Math - Others Questions

For the following description of data identify the Ws specify for each variable whether its use indicates that it should be treated as categorical or quantitative and for any quantitative variable identify the units in which it was measured or note that they were not provided Researchers investigating the impact of training on chess performance collected data from 809 training sessions during 2002 2004 They kept track of the player s age the number of weeks the training lasted the type of training practice theory combined the frequency of training the player had monthly weekly daily the number of wins and sex of the players and whether the players exhibited imnmnuament nona minor mainl Identify the who for the description of data OA The improvement in the chess performance of the 809 players OB The 809 training sessions OC The chess performance of the 809 players OD The 809 players Identify the what for the description of data Select all that apply A Duration of the study C Player s improvement E Frequency of training G Number of training sessions 1 Number of wins of the players Identify the when for the description of data A Between the years 2002 and 2004 CLIED B Average improvement OD Player s age F Type of training H Sex of the players J Duration of the training

How many points do football teams score in the Super Bowl The total numbers of points scored by both teams in 50 of the first 54 Super Bowl games are as shown Complete parts a through c 45 47 23 29 21 31 22 38 46 37 66 50 37 47 44 47 54 56 59 52 36 65 39 61 69 43 75 44 56 55 53 39 41 37 69 61 45 31 46 31 50 48 56 65 51 52 62 74 16 51 The lower quartile is 37 point s Type an integer or a decimal Do not round The upper quartile is 56 point s Type an integer or a decimal Do not round c Make a histogram and write a brief description of the distribution Make a histogram Choose the correct graph below Click here to view histogram a Click here to view histogram b Click here to view histogram c Click here to view histogram d Write a brief description of the distribution The distribution is unimodal and roughly symmetric and has no outliers It is centered at 46 The minimum is 16 and the maximum is 75 Type integers or decimals Do not round

A 30 seat turboprop airliner whose mass is 12 500 kg takes off from an airport and eventually achieves its cruising speed of 610 km h at an altitude of 10 000 m For g 9 78 m s which of the following is true about the changes in the airliners kinetic energy and potential energy A AKE APE B AKE APE C AKE APE D Not enough information to determine

A class of fourth graders takes a diagnostic reading test and the scores are reported by reading grade level The 5 number summaries for the 13 boys and 14 girls are shown below Complete parts a through t below Boys 2 9 3 8 4 6 5 4 5 9 Girls 2 9 3 8 4 4 5 2 5 8 a Which group had the highest score Boys Girls b Which group had the greatest range Select the correct choice below and fill in the answer box to complete your choice Simplify your answer A Boys had the greatest range of 5 9 OB Girls had the greatest range of OC The two groups have the same range of c Which group had the greatest interquartile range Select the correct choice below and fill in the answer box to complete your choice Simplify your answer OA Boys had the greatest interquartile range of OB Girls had the greatest interquartile range of OC The two nuns have the same IOR of

a The number of speeding tickets each student in the senior class of a college has ever had The distribution would probably be unimodal and skewed because most data values will be either 0 or 1 with a few values much larger than that b Players scores number of strokes at the U S Open golf tournament in a given year The distribution would probably be because and more golfers will score above the mean than below the mean every golfer will score above the mean most scores will either be very high or very low with few golfers in the middle every golfer will have a different score

Fill in the blank using the appropriate word if a rod has to carry an applied axial load of 100 kN its allowable normal stress is 200 MPa then the cross sectional area required is 5 x 104 m Correct answer 1 minimum

2A 3B C Submit Request Answer Part F A O AE f t O

Suppose that a particular artillery piece has a range R 6560 yards Find its range in miles Use the facts that 1 mile 5280 ft and 3 ft 1 yard Express your answer in miles to three significant figures View Available Hint s R AEO ES miles

What is the speed of a car going v 1 000 mph in Sl units Notice that you will need to change from miles to meters and from hours to seconds You can do each conversion separately Use the facts that 1 mile 1609 m and 1 hour 3600 s Express your answer in meters per second to four significant figures View Available Hint s AEO

4 Geologists have determined that the Earth is about 4 57 billion years old 4 570 000 000 years endierovst a If you wanted to represent this length of time with a roll of receipt paper so that one inch of the paper represents one million years how long would the paper have to be in inches b Convert the paper s length inches to miles c What is the paper s length in kilometers AMST 5 Today the Atlantic Ocean is about 5 700 km wide at the latitude of Boston At one time there was no Atlantic Ocean because the North American continent and the African continent were joined Then 185 000 000 years ago the two continents moved apart by a process called seafloor spreading a Assuming the rate of seafloor spreading has been constant what rate has North America been moving away from Africa in kilometers per year b What is this rate in centimeters per year

K Find the measure of each marked angle Part 1 of 3 The degree measure of the top angle of the triangle with angle measure 9x 363 in EXCED Points 0 of 1 9x 363 A x 28

2 The following graph shows plots of the growth functions both polynomials for two algorithms A and B f n 10 16 12 10 14 6 A 8 10 B 12 14 16 18 20 22 24 hich algorithm would you recommend to use Answer A or B and then justify 26 N

Consider the following number Write each part of the 2 x 104 4 x 10 7 x 10 1 6 x 10 3 3 x 10 4 8 x 10 5 2 x 104 4 102 7 x 10 1 6 x 10 3 3 10 4 8 x 10 5 umber in decimal notation Write the number in decimal notation 2 x 104 4 10 7 x 10 6x 10 3 3 10 4 8 10 5

Write the numbers in decimal notation a 10 5 b 10 3 I

Kathy had a dream in which she was selling roses in an international market She started out with 148 roses Then her first customer an Egyptian bought III of them Soon afterward a Babylonian asked to buy roses late XIV roses were bought by you guessed it a Roman How many roses did she have left to sell at the end of her dream a roses

Absolute value function Cube function Square function Reciprocal function Identity function Square root function Cube root function Constant function Drag the function to the appropriate area below

K In the diagram there are two similar triangles Find the unknown measurement The length of the hypotenuse of the large triangle c is Type an integer or decimal rounded to the nearest tenth as needed 20 96 60

Write the ratio with the smaller measurement unit Rewrite the ratio so that the units in the numerator and the denominator are the same Use values in terms of the smaller measurement unit Then write the ratio in fraction notation expressing the fraction in simplest form 24 inches to 13 feet 12 inches 1 foot 24 inches to 13 feet to U of 1 Save

Fill in the blanks below When multiplying a decimal number by powers of 10 such as 10 100 1000 and so on move the decimal point in the number to the of 10 When multiplying a decimal number by powers of 10 such as 10 100 1000 and so on move the decimal point in the number to the power of 10 the same number of places as there are the same number of places as there are in the power in the digits

e This shows what is 1 2 points 6 On April 1 Jiro Nozomi created a new travel agency Adventure Travel The following transactions occurred during the company s first month incorrect for the work you April 2 Nozomi invested 34 000 cash and computer equipment worth 35 000 in the company in exchange for its common stock April 3 The company rented furnished office space by paying 1 800 cash for the first month s April rent April 4 The company purchased 1 500 of office supplies for cash April 10 The company paid 1 980 cash for a 12 month insurance policy Coverage begins on April 11 April 14 The company paid 1 200 cash for two weeks salaries earned by employees April 24 The company collected 13 500 cash for commissions revenue April 28 The company paid 1 200 cash for two weeks salaries earned by employees April 29 The company paid 350 cash for minor repairs to computer equipment April 30 The company paid 1 300 cash for this month s telephone bill April 30 The company paid 1 520 cash in dividends The company s chart of accounts follows 101 Cash 106 Accounts Receivable 124 Office Supplies 128 Prepaid Insurance 167 Computer Equipment 168 Accumulated Depreciation Computer Equipment 209 Salaries Payable 307 Common Stock 318 Retained Earnings 319 Dividends 403 Commissions Revenue 612 Depreciation Expense Computer Equipment 622 Salaries Expense 637 Insurance Expense 640 Rent Expense 650 Office Supplies Expense 684 Repairs Expense 688 901 Telephone Expense Income Summary Return to qu

Required information riepare all ajuste a a Cash Accounts receivable Teaching supplies Prepaid insurance Prepaid rent WELLS TECHNICAL INSTITUTE Adjusted Trial Balance December 31 Professional library Accumulated depreciation Professional library Equipment Accumulated depreciation Equipment Accounts payable Salaries payable Uneamed revenue Debit 26 491 Credit

Req 1 and 2 Req 3 Req 4 Req 5A Retained earnings April 1 ADVENTURE TRAVEL Statement of Retained Earnings For Month Ended April 30 Prepare the statement of retained earnings for the month of April 30 0 Req 5B 0 Req 5C Req 5D

Revenues Req 4 Expenses Req 5A Prepare the income statement for the month of April 30 Req 5B ADVENTURE TRAVEL Income Statement For Month Ended April 30 Req 5C Req 50 Reg 64 Reg 68 GL

6 2 ints Using account balances from Requirement 6B prepare an unadjusted trial balance as of April 30 ADVENTURE TRAVEL Unadjusted Trial Balance April 30 Account Title 101 Cash 106 Accounts receivable 124 Office supplies 128 Prepaid insurance 167 Computer equipment Debit Credit

Macmillan Learning Which of the measurements contain three significant figures 1 00 10 0 00100 0 001 500 395 5 0 10

1 The diagonal of a rectangle is shown a Decompose the rectangle along the diagonal and recompose the two pieces to make a different shape

Write the numbers in scientific notation 673 5 673 5 0 034 0 034 6 735 x 102 Incorrect 3 4 x 10 2 Incorrect x 10 x 10 a b 10 Incorrect Incorrect

In 150 200 words describe your public health perspective of the university response to the Covid 19 Pandemic In other words assess the response based on your understanding so far of public health

3 k I nces ULUNG CHU VIL LIGNS ATTINUT V VI AL ne Lu CUTIITTOVOTIO THUS C Curricuy g WTI s two employees are paid weekly As of the end of the year two days salaries have accrued at the rate of 100 per day for each employee h The balance in the Prepaid Rent account represents rent for December Cash Accounts receivable Teaching supplies Prepaid insurance Prepaid rent Professional library Accumulated depreciation Professional library Equipment Accumulated depreciation Equipment Accounts payable Salaries payable Unearned revenue Common stock Retained earnings Dividends Tuition revenue Training revenue WELLS TECHNICAL INSTITUTE Unadjusted Trial Balance December 31 Depreciation expense Professional library Depreciation expense Equipment Salaries expense Dala Insurance expense Rent expense Teaching supplies expense Advertising expense Utilities expense Totals Debit 26 491 0 10 187 15 284 2 039 30 565 100 000 40 755 0 0 48 907 0 22 429 0 7 132 5 706 309 495 Credit 9 171 16 303 24 000 0 14 500 18 880 84 000 103 924 38 717 309 495

Skill 4 B a Describe data from a table or graph including identifying specific data points 200 180 160 140 120 100 80 60 40 20 0 Evidence Rhynchonellides Atrypides Pentamerides Triplesioids Strophomenoids Plectambonitoids Dalmanellidines 489Ma Orthidines Protorthides Clitambonitides Billingselloids 1a 1b 1c 1d 2a 2b 20 3a 3b 4a 4b 4c 5a 5b 5c Tremadoo Arenig Lanvirn Caradoc Mohawkian Ibexian TREMADOCIAN LOWER ORDOVICIAN FLOIAN Whiterockian DPN DARRIWILIAN M ORDOVICIAN 472 5d 6a 6b 6c Ashaill Cincinnatian MAKATIAN SANDBIAN UPPER ORDOVICIAN 460 5 C Guiding Question What happened to the trilobites Why are they extinct Claim Reasoning 443

Answer the following Show all pertinent solutions Let A 1 3 5 B 3 5 6 and C 1 3 7 a Verify that An BuC An B u An C b Find Ax B CA B

3 Brent is buying a new laptop for school and can select none some or all of the following choices a peripherals a laser mouse a DVD burner a Web cam or jump drive How many different selections c peripherals are possible for his laptop

A fan moves 0 6 kg s of air with a velocity of 15 m s If the shaft of the fan receives 90 W determine the mechanical efficiency of the fan

Problem 1 Water is being heated in a closed pan on top of a range while being stirred by a paddle wheel During the process 30 kJ of heat is transferred to the water and 5 kJ of heat is lost to the surrounding air The paddle wheel work amounts to 500 N m Determine the final energy of the system if its initial energy is 12 5 kJ 500 N m 00

A frame ABCD is supported by a roller at point D and by a pin at point A The structure is subjected to point loads shown in Figure 1 1 Calculate the internal loadings normal and shear forces bending moment at the cross sections through points G and H using the method of sections yk D 50 KN C 1 0 m G 1 5m H 1 0 m 3 0 m 40 KN 70 KN B 1 5 m Figure 1 1 Frame A 1 0 m 2 0 m For cuts on vertical structural members please use the following senses as the positive sign convention for internal reactions Z M M VN AN V

For the following exercise evaluate the expression writing the result as a simplified complex number 3 i i 1 3i 3 2i 1 12 Question Help VIDEO Post to forum

Simplify a b 2x 1 5 x 2x 1 5 x x 4 5 2x x 4 5 x

Water is transported from ground level reservoir to an elevation of 15 m using a pump of mechanical efficiency equal to 80 that receives shaft power equal to 8 hp Please answer the ollowing b a Create a schematic representation of the pumping system Hint you may want to look at Figs P2 71 and P2 75 from the textbook to create the schematic representation Under ideal conditions no friction losses inside the pipes and constant temperature determine the maximum volume flow rate of water in L s Hint The shaft of the pump transfers energy to the rotor of the pump and the rotor of the pump transfers energy to the water review rate of mechanical energy Textbook Section 2 2 and pump efficiency Textbook Section 2 7

A spherical ball with a diameter of 10 cm has an outer surface that is maintained at a temperature of 200 C It is suspended in the middle of a room that has an average temperature of 20 C If the surface emissivity is 0 8 determine the rate of radiative heat transfer from the ball to the room in W Choose the nearest value A 2 3 W B 4 5 W C 19 4 W D 60 8 W

Mechanical engineers often study the movement of damped oscillating objects Studies of this type play an important role in the design of automobile suspensions among other things The horizontal displacement of an object is given as a function of time by the equatior x xoe Bt cos wt B w sin wt The parameters and w depend upon the mass of the object and the dynamic characterisucs of the system a Prepare a table of x versus t over the interval 0 t 30 At 0 5 sec Let xo 8 in 0 10 sec and w 0 50 sec The mua last three values are constant therefore Absolute addresses are needed All variables must be clearly labeled Make sure to add borders to the table and use 2 decimal places 23 b Highlight the first points where x first crosses the t axis Tumainos

Sandy wanted to save money to buy outfit Sandy saved 25 20 in May 22 40 in June and 22 80 in July However she also had to spend 16 90 on school supplies at 41 90 on her dog If the outfit costs 134 60 how much more money does Sandy still need to save

Assume the following pattern with terms built of square tile figures continues and complete parts a through c belov 8 a How many square tiles are there in the eighth figure b How many square tiles are in the nth figure O A The figures do not appear to follow any predictable pattern OB There are 3n square tiles in the nth figure OC There are 3n 1 square tiles in the nth figure There are 3n 1 square tiles in the nth figure AD

In each of the following list three terms that continue the arithmetic or geometric sequences Identify the sequences arithmetic or geometric a 1 5 9 13 17 b 3 9 27 81 243 c 17 26 35 44 53 a The next three terms of 1 5 9 13 17 are Is the sequence arithmetic or geometric OA Arithmetic OB Geometric b The next three terms of 3 9 27 81 243 are Is the sonuence arithmetic or geometric MCC and and Use ascending order Use ascending order

a If seven people shake hands with one another exactly once how many handshakes take place b Generalize the solution for n people a For seven people there will be Simplify your answer handshakes b For n people there will be handshakes Simplify your answer

Use a traditional clock face to determine the next three terms in the following sequence 4 11 6 1 8 The next three terms in order are and

Use the approach in Gauss s problem to find the sums of the arithmetic sequences below do not use formulas a 1 2 3 4 29 b 1 3 5 7 2409 c 6 12 18 600 d 1000 990 980 10 a The sum of the sequence is b The sum of the sequence is c The sum of the sequence is www

As you leave Clark the sign says Lutherville 145 miles Otisburg 235 miles If the Planet Diner is halfway betwe Lutherville and Otisburg how far is it from Clark The diner is miles from Clark

One winter night the temperature fell 13 degrees between midnight and 5 A M By 9 A M the temperature had doub from what it was at 5 A M By noon it had risen another 11 degrees to 43 degrees What was the temperature at midnight The temperature at midnight was degrees

Cookies are sold singly or in packages of 2 or 6 With his packaging how many ways can you buy 12 cookies There are different ways to buy 12 cookies 15 2

Joe s annual income has been increasing each year by the same dollar amount The first year his income wa 22 900 and the 9th year his income was 34 100 In which year was his income 49 500 His income was 49 500 in the th year TEE