y 3 = x 2 3 x + 2 y

Jenna and Caitlin entered into a partnership without a partnership agreement. Jenna invested $20,000 in the business while Caitlin invested $40,000. Jenna spent 20 hours a week and Caitlin spent 40 hours a week in the business. How much of this year's profit of $36,000 would be distributed to Caitlin?

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In kick boxing, the energy needed to break a board of standard width and thickness varies inversely with the length of the board. If 4 Joules of energy are required to break an 18-inch board, how many Joules of energy are required to break a 20-inch board?

Crystal reads 25 pages in 1/2 hour. Write an equation to represent the relationship between the number of pages Crystal reads and how much time she spends reading. Let p = number of pages and t = number of hours.

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In a factorial mixed-design ANOVA with the following output: F (3, 91) = 4, p = .003, eta2 = .06, which is the degree of freedom corresponding to the number of conditions or levels of the independent variables (minus 1 per level of each IV and multiplied)? A) .003 B) 91 C) 3

After a real estate fee of 8% had been deducted from the proceeds of a property sale, the vendor of the property received $88090. What was the amount of the real estate fee?

Give a formal proof of the statement P P. (Remember: Bonus problems are optional. If you hand them in, your work will be scored and counted towards your Bonus Point tally, which has nothing to do with your grade.)

1 Exercise 5: Aircraft Performance For this week's assignment you will revisit your data from previous exercises, therefore please make sure to review your results from the last modules and any feedback that you may have received on your work, in order to prevent continuing with faulty data. 1. Selected Aircraft (from module 3 & 4): Piper J-4 Cub

Please help me to solve this exercise Find the inverse Laplace transform of the following functions. S 42 a) b) C) 4s + 9 $2 - 49 6 d e) 25 + 5 (5+ 5 ) Answer UJ a COS - b) 6sinh 7t c )+3 d) e) pest 4
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ind the distance d(P 1 , P 2 ) between the points P 1 and P 2 . P 1 = (1, 7); P 2 = (-7, -2) a. 17 b. 1 c. 145 d. 72

Which of the following are specific steps in the process known as "Event Analysis"? Question 45 options: 1) Collect data and establish likely events. 2) Establish event segments from the data available. 3) Order and sequence the associated event segments. 4) All of the above

A moving firm charges a flat fee of $30plus $25per hour. Let y be the cost in dollars of using the moving firm for x hours. Find the slope-intercept form of the equation.

3. Construct an f(x) such that lim f(x) = but lim (x-3)f(x) = 0 x3x3

Solve by the elimination method. 3x - y + -4 X + 6y + 43 Is it (1, 7)?

ch 10 3. Find the amount of interest on the following loan. Round your answer to the nearest cent. Principal Rate (%) Time Interest $14,800 11.02 3/4years $

Bob drove from home to work at 30 mph. After work the traffic washeavier, and he drove home at 25 mph. His driving time to and from work was 1 hour and 6minutes. How far does he live from hisjob?

(SHOW ALL WORK FOR FULL CREDIT) The operations manager of a musical instrument distributor feels that demand for bass drums may be related to the number of television appearances by the popular rock group Van Halen during the preceding month. The manager has collected the data shown in the following table: \f
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Graph the system below and write it's solution. 3x + y = -3 y=-1/2x + 2

Write the following Arabic number as a lowercase Roman numeral. 18= ________

How to calculate the eigenvalues of matix..........................................................................................................................................

Find the equation of the regression line for the given data. Then construct a scatter plot of the data and draw the regression line. (The pair of variables has a significant correlation.) Then use the regression equation to predict the value of y for each of the given x-values, if meaningful. The table shows the shoe size and heights (in) for 6

doublePendulum v0.6 written by Alexander Erlich (mailto:alexander.erlich@gmail.com) Last update submitted to MATLAB File Exchange on October 5th, 2010. Lagrangian and di\u001berential equations The program double_pendulum.m animates the double pendulum's (mostly) chaotic behavior. The Lagrangian of the- double pendulum as depicted MACM 316

A kind of music "shorthand" using numbers above or below the bass notes that indicated the kind of chord to be played

Suppose the line y = 8x2 is tangent to the curve y = f(x)when x = 3. If Newton's method is used to locate a root of the equation f(x) = 0 and the initial approximation is x 1 = 3, find the second approximation x 2 .

Suppose a survey of 903 college students showed that 67% said that they worked at least part-time during each semester.Find the 95%confidence intervalfor the true population proportion. A. 60.3% to 73.7% B. 63.7% to 70.3% C. 65.9% to 68.1% D. 65.3% to 68.7%

Which of the following is the correct definition of an angle? Please choose the best answer. Thanks! \f
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12. The graph efy =f(x] is shewn at the left and the graph of}: = g{x} is shewn as the right. {He fermulas are given.) Whai is the relatienship between g{x] andx]? 12. s=f(x} s=s{x} FL sir1=f{r+l]2 3- six] =I(x-11-2 C. g{x)=f{x+I)1 D. gfx1=x+21+2 Sl-IDRT ANSWER: 13. Multiply and simplify: {9 + 4i}[3 1'}. Write the answer in the farm a + bi, where

find the solution to the system by the addition (elimination) method. check answers 2s + 5t = 11 7s -15t= 32

" Recap " ( Note: Please respond to both of the following two [2] bulleted items) Describe what you achieved during this course. Then, share your greatest or most rewarding achievement during this course. Discuss the ways in which you anticipate using the materials covered in this course in the future.

The accidents below explore design/manufacturing flaws, often involving errors or faulty assumptions during the design or manufacturing process. While you are only required to research one of the accidents, feel free to explore each of the accident descriptions to help you decide if there is a particular accident you wish to study over the other

A food company originally sells cereal in boxes with dimensions 25 cm by 14 cm by 10 cm. To make more profit, the company decreases each dimension of the box by x centimeters but keeps the price the same. If the new volume is 2,208 cm 3by how much was each dimension decreased?

Both the National Council of Teachers of Mathematics (NCTM. and Common Core State Standards include the expectation that preschoolers and kindergartners: A.will not understand that time is a measurable attribute. B.will understand that time is a measurable attribute. C.will understand that time is not an important measureable attribute. D.will

1 1. Solve the system of equations by substitution. x = 2, y = 8; (2, 8) x = 3, y = 9; (3, 9) x = 2, y = 9; (2, 9) x = 3, y = 8; (3, 8) 2 points QUESTION 2 1. Solve the problem. A group of 12 friends goes bowling. How many different possibilities are there for the order in which they play if the youngest person is to bowl first? 11 12 479,001, 600

The approximate areas of two of theworld's largest island countries are given below. Determine which country has the greater area and by how many square kilometers. CountryA: 408,200 km squared; CountryB: 154,100 mi squared

Find a polynomial function f ( n ) such that f (1), f (2), ... , f (8) is the following sequence. 2 , 11 , 20 , 29 , 38 , 47 , 56 , 65

Consider the following pseudocode funtions. function Crunch(x E R) if x >= 100 then return x/100 else return x + Crunch(10 # x) (a) Compute Crunch(6). Can you explain what Crunch does here? Thanks.

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Find the volume of the sphere. Use pi equals=3.14 when needed. Round to the nearest thousandth if necessary. A sphere with radius 2 in.

Use the formula for n C r t o evaluate the given expression. 28 C 4

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The length of a rectangle is 3ft more than double the width, and the area of the rectangle is 77ft 2 . Find the demensions of the rectangle. Solve for length and width.

Ayuda por favor Un jugador de voleibol sirve una pelota con una velocidad inicial Vo de mdulo 13,40m/s formando un Angulo de 20 grados con la horizontal. Determinar (a) si esa pelota salvara el borde superior de la red, (b) a que distancia de la red aterrizara C) la magnitud de la velocidad inicial al contacto con el suelo y el Angulo con respecto

Assume the population proportion is to be estimated from the sample described. Find the approximate margin of error and the 95% confidence interval for the population proportion. Sample size equals= 361 sample proportion equals= 0.28 Find the 95% confidence interval. nothing less than

Q39. A polynomial f(x) of degree 3 whose coefficients are real numbers has the zeros -4 and 4 - 5i. Find the remaining zeros of f. a. 4, -4 + 5i b. 4, 4 + 5i c. 4 + 5i d. -4 + 5i

Use Math Editor to enter formulas and mathematical expressions. Problem Engineers have proposed a single-span suspension bridge across 8-km wide strait. The plan includes suspension towers 350 meters high at each end. Use the Trapezoidal approximation ( n = 4 ) to estimate the total length of the cable (in meters) that is given by Round

The revenue function R(x) and the cost function C(x) for a particular product are given. These functions are valid only for the specified range of values. Find the number of units that must be produced to break even. R(x)=200xx 2 ; C(x) =30x +6325; 0 x 100 How many units must be produced to break even?

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The Explorer Travel bus company has determined that when x tourists are given a particular bus tour, the profit P, in dollars, is given by P(x) = -0.25 x^2 + 21.50x - 90 (a) What is the company's profit if 28 tourists are given the tour? b) How many tourists should be given the tour in order to maximize the company's profit? Show work.

A family has two cars. The first car has a fuel efficiency of 15miles per gallon of gas and the second has a fuel efficiency of 25miles per gallon of gas. During one particular week, the two cars went a combined total of 1475miles, for a total gas consumption of 75gallons. How many gallons were consumed by each of the two cars that week?

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You are renting a house with four other students. The utility bills are due every two months. The four other residents moved in on Jan. 1st and you moved in on Feb. 1st. In March you received a utility bill for January and February. a. What fraction of the bill should you pay? What fraction the other four residents have to pay? What assumption did

4.On a recent math test, the mean score was 75 and the standard deviation was 5. Mike scored an 85. a)What percent of the students scored below Mike? b)What percent of the students scored above Mike?

What is the logarithm rewritten as a ratio of natural logarithms? log=3/2 (the = sign is small on my paper though) it gives me A: lnx-ln(3/2) B: lnx/ln(3/2) C: ln(3/2/x) D: ln(3/2)/lnx please help idk what this is at all!

Greg drove at a constant speed in a rainstorm for 288 miles. He took abreak, and the rain stopped He then drove 123 miles at a speed that was 5 miles per hour faster than his previous speed. If he drove for 11 hours, find thecar's speed for each part of the trip.

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Need help....pl solve only problem no-1 problem no-1 PROPOSITION 8.2 Suppose F has continuous first-order partial derivatives, and N (F. x, I) is the image under an interval Newton method of the bor x. Then any solutions x* Ex of F(x) = 0 must also he in N( F, x, x).Identify whether the following data set is unimodal, bimodal, multimodal, or has
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solve that please !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! \f
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A stock sells for $50 today. The riskless rate over the period is 10%. Consider holding the stock for 2 years, each year it either goes up by 30% or goes down by 20%. The company will pay a $15 dividend immediately before the stock price goes above $70. You hold an American call option with strike price $55, which expires in 2 years. You can

assume that the heights of american men are normally distributed with a mean of 69.0 inches and a standard deviation of 2.8 inches. the u.s. marines corps requires that men have heights between 64 and 78 inches. find the percent of men meeting these requirements.

A band is planning to market a CD. The fixed costs are $900 and the variable costs are $4 per CD. The wholesale price of the CD will be $10. For the artist to make a profit, revenues must be greater than costs. How many CDs, x , must be sold for the band to make a profit?

Using 17 flavors of ice cream, how many cones with 3 different flavors can you create if it is important to you which flavor goes on the top, middle, and bottom?

1. Graph the solution set for each linear inequality; assume all Real numbers for each (6 marks}. a) yixl h) }'E 3x+? C] 2x+3y:>6
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Calculate the amount of money you'll have at the end of the indicated time period. You invest $3000 in an account that pays simple interest of 3% for 20 years. The amount of money you'll have at the end of 20 years is $
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A company that manufactures mountain bikes makes a daily profit p according to the equation p= 100x(squared) + 4500x 49,601, where p is measured in dollars and x is the number of mountain bikes made per day. Find the number of mountain bikes that must be made each day to produce a zero profit for the company.

to raise money for a ski trip students sell pizzas at lunch time. 2 types of pizza are sold pepperoni and all dressed. they sell at least twice as many pepperoni pizzas all dressed with a max of 400 pepperoni pizzas. they sell at least 250 piza and upto a max of 500 pizzas. The profit on a pepperoni pizza is at $2 and on a all dressed is 4$. how

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6 LrP_Q4-2. Mathematics 9 - Word Table Tools Home Insert Design Layout References Mailings Review View Design Layout ? Tell me what you want to do... A. Solve the following oblique triangles DEF 1. d = 13.4 cm, e = 14. 53 cm, f = 15.09 cm Solutions: 2. D = 102.480, E = 45.550, f = 102.220 Solutions
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4:59 PM (CDT) Unit 2 - Individual Project Assignment Overview Go To: Type: Individual Project Unit: Graphs and Trees Due Date: Tue, 5/16/17 Grading Type: Numeric Points Possible: 120 Points Earned: 0 Deliverable Length: 1-2 pages Assignment Details Learning Materials Reading Assignment My Work: Online Deliverables: Submissions Assignment Details

Suppose we wanted to test whether the number of hours in labor was different for women in their 20s and women in their 30s. Here is the basic information needed to compute t: X1 = 12.5 SD2/1 = 4.41 n1 = 20 X2 = 13.2 SD2/2 = 15.21 n2 = 50

rthW 3 : Graphing Functions \""lll Wu "'llllll'l ' llnfllllllgm l l Hucauuu I U! [U Hulttpla Choice: Please select the best answer and click "submit." Which at the following functions is graphed below

Compute the following probability. Round your answer to four decimal places. Area under normal curve between x =29.5and x =57.0 is given by P (29.5 < x <57.0) = P (0.42 < z < 5) = Recall that P (0.42 < z < 5) = P ( z < 5) - P( z <0.42).

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