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april 2020
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Mathematics Questions and Answers April 04, 2020

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II. Set up an equation and then solve for the variable. 9. ACAT DOG. Find x. 10. AIEF AHGF. Find a. E (8x6) 11. ABD ACDB. Find x. A 4x35 (3x9) (5a) 2a3 B (2x17y 12. AABDACDB. Find y. 7 y 3y20 H

Given A 1, 2, 3, 4. Let S4 be the permutation group on A and H e, (1 2) (3 4), (13) (2 4), (14) (2 3) be the subgroup of S4. S4 H, (1 2) H, (13) H, (2 3) H, (123) H, (132) H Determine whether S4H is isomorphic to S3. 15 m

1. Write next to the image whether you would use Heartbeat (H) or Boomerang (B) 2. Setup the equation to solve for x (Do Not Solve) 1. 25 2. AA 7 9 B. X 48 64 4. 81

ing equal LIST repres the equation of the circle below y 5 5 0 5 X 5 Ox y12x 45 0 Ox y12x27 0 10

In supply (and demand) problems, y is the number of items the supplier will produce (or the public will buy) if the price of the item is a. For a particular product The supply equation is y 3x442 The demand equation is y 5x610 Solve this system of equations to determine the point at which the two lines intersect. Give your answer as an ordered

Nationalization of industry refers to a government taking over property andor facilities without payment to the owners socialism as an economic system protecting the rights of the working class exploitation of the indigenous worker by foreign corporation causing widespread pollution an economic system featuring private and government ownership of

Part 1 of 3 A survey found that people keep their televisions an average of 5.9 years. The standard deviation is 0.72 years. Find the percentage of people that owne their TV for the given amount of time. Assume the random variable is normally distributed. Refer to the table of values (Area Under the Standard Normal Distribution) as needed. Part 03

The first figure takes 5 matchstick squares to build, the second takes 13 to build, and the third takes 21 to build, as ca be seen by clicking on the icon below. (a) How many matchstick squares will it take to build the 11th figure (b) How many matchstick squares will it take to build the nth figure (c) How many matchsticks will it take to build

888 4 4 4 4 4 4 What is the rank of the matrix with the given vectors as its rows rank Do the given vectors form a basis for R Yes, they form a basis for R3. No, they do not form a basis for R.

Convert the given unit of weight to the unit indicated. 5 dg to mg

Question 8 Let a 7i 5j and b 4i 3j. Find a b .

Solve each of the following equations. Write your answers accurate to two decima places. Homework Help a. 2.4 70 b. 6 18 c. 2 5

Under his cell phone plan, Logan pays a flat cost of 38 per month and 5 per gigabyte. He wants to keep his bill at 56 per month. Which equation or tape diagram could be used to represent the context if g represents the number of gigabytes of data Logan can use while staying within his budget A B C D 10 51 38 38 38 5g 5638 38g 38g 38 38 38 5 56

sre. The end of a 30inch pendulum describes an arc of 5 inches. Through what angle, in radians, does the pendulum swing What is the correct second step 3050 A. B. 5. e 30 e I C. 30 5306 D.

L M K The following angle can be described as Select

Question 2 (6 points) Consider the series 3k k1 Please state your reasoning along with all tests that you are using to answer the following questions. (a) Does the series converge

Correct Submit Answer Next Problem Problem ID PRABM6BU 3b.37311 b Type your answer below as a number (example 5, 3.1, 4 12, or 32) 4 Correct Submit Answer Next Problem Problem ID PRABM6BU

3) 2xy4 HT Name Extra Practice X and Y intercepts Find the x and y intercepts and graph the line. Your x and y intercepts MUST be written as a point. 1) 4x5y20 2) 2xy2 T 4) x2y8 2 Y

Let A 4 2.254 Find an invertible matrix C and a diagonal matrix D such that A CDC. C 188

Determine whether the given matrix is in row echelon form. 0 1 7 0 0 0 0 1 O The matrix is in row echelon form. The matrix is not in row echelon form. If it is, state whether it is also in reduced row echelon form. The matrix is in reduced row echelon form. O The matrix is in row echelon form but is not in reduced row echelon form The matrix is

Interest is compounded semianually. Find the amount in the account after the given time Principal Rate of Interest Time 1000 3 3 years The amount in the account is (Round to the nearest cent.)

In Exercises 79, use the diagram ST12 U Q R to find the given length. 7. CU 7x10 8. UR 9. the radius of C C 3x6 S V T

Find an LU factorization of the given matrix. 331 95 4 34 214 1 0 0 3 1 0 L 0 14 1 3 3 1 0 4 7

Consider the function y 3(x2)27 as you complete parts (a) through (c). Homework Help a. How could you restrict the domain to show half of the graph b. What is the equation for the inverse function for your half graph c. What are the domain and range for the inverse function

Question ID 117895 progress bar may be uneven because questions can be worth more or less (including zero) depending on your answer. A 16pound bag of Kitty Kibbles is 24.00. An 8pound bag of Feline Flavor is 11.20. Which statement about the unit prices s true Feline Flavor has a higher unit price of 1.50pound. Kitty Kibbles has a higher unit price

What is a consequence of stereotyping in the media OA. It portrays minority groups in unrealistic ways or even excludes them. B. It paints certain products as musthaves for all consumers. C. It allows the media to reach out to an entire target audience at once. D. It forces people to question the accuracy of media coverage.

Question 4 Read this paragraph from Why I Use Trigger Warnings by Kate Criticisms of trigger warnings are often based on the idea that co development. In order for this to happen, students must be chall with ideas, arguments and views they find difficult, upsetting or and it is in fact the main reason that I do issue warnings. Read this Sentence 2

Current Attempt In Progress Sunland Company has a materials price standard of 2.00 per pound. 6300 pounds of materials were purchased at 2.20 a pound. The actual quantity of materials used was 6300 pounds, although the standard quantity allowed for the output was 6000 pounds. Sunland Companys materials price varlance Is 1200 U. O 1260 F. O 1260 U.

What score would you predict a student who studies for 10 hours to get on their math SAT Twenty students who took the SAT were asked how many hours they studied and what they scored on the math portion. The leastsquared regression line of this data was calculated to be 350 25x, where x is the number of hours studied and y is the math SAT score.

1. At the beginning of the week, Miguels odometer reads 86,845. At the end of the week, his odometer reads 87,033. How many miles did Miguel travel that week

DETAILS gle in degrees to radians. Express your answ radians

B. Show that a (t) is a linear combination of a and ay. Draw a diagram that represents T (t), (t)(t), , and a... Yes, you can look this up in my notes.

Find the critical numbers of the function f(x) 2x33x 60x 6. The critical numbers are

A medical prescription company was testing a new medication to prevent seizures. They collected data on a persons weight and the amount of medication in hisher bloodstream. What type of data was collecte Bivariate and Quantitative Bivariate and Categorical

Solve the given system of equations using either Gaussian or GaussJordan elimination. (If there is no solution, enter NO SOLUTION.) X1 2x2 3x3 13 3X1 X2 x3 0 4x x 2

(b) A polynomial f(x) over an field is irreducible if and only f(x 1) is irreducible. Prove or disprove. 4

A fifteen (15) year 8000 CD through Bank X pays 4.96 interest compounded weekly. A fifteen (15) year CD that pays 5 interest compounded annually is available at Bank Y. Explain which bank maximizes your investment.

The Concentration C (in mgcc) of a particular drug in a persons blood Stream is related to the time t in hours) after injection in such at way that as t change from 0 to 12, C changes from 3 to 0.1. find the average rate of change of C with respect to C. The average rate of Change of c with respect is

14 Juan has 5 ties, 6 shirts, and 4 pairs of pants. How many different outfits can he wear if he chooses one tie, one shirt, and one pair of pants for each outfit There are different outfits Juan can wear if he chooses one tie, one shirt, and one pair of pants for each outfit. (Type a whole number.)

In a perfectly competitive market, if a seller raises the price of a good or service above equilibrium, what is the buyer likely to do Buy less of the good or service Buy the good or service from another seller Buy less goods and services from other sellers to make up for the difference Discontinue buying that good or service

Multiply the monomial and the polynomial. Assume any variable exponents represent whole numbers. 2x5(9x612x8) OA. 18x11 24x7 16x5 OB. 18x1112x8 O c. 18x11 24x7 OD. 18x6 24x 16

A poll of 3116 people revealed that of the respondents that were registered Republicans, 826 approved of their representative job performance, 409 did not, and 734 had no opinion. Of the registered Democrats, 240 approved of their representatives jo performance, 434 did not, and 75 had no opinion. Of those registered as Independents, 118 approved,

3. Write the following in (a b) form. 27x2 27x 81 16x4 24x3 2 8 256

4. Complete the missing entries in the following pay stub. EARNINGS PERIOD AMOUNT WEEKLY 18 YTD AMOUNT 21.510 DEDUCTIONS TAX TYPE AMOUNT YTD AMOUNT Social Security b. C. Medicare d. Q Federal Tax 322.65 5,807.70 State Tax 191.20 3,441.60 ADJUSTMENTS ITEM AMOUNT YTD AMOUNT Union Dues f. 216.00 23.95 Family Health Ins a. As indicated in the paycheck

From the procedure Solve the multiplication and division problems below, reporting the answer with the correct number of significant figures. (2pts) 0.1184 cm x 8.00 cm x 0.0345 cm (2pts) (42.4 mL)(15.6 g) 1.265 mL (2pts) (35.56 g)(1.45 mL) (4.8 mL)(0.56 min)

tudentPlayerHomework.aspxhomeworkId64382 ews Translate mework Ques The letters x and y represent rectangular coordinate x 10y

N 44 Using U.S. Census Bureau projections from 2020 to 2060, the number of U.S. females under the age of 18, in millions, can be modeled by the function N 0.150x 37.4 where x is the number of years after 2020. N (a) Use a graphing calculator to graph this equation for the range xmin 0, xmax 40 Nmin 35, Nmax 45. N 44 42 40 38 36 30 A 44 42 12

re the given initial value problem. y2y36y 72y0 y(0) 14, y(0) 28, y(0) 376 te the auxiliary equation for the differential equation. (Type an equation using r as the variable.)

14 If B 72, c 15 cm, and b 14.27 cm, what is the measure of C, to the nearest tenth of a degree A b B C a a. 12.3 b. 88.6 C. 90.0 d. 99.9

Consider the following set of vectors. 888 Let v, V2, and v3 be (column) vectors in R3 and let A be the 3 x 3 matrix homogeneous linear system with augmented matrix A10 has a nontrivial solution. Consider the following equation. V1 V2 V2 V3 with with these vectors as its columns. Then V1, V2 , and v3 are linearly dependent if and only if the

What is one reason why government spending alone may not reflect the true size of government The government does not adjust its spending figures for inflation. The government nets its total spending with total tax revenue. Some privatesector spending is mandated by law. The term government spending does not include federal employees salaries

Ultrasound is used in medicine both for diagnostic imaging (Fig. P17.9, page 526) and for therapy. For diagnosis, short pulses of ultrasound are passed through the patients body. An echo reflected from a structure of interest is recorded, and the distance to the structure can be determined from the time delay for the echos return. To reveal

A graph G has 9 vertices, all of degree 4. How many edges does G have Answer A graph G2 has 6 vertices, all of degree k. Also, G2 has 12 edges. What is k Answer A graph G3 has v vertices, all of degree 4. Also, G3 has 10 edges. What is v Answer

The following function is positive and negative on the given interval. f(x)sin 2x 5x 2x a. Sketch the function on the given interval b. Approximate the net area bounded by the graph of f and the xaxis on the interval using a left, right, and midpoint Riemann sum with n 4 5x C. Use the sketch in part (a) to show which intervals of 2x make positive

how to graph a line using the slope and yintercept. Provide an original example with this description. question 1 point(s) possible 10 Write To graph a line ymxb using the slope and yintercept, plot the point containing the yintercept on the This is the point Obtain a second point using the slope, as a fraction, and use starting at the point

13. (1 point) following statement Let D 1,0,1,2,3 and consider the Ed D d4d40 Is this statement true A. No, only some values of d satisfy the statement B. No, no values of d satisfy the statement C. Yes, d 2 satisfies the statement D. Yes, all values of d satisfy the statement Answer(s) submitted

A. B. C. D. E Find the exact value of arcsin (sin() 0 6 2 22 57

Carl and Ellie split a chocolate bar into 8 pieces of the same size. Carl took 7 of the pieces and Ellie took 1 of them they then divided a 2 chocolate bars of the same type into 16 pieces of equal size. Then they gave some of them to their sister and then equally split the remaining pieces between the 2 of them. After all this Carls quantity of

The fractional reserve characteristic of the banking system allows banks to create money and also create wealth from bank deposits. Describe why this statement is or is not true.

Find the standard matrix of the given linear transformation from R2 to R. Projection onto the line y 8x

6. 3 Points DETAILS SMITHNM13 13.1. For the spinner below, assume that the pointer can B A C

A mass weighing 16 pounds stretches a spring damping force that is numerically equal to 8 3 feet. The mass is initially released from rest from a point 3 feet below the equilibrium position, and the subsequent motion takes place in a medium that offers a the instantaneous velocity. Find the equation of motion x(t) if the mass is driven by an

A 1kilogram mass is attached to a spring whose constant is 24 Nm, and the entire system is then submerged in a liquid that imparts a damping force numerically equal to 11 times the instantaneous velocity. Determine the equations of motion if the following is true. (a) the mass is initially released from rest from a point 1 meter below the

1 4 7 Supposed we set M258 3 7 9 If you execute the following R command, what output do you expect to see is.matrix(MM5, drop F) TRUE FALSE ONA

Find the augmented matrix of the linear system. 2x1 3x2 x3 3 X1 x3 0 X1 2x2 3x3 0 2 1 3

Find a QR factorization of the matrix. (Enter sqrt(n) for n.) 0 3 5 105 1 3 0 0 0.816 0.577 0.707 0.40 0.577 Q 0.707 0.408 0.577 X 1.414 2.12 3.53 0 3.67 2.014 R

A mapping 7 R2 R2 is expressed by the transformation matrix below, A 239 a) State the condition for an orthogonal transformation. Is 7 an orthogonal transformation Give your reason. b) Find the image of the given vector below using the transformation matrix A. 4 marks u 51 1 mark

28 04 3 7 Let A B and C 22 87 3 3 (a) Find AB. (b) Find (AB)C. (c) Find (AB)C.

Question 59 Points 1 A telegraph took to transfer message from one place to another place. Otwo weeks two days O two hours two minutes

2. Use the function below to find the values. X G(x) A. G(2) 0 5 1 4 B. G(4) 2 3 3 2 4 1 C. All xvalues for which G(x)0 5 0

Find the dot product of each pair of the given vectors. V1 V2 V V3 6 9 2 1 6 3 2 12 0 V2 V3 Determine if the given vectors form an orthogonal set. O These vectors form an orthogonal set. O These vectors do not form an orthogonal set.

Solve the given initialvalue problem. x(t) X 1 x (32) (3) x (0) (2) X 4 2 2 6

A wooden artifact from an ancient tomb contains 45 percent of the carbon14 that is present in living trees. How long ago was the artifact made (The halflife of carbon14 is 5730 years.) Round your answer to the nearest year. The artifact was made years

Espaol Suppose we want to choose 7 letters, without replacement, from 9 distinct letters. (a) How many ways can this be done, if the order of the choices is taken into consideration (b) How many ways can this be done, if the order of the choices is not taken into consideration

Recall that a 5bit string is a bit strings of length 5, and a bit string of weight 3, say, is one with exactly three 1s. How many 5bit strings are there How many 5bit strings have weight 0 How many 5bit strings have weight 1 How many 5bit strings have weight 2 How many 5bit strings have weight 4 How many 5bit strings have weight 5 How many 5bit

The principal P 400 is borrowed at simple interest rate r 6.25 for a period of time t 3 months. Find the sin interest owed for the use of the money. Assume 360 days in a year and round to the nearest cent. A. 6.82 OB. 4.25 OC. 6.25 OD. 75.00

Problem 4 Graph the Quadratic Fur 5 5 43 2 1 O 2 3 3 4

What is the position of F on the number line below Write your answer as a fraction or mixed number. 0 F 2

Determine whether A is diagonalizable. Yes 404 A 440 No Find an invertible matrix P and a diagonal matrix D such that P1AP D. (Enter each matrix in the form row 1, row 2,..., where each row is a commaseparated list. If A is no SOLUTION.) (D, P)

George works at a warehouse installing electronic devices on gas meters. He receives a base pay of 200 and 35 cents for every electronic device installed. Last week, his pay was 437.65. How many electronic devices did he install Round to the nearest whole number if necessary. x a) 571 devices b) 679 devices c) 153 devices d) 1,250 devices

QUESTION 8 Lisa has decided to invest 3000 at the end of each six months for the next five years in a savings account that pays 8 per annum, compounded semiannually Del amount of the annuity. For the toolbar, press ALTF10 (PC) or ALTFNF10 (Mac). 10pt I XQ

Let F(s) 1.18 0.03s2 represent the stopping distance (in feet) of a car travelling at a miles per hour. Calculate F(65) at estimate the increase in stopping distance if speed is increased from 65 to 66. Compare your estimate with the actual increase. F(65) feet Estimated increase in stopping distance Actual increase in stopping distance feet feet

In Exercises 2734, if possible, find AB and state the order of the result. 2 1 27. A 3 B4 0 1 6 8 1 7 120 1 0 28. A 6 13 1 29. A 4 0 3802 3 2 B 817 4 2 2 B 3 8 1 7 146 231 1 4 30. A 140 3 45 1 31. A0 50 32. A0 352 002 040 0 2 B 3 0 B01 0 0 0 5 27 8 0 B0 0 7 1500 0 712

Write the fraction in lowest terms. 15 25 15 25 (Simplify your answer. Type fraction.) an inte

3 of 12 A calculator may be used for this item. The table shows the gross domestic product of the United States in billions of dollars at the start of each year since 1999. Part A Of the four oneyear intervals provided in the dropdown list, the oneyear interval where the average rate of change is the greatest is A. 20002001 B. 20052006 C. 20102011

vey has shown that 42 of the adults in Mystic Falls have vision insurance. Of these adults, 55 have iPhone, while 33 of the adults who do not have vision insurance have iPhones. Find the probabilities rounded to 3 significant digits that an adult in Mystic Falls can be categorized as follows adult who has an iPhone. adult who does not have an

3 1 2 0 2 3 6 2 3 6 Shift to the right 2 units, reflect about the xaxis, vertical stretch by a factor of 2, and shift up 5 units Shift to the right 2 units, reflect about the xaxis, vertical shrink by a factor of 2, and shift up 5 unit Shift to the left 2 units, reflect about the xaxis, Identify the vertex, a, the transformations with respect to

A new employee charged 8040 on his credit card to relocate for his first job. After noticing that the interest rate for his balance was 27 compounded monthly, he stopped charging on that account. He wishes to pay off his balance in 3 years using automatic payments sent at the end of each month. a. What monthly payment must he make to pay off the

Find a basis B for the span of the given vectors. 0 B 0

1. 10 Write the linear system X (31)x(int) without using matrices. That is, write it as a set or system of scalar equations.

MY NOTES PRACTICE ANOTHER A sinking fund is established to discharge a debt of 30,000 in 25 years. If deposits are made at the end of each 6month period and interest is paid at the rate of 4, compounded semiannually, w is the amount of each deposit (Round your answer to the nearest cent.)

Policies ent Attempt in Progress lumber Corporation reported ,720. culate the profit margin and g

A data set includes wait times (minutes) for the Tower of Terror ride at Walt Disney Worlds Hollywood Studios theme park at 500 PM. Using 37 of the times to test the claim that t mean of all such wait times is more than 30 minutes, the accompanying Excel display is obtained. Test the given claim by using the display provided from Excel. Use a 0.05

Question 3 s that are on the east side n). How many different ca

Find the mean for the data items in the given frequency distribution. Score, x Frequency, f 1 2 3 4 5 6 7 2 5 6 4 6 5 2 82 8 2 The mean is (Round to 3 decimal places as needed.)

a) Find the value of m that makes the line g(x) tangent to the parabola f(x). Let f(x)3x1 and g(x)4x11 b) Find the point of tangency (intersection) between f(x) and g(x) for the value of m found in part a). Let f(x)3x1 and g(x) mx11

Determine if the given vectors form an orthogonal set. ANA O These vectors form an orthogonal set. These vectors do not form an orthogonal set.

Let G be a connected graph with n vertices, where n 3. Prove that if each vertex of G has degree at least (n1)2, then G contains a Hamiltonian cycle.

1) Fully factor the following a) f(x)x 3x2x6 (K2 marks) b) f(x)8x 125 (k 2)

h.B 3 Ulex2 2.21.3 A 1.3 8.2 cm 11.1 cm .. 7.5 cm A 3 A 8. 3m

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