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march 2018
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Mathematics Questions and Answers March 26, 2018

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A person using a cellphone is located at A(3,-4). The nearest tower is located at B(0,8). The cellphone must be within 13km of a tower to work properly. Will the cellphone work? (5 marks)

Q4b (0 points) Prove that 211 4 2 29% +1) = g [n(n +1)(2n + 1)] by i=1 each of the following two methods: By using the identities mentioned in part (b) of question 3 . \f

When using historical data to estimate the market risk premium, it is important to focus on recent experience. Select one: True False

1. Find the inverse of the matrix. 6 2 8 3 Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. The inverse matrix is (Type an integer or simplified fraction for each matrix element.) O B. The matrix is not invertible.2 0 -2 6 - 5 Compute each matrix sum or product if it is defined. If an

2) If we run the 3-dart Experiment 250 times, we find that we get 2 hits followed by 1 miss (an Outcome) on 36 of the Trials. We also get more hits than misses (an Event) 70 times. a) What is the Empirical Probability of the Outcome? b) What is the Empirical Probability of the Event

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2. Based on data from Hurricane Katrina; the function dened by wk} = 1.1Ir':w. + 1220 gives the wind speed w[r.] [in mph] based on the barometric pressure it [in millibars, mo}. a. Approximate the wind speed for a hurricane with a barometric pressure of mm mb. I]. Write a function representing the inverse of w and interpret its meaning in context.

12. Natalie likes to mail lots of postcards when she goes on vacation. In 2014, the cost of a postcard stamp was $0.34. A. Natalie buys 10 postcard stamps. What is the total cost of the stamps? Explain. B. Natalie and her friends decide to buy 100 postcard stamps. What will be the total cost of the stamps? Explain

W WSM c b ha |W s Q x c P b c u N b K Q c| 4 Q ( D | | PAD (D C & https://elearning.wmich.edu/d21/le/content/494392/viewContent/5062669/View Question 4 Refer to the hydraulic system shown to answer the following question. (Round your answer to the nearest whole number) F2 Area A1 Area P1 Az P2 What is the lifting force generated by the large

A parabolic satellite dish measures 90.0 cm across its opening and is 12.0 cm deep. Find the distance between the vertex and the focus (where the receiver is placed}. Give your answer in centimetres [cm] rounded to the nearest cm but don't include the units in your answer. On your pdf, include a sketch of the satellite dish showing the vertex and

PART A Combine 2h 2h mig -T = m172 T - um2g = mz t 2 PART B 2h(m] + mz =-mzgu+mig t2

3. (12 points) Use the inverse methods to solve the system (Use determinants to avoid fractions) x + 2y 32 = 1 2x + y = 5 4x 23) + 52 = 2

1. A gardener has 300 inches of fencing. Does he have enough fencing to enclose a rectangular area of 2 m2? Explain. [ 5 T&I] (1 me= 1550 square inches)

Use the following information to answer question 1. A researcher discovered mould growing in a petri dish in her laboratory. When first observed, the mould covered only 12.5% of the dish's surface. After 24 hours, the surface area of the mould doubled in size, as shown in the table below. Time (h) Area covered (%) 0 12.5 24 25 If the mould

do not understand 6. [-/0.48 Points] DETAILS AUFEXC4 7.2.015. 0/100 Subm Given mcLOM = 540 and mcLON = 1310, find the measure of ZMON. MZMON = M N O Need Help? Read it Witch H 7. [0/0.48 Points] DETAILS PREVIOUS ANSWERS AUFEXC Find the measure of Zx

Use the graph on the right from a central bank that summarizes the amount of Student Loan Obligations student loan obligation of 37 million borrowers to determine how many of the (Percent) 37 million borrowers had less than $10,000 in debt. Of the 37 million borrowers had less than $10,000 in debt. (Type a whole number.) Under $10k: 44% $10K to

Find the area of pentagon LMNOP. 1042 M N -10 -9 -8 -7 -6 -5 -4 -3 2 -1, 1 2 3 4 5 6 7 8 9 10 P O -10- Write your answer as a whole number, decimal, or simplified radical, Do not round. square units

Problem Solving with Equations (For use with Lesson 1-9) By working through the steps in the problems below, you will gain skill in solving problems by using the step plan and an equation in one variable. Problem 1 A parking meter contains $8.80 in nickels, dimes, and quarters. If the numbers of nickels, dimes, quarters (in that order) are

Approximate f (x) = In x for the given value of x. Round to four decimal places. f(9T) Select one: O a. 3.3420 O b. 1.4514 O c. 2.8274 O d. 3.8274

please help solve !!! Determine the monthly principal and interest payment for a 15-year mortgage when the amount financed is Click here for table of Monthly Payments $85,000 and the annual percentage rate (APR) is 6.0%. The monthly principal and interest payment is $ X (Round to the nearest cent as needed. ) Monthly Principal and Interest Payment

Help pls Reteach Exponential Functions, Growth, and Decay The base of an exponential function indicates whether the function shows growth or decay Exponential function: f(x) = ab" a is a constant. .b is the base. The base is a constant If 0 1, the function shows growth. x is an exponent ((x) = 1.2x g(x) =10(0.6)* 8=1 a= 10 b = 1.2 b= 0.6 b > 1, so

In a circuit with an inductor of inductance L, a resistor with resistance R and a variable voltage source E(t). E(t) = L (di/dt) + Ri The current i is measured at several values of time as 1.00 1.01 1.03 1.1 3.10 3.12 3.18 3.24 If L = 0.98 henries and R = 0.142 ohms, what is E(1.03) using backward difference approximation

Answer last part sample obtain.. C According To A Stu... C Suppose A Life Insu. 2022SP_MAT-120-FW1 Probability and Statistics y! Suppose a life insur. Tyera Mckenzie Homework: 8.2 HW - Distribution of the Sample Proportion Question 6, 8.2.16-T Part 4 of 5 HW Score: 49%, 49 of 100 points Points: 18 of 36 According to a study conducted by a

Need more detail in explaining the reasoning Question 4 - Escape and Prisoner Sets (4 marks) Consider the function f(z) = z2 + c use zo = 0 + 0i. (a) Let c = i. Iterate zo through the function and determine whether zo is in the prisoner set of f (z). Explain your reasoning

20 PERFORMANCE TASK NO. 1 3d Quarter MATHEMATICS 5 Nome. Lesson: Relationship of Percent, Fractions, Ratios and Decimals Directions: Read the problem carefully. Answer each item. 1. What fraction of the cellphone's battery is used it the screen says that the remaining battery is 29%8 2. Carlo scored 65 out of 100 item test in Math. What percent of

Reword the following answer: Answer: The probability of selecting a 7 both times is \( \frac{1}{200} \). Explanation: To find the probability of selecting a 7 both times, we need to consider the probability of each independent event and then multiply them together. 1. Probability of selecting a 7 from 0 to 9: - There are 10 possible integers

What did Brahmins prohibit in order to maintain the caste system? In Hinduism, which three deities are understood to stand outside the natural world and control it? What is bhokt

A 12% salt solution is mixed with an 18% salt solution to obtain five liters of a 15% salt solution. How many liters of each solution must be added?

Find the sample mean x overbar for each possible sample of size nequals2. Sample x overbar 1, 4 enter your response here 1, 7 enter your response here 4, 7 enter your response here (Type integers or decimals.)

Determine and state the domain and range of the following relations 24 . (-1, -1), (4, -6), (1, 0), (-1, 7), (-2, -2) 25 . (-10, -5), (-6, 3), (0, 1), (1, -4), (8, 16), (10, 5) Declaration I know that plagiarism is wrong . Plagiarism is to use another's work and pretend that it is one's own . I declare that this is my own work

True or false, you can divide unlike polynomials by canvelling

Cynthia owns a business that sells hand made jewelry. the profit function for her business can be modelled by the equation p(x) = "-0.5x+8x-9" where x is the quantity sold in hundreds, and p(x) is in thousand of dollars. how many pieces of jewelry must Cynthia sell in order for her business to break even

as a part of a landscaping project you put in a flower bed measuring 20 feet by 30 feet. To finish off the project, you are putting in a uniform border of pine bark around the outside of the rectangular garden. You have enough pine bark to cover 336 square feet. How wide should the border be?

Q1 The differential equation " + () + () = 0 is known as a homogeneous second-order linear equation. It contains " (second order). The terms ", and all have an exponent of 1 (linear). And the right hand side of the equation is 0 (homogeneous). Prove: if 1 () and 2 () are two solutions for this equation, then any linear combination of these two

Jennifer and Brody are going scuba diving. In the particular spot they are diving, the intensity of light is reduced by 2 % for each meter that they descend below the surface of water. a) Write the exponential decay model that relates the amount of light L, that is available at each depth, d, in 1-m increments. b) What are the domain and range of

Do motivation levels between upper-level (group 1) and mid-level (group 2) managers differ? Use the information below to answer the following questions. Upper-level:n = 61, x-bar = 77.4, and s = 10.06 Mid-level:n = 109, x-bar = 79.71, and s = 6.43 Solve for the appropriate test statistics for a significance test comparing the two means. (5 points)

Please explain the correct solutions showing all the work with clear, readable hand handwriting or typing. I appreciate any help you provide. Use the following functions to: find, simplify, and identify the domain of each of the function combinations. f (x) = x2 - 13x and g (x) = x + 2 a.) Find f + g and the domain of f + g. b.) Find f - g and the

Extensions Help Last edit was made on February 24 by Carol Fan 100% View only * Simon deposits $500 every half year into an investment account that earns 7% per annum compounded semi- B C E F G Simon deposits $500 every half year into an investment account that earns 7% per annum compounded semi- annually. Create an investment table to show his

MHF4U grade 12 Math Lesson 2.8 Solving Rational Inequalities & Equalities: Okay task Write a concise, personalized summary of the key concepts and skills from this lesson. Make sure you: Identify key vocabulary Make connections among representations (e.g. equation and graph) and ideas Include selective unique examples and sketches (ie not directly

A survey of students shows that 60% like Math, 80% like History but 10% do not like Math or History and 50% like both. Determine the probability of liking History given they do not like Math. (Hint: create VENN diagram)... Select one: a.3/4 b.7/10 c.17/20 d.4/5

Mrs. Hanger is painting the following picture of an H to hang in the entryway of her home.She has made the following scale drawing as her model.The scale used on the drawing is 1:6.On the scale drawing, H is centered on the page andisinches from the top,bottom, and sidesof a drawing. The "H" is going to be painted brick red in the center of a

Find the numbers The larger of the two numbers is 6 more than four times the smaller. The difference of the larger number and the smaller number is 9. Find the numbers

18 Write the solution of the equation 2(4 - sin x) - -lsin x + 3, 270 5 x 5 360 Record your answer to the nearest degree. wt of

i need part ll g-j answer clealry please Given: The box crate is being lifted up the plane, which is inclined al an angle d using the motor-winch Af and the cord and pulley arrangement shown on the right. The weight (F-) of the crate is 500 Lb. The surface on which the crate rest is very rough, and the coefficient of static friction () between the

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1.5 Consider the Markov chain with state space S = {0,...,5} and transi- tion matrix 0 1 2 3 4 &5 o[.5.5000 0 1{.3.7000 0 p_2/00.10.90 3|.25.25 0 0 .25 .25 40 0.70 .3 0 5|0 2022 4 What are the communication classes? Which ones are recurrent and which are transient? Suppose the system starts in state 0. What is the probability that it will be in

Identify the dimensions indicated by the readings on the scales below. Place your answers in the spaces provided. 172 76 8084 88 92 14 12 10 8 6 2 E -CV 9L 18 E 9 20 7. 20 O 18 16 9 6 3 2 78 9 08 8 10 12 76 68 8. 3 28 26 24 22 2 3

need help to solve this, 32. Find the perimeter and area of the geoboard gure below: 33. Around the world in 80 days? If the diameter of the earth is 8.000 miles. calculate your speed in miles per hour if you were to take 80 days to circumnavigate the earth about the equator. Use 3.14 for It. 34. The Pizza Palace is known throughout the city for

In 26-33, for each statement in the referenced exercise write the contrapositive, converse, and inverse. Indicate as best as you can which of these statements are true and which are false. Give a counterexample for each that is false.21. V integer n, if n is divisible by 6, then n is divisible by 2 and n is divisible by 3

For each of 11 countries, the accompanying table gives the cigarette consumption per capita in 1930 and the male death rate from lung cancer 20 years later in 1950 (Doll, 1955; reprinted in Tufte, 2001). Calculate a Pearson r and write a statement telling what the data show. Country Per Capita cigarette Male death rate (per million) consumption

Question 3 Not yet answered Points out of 4.00 P Flag question Determine the horizontal asymptote, if any, of the graph of the rational function 4x2 - 3x - 8 f (x ) : 2x2 - 7x +5 Select one: Oa. y= 8/-5 Ob. y = 0 Oc. y = 3/7 Od. y = 2 Oe. no horizontal asymptote

explain Myocardial Infarction . Transmural Infarcts . Subendocardial Infarcts . Necrosis of entire thickness of the . Innermost layers of the myocardium myocardial wall Transmural (epicardial) injury: Subendocardial injury: ST ST ST ST . VS . VS ST B ST A

what is the length of amb? . Another questionwhat is the area of the shaded region? round to the nearest? The circumference of circle C is 144 M 120 What is the length of AMB?10 Find the area of the shaded region. Round to the nearest tenth 120 125 m E Area of shaded region

Hi, I want to ask how to solve this question? Thank you!

Dylan makes cupboards using wood. One of his cupboard designs is made from: 3 small panels 550 mm by 550 mm 4 large panels 2150 mm by 550 mm. The boards used to cut the panels are 2500 mm by 2000 mm. There must be no joins in the panels. Dylan has an order for 6 of these cupboards.He buys 9 boards to cut the panels. Has Dylan bought enough wooden

Given the followingelliptic curvey 2 x 3 + 5x + 4 mod 13, answer the following: [Points 4] What are the lower and upper bounds on the number of integer points on this curve? [Points 8] Find the double of the point (1,6) on this curve. [Points 8] Find the addition of points (1,6) and (0,2) on this curve.

What is the relative frequency (actual percentage) of all Price ($) that are less than 400,000? Select the closest answer to your computation. Rounding may cause slighly different answer. Hint: sort the Price ($) ascendingly. Group of answer choices 65.24% 56.24% 75.24% 57.24% \f\f\f\f

course is partial differential equations. please explain as specific as u can. \f

provide solution as soon as possible 1. (12 points) Evaluate 2 x dV E where E is the region under the plane 3x + 2y + z = 6 that lies in the first octant. 1. (8 points) Evaluate Axzy - 2 dV E where E is { (x, y. z)|0

Background: For 0 s 1 < s 2 , we recall that the pair ( W s 1 , W s 2 ) is a centered Gaussian vector with variance matrix ( s 1 s 1 s 1 s 2 ) , and we verify therefore that W s 1 W s 2 is also Gaussian with characteristics E [ W s 1 W s 2 ] = s 2 s 1 W s 2 and V a r [ W s 1 W s 2 ] = s 1 ( 1 s 2 s 1 ) . Denote s = 2 s 1 + s 2 , we have that W s (

2. The following measurements were made on a Thyrite resistor constructed of Nichrome wire: I(A)0.51.002.004.00 V ab (V)1.943.887.7615.52 (a) Use EXCEL to graph V ab as a function of I. (b) Does Nichrome obey Ohm's law? how can you tell? (c) What is the resistance of the resistor in Ohms?

The circumference of a basketball follows a Normal distribution with a mean of 29.5 inches and a standard deviation of 0.1 inches. Using the Empirical Rule, answer the following: (HINT: enter your answer using the percent sign, for example 50%) a. What percent of basketballs are at least 29.6 inches in diameter? type your answer... b. What percent

Assume that A does. net contain the free variable 2:. Show that V$(A } 13(3)] E A :~ VIP(I]

8. Square ABCD has side length 2J5. Determine the exact area of the region inside square ABCD consisting of all of the points whose distance to at least one of the vertices is at most 2. (Hint: 12 471'

Please solve all the questions Show the necessary steps, to get to the final solution. It would be highly appreciated if I could get the steps and the final solution within 3-4 hours. Thanks a lot! Question 5 (Basics of Vectors (313)) Given the following three vectors: 0 w _ 5 4 ' ' 0 ' 5v_ 2" (i) Compute the inner product (or dot product or

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B.1.1. Copy the report to a new one with your name in it: "rotDougPhoneList". 8.1.2. Edit the new copy of the report to have the new different record source (e.g., qryptDougPhoneList). 8.1.3. Save the edited version of the new copy of the report. 8.1.4. Copy the original record source to a new one with your name in it: e.g., "qryrptDougPhoneList".

Data Analysis 1) On the graph paper supplied, plot "Mass (Y) versus Volume (X)" for all four cylinders measured. Staple your graph to this report form. Instructions for Graphing Data - Use a sharpened pencil. - Use a ruler to draw your axes. - Choose axis scales that make use of the entire sheet of graph paper. - Clearly number and label your

Finding a final amount in a word problem on exponential growt city has a population of 240,000 people. Suppose that each year the population grows by 7.75%. What will the population be after 10 years? Use the calculator provided and round your answer to the nearest whole number. people X

Pythagorean Theorem, Proof 115 The proof below is by Nileon M. Dimalaluan, Jr. and was published in the online journal Chiaroscuro of a High IQ Society (March 2004.) The proof is based on the following diagram: D a B C E. b A B' D' Since triangles ABC and AED are similar T atc Triangles EBD, EBC are equal, each with the area of =ra. 2 If F denotes

33. [-/3 Points] DETAILS HARMATHAP 12 1.6.019. A manufacturer sells belts for $13 per unit. The fixed costs are $1200 per month, and the variable cost per unit is $10. (a) Write the equations of the revenue R(x) and cost C(x) functions. R ( X ) = C(x ) (b) Find the break even point. It takes units to break even. Need Help? Read It Show My Work

A wheel (radius = 12 cm) is mounted on a frictionless, horizontal axle that is perpendicular to the wheel and passes through the center of mass of the wheel. A light cord wrapped around the wheel supports a 40-kg object. If released from rest with the string taut, the object is observed to fall with a downward acceleration of 3.0 m/s2. What is the

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Question 1 (5 points) =) Listen Without graphing, answer the following questions for each of the functions below: i. What are the end behaviours of this type of function (what quadrant does it begin and end in?) ii. What is the maximum and minimum number of x-intercepts for this type of function? iii. What is the maximum and minimum number of

the question

5. Consider the following five identical capacitors (each 10mF) connected to a 20Vbattery. 2 1 4 HHH 3 + 5

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Name. L INTRODUCTION TO EXPONENTIAL FUNCTIONS Mr. Gonzales is purchasing a house! He wants to purchase a home of around $200,000, but there are a ton of options for the interest rate, how many years the loan is for, and the down payment. Explore how changing different parts of the situation affects how much total money Mr. Gonzales pays for his

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For the quadratic equation f(x) = -2x2 - 8x + 3 = 0, a. find the equation of the axis of symmetry. b. find the coordinates of the vertex of the parabola. c. Find the minimum or maximum value of the function

3. (D 4 -2D+10) 2 y=0 4. (D 3 +D 2 -5D+3) 2 y=0 5. (D 4 +5D 2 +4) 2 Y=0 \f

Surface Area & Volume C. The surface area of a can is 312 pi units squared. The radius is 6 units. What is the height and what is the volume? D. The height of a can is 6 inches and the radius is 1.5 inches. What is the surface area and volume of the can

Solve the system using elimination. Enter your answer as an ordered pair. 2x+0.5y=3 x+2y=8.5

The ceiling of an arena is 35 m above the floor. What is the minimum speed that a thrown ball would need to just reach the ceiling?

i need help The following graph summarizes the test scores of 600 students. The data is normally distributed with a mean of 82 and a standard deviation of 5. Shade the region under the curve where only the data for approximately 285 students are located. Must show all work to receive credit!!! 00

Question

Question 2 An Sarina made $54,000 in the calendar year. How much does she owe in federal taxes

If you notice that you can double your Ethereum coins every 3 months. If you start with 10, how many coins will you have after 2 months? Represent this with an equation and solve.

Prove that if a has order 3 modulo a prime p, then 1 + a. + (1.2 E 0 (mod p]; and 1 + a. has order 6 modulo 1

Donna drove 14 laps on a race track. Each lap was the same length. If she drove a total of 30.8mi what was the length of each lap? Answer in yards . do not round your answer.

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PLEASE HELP Which line segments in the diagram below are parallel? A 130 B C 130 D E F 50 G H 70 O a AB is parallel to GH O b AB is parallel to CD O c No lines are parallel. O d AB is parallel to EF Oe EF is parallel to GH Of CD is parallel to GH O g CD is parallel to EF

Question 9 0/2 pts 9 2 0 Det Write an equation for the line parallel to y = 4x + 4 and passing through the point (1,3) y Question Help: Messa

10.4.B-27 Heather was 20th in a class of 170, whereas Oliver, who is in the same class, has a percentile rank of 20. Which student has the higher standing in the class? Who has the higher standing? Oliver Heather

Create the smallest pyramid possible with the tool, and record the values of the base length, base width, height, and volume (in terms of ? ).Then scale the original pyramid by the given scale factors, and record the resulting volumes (in terms of ? ), to verify that the formula V ' = V k 3holds true for a pyramid. Setti Wind (555 G LX (99) B Chas

3. 7'1. A mortgage of $190 {300 is required to purchase a house- The mortgage will be repaid with equal monthly payments over 25 years at 8% compounded monthly. a} What is the total monthly payment? b) What is the total interest paid oyer the 25 years? c) How does the total amount paid compare with the amount of the mortgage? d} What percent of

Use the factor theorem to find the polynomial of degree 3 having zeroes x = -3, x = 1 + 5j, and x = 1 - 5i. Assume a lead coefficient of 1. O P(x) = x3 + x2+ 21x +79 O P(x) = x3 + x2+ 20x+79 O P(x) = x3 + x2+ 20x+78 O P(x) = x3 + x2 + 21x + 78

(1 point) The graph of the function f(x) = 7 + log3 x can be obtained from the graph of g(x) = log3 x by one of the following actions: (a) shifting the graph of g(x) to the right 7 units; (b) shifting the graph of g(x) to the left 7 units; (c) shifting the graph of g(x) upward 7 units; (d) shifting the graph of g(x) downward 7 units; Your answer

kindly solve this pde question correctly Solve the following heat equation by using the method of separation of variables at = 2 05:

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