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Mathematics Questions and Answers April 24, 2023

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Linear Algebra Find the best-fitting curve of each type below, using (2, 46), (2, 17), (1, 4) and (2, 1) for data points. a. [2 points] General parabolas: y = ax^2+ bx + c. b. [2 points] Parabolas passing through the origin: y = ax^2+ bx.

Provide an example of a probability distribution that has four distinct outcomes. In this example, please identify the outcome and the probability of that outcome occurring. & A die is rolled 20 times and the number of fives that occur is reported as being the random variable. Is this a binomial random variable? Why or why not.

A fair die is rolled four four times. What is the probability of obtaining no 5 5 's?

Carmen invested $2,000 in a mutual fund that is front-loaded, with a loading rate of 4.75%. What was the loading charge of this fund

In a study of the life expectancy of 500 People in a certain geographic region, the mean age at death was 72.0 years and the standard deviation was 5.3. If a sample of 50 people from this region is selected, find the probability that the mean life expel any will be less than 70 years. Round intermediate z-value calculations to 2 decimal places and

Now combine the equations 1,2 and 3 and set up the differential equation of pressure gradient for Troposphere. 1) Solve the differential equation and find the pressure in troposphere as a function of height. 2) Pick 15 different z values in Troposphere and calculate Pressure at those heights. Save the table. You will use it later after you are

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Please complete the following questions, which require detailed handwritten steps. 4 20 31 (2) Consider the matrix A = 6 -5 -6 -11 -16 (a) Find a basis for the column space (b) Find the rank of the matrix (3) Find the coordinate matrix of a = (12, 6) in R" relative to the basis B' = {(4,0), (3, 0) }
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6. A polygon undergoes a series of five dilations, each with a scale factor of 1.3. A sixth dilation produces a polygon that is congruent to the original. Determine the scale factor for the sixth dilation. Round the scale factor to the nearest thousandth. Scale factor
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Consider the hyperbolic paraboloid z = -y2 A drone is programmed to fly along the surface of the hyperbolic paraboloid. The flight instruments measure the velocity in the c, y and & directions as di - 4 dy dt dt 4 dz - 4. The GPS measures c = 20, but the GPS does not measure y (to keep costs down). What is the y co-ordinate? The chain rule can
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Maximize p = 2x + y subject to x + 2y s 8 -x+ys5 x+ys5 x 20, y 20. (x, y ) =
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mheducation.com/ext/map/index.html?_con=con&external_browser=0&launchUrl=https%253A%252F%252knewconnect. Saved Suppose A x B= Q, where A and Bare sets. What can you conclude? Multiple Choice O A # 0 or B # @ as the product will not be O if both the sets are empty. O A # 0 and B# @ as product can be O if none of the sets are empty A = 0 or B= 0 as
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The study of shapes is also called geometry. Do you use geometry formulas in day-to-day life? If yes, what geometry formulas do you use? How do they help you? if not, in what areas of your life the formulas from Week 3 reading the formulas can be helpful? Give a specific example of the situation. 2. Reflect on your past few days and think about

12 Line HF is represented by the equation y = - 2 X 2 . Line DW is parallel to line HF. The coordinates of point D are (8, 1 ) . 6 Determine the equation of line DW in slope-intercept form. OW THE X y = -3 -6 -9 -9 -6 -3 0 3 6 9 12 Slope of Line HF Slope of Line Point-Slope Form of DW Line DW m2 y - y1 = m x-x1)
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Cameron likes to help around the house. He does simple chores at home, like matching socks or clearing the table after eating. This is typical behavior for a ____ old. Group of answer choices 5 year 2 year 8 year 1 year

Based on the slope field and the geometrical meaning of Euler's method explain why the ap- proximations are so inaccurate for this particular value of the stepsize

What is the standard deviation of this date set.12,17,23,14,19,18,22,22,18,14,15

\fm= y 2 y 1 71 = =6/5 x 2x 1 50 y y 1=m ( xx 1 ) ( 65 )( x0) y1= y= ( 65 )x +1

Point R lies between points P and Q. Find the length of P R if we are given P Q = 102x, P R = 4x, and RQ = 6x 2. (Hint: draw a picture!) (a) 8 (b) 4 (c) 12 (d) 5 (e) None of the above

Answer should be informal, and around 2-3 paragraphs with2 in-text citations from internet sources.See below for question.( I check for plagiarism) Provide an example of a binomial random variable as it applies to something in your personal or professional life. Specifically, provide a real world example of a random variable that would satisfy the

A toy forklift is 15 cm tall. If the toy is a model of a real forklift with a scale factor of 1:24. What is the height, to the nearest tenth of a meter, of the actual forklift? show your work. Hint: you need to show your ratio and proper final answer.

Using the form provided, rate each job with the point system on the Job Evaluation Computation Worksheet. Preview the document and indicate the relative ranking of the jobs based on their total point. Each job can only use a particular level only once. This means that if you believe a Job Developer has the highest level of Supervision, it cannot

3.1-3.2 homework Construct a graph to represent the number of gallons of fuel remaining in Jim's tank, n , in terms of the number of miles, x , that Jim has driven since filling his tank with fuel. Plot the point on the graph that represents the amount of fuel remaining in Jim's tank when he has been driving for 250 miles. Be sure to plot the

In a newspaper trivia column, L. M. Boyd (Boyd, L. M.: The Grab Bag (syndicated newspaper column), The San Francisco Chronicle (July 17, 1999)) ponders why lie detector results are not admissible in court. His answer is that "lie detector tests pass 10 percent of the liars and fail 20 percent of the truth-tellers." If you use these percentages and

En qu parte de la ciudad est la oficina de Michelle? Su oficina est en el medio de la ciudad. Qu hace Michelle a veces en la plaza bonita enfrente de la iglesia? A veces come en la plaza enfrente de la iglesia. Qu das de la semana suele ir Jorge a Tegucigalpa? Jorge suele ir a Tegucigalpa los fines de semana . Dnde dice Jorge que es comn ver arte

The homepage of your website receives 2352 visitors in the month of August. You received 104 leads/conversions in the form of contact form submissions from that page during that month? What was the conversion rate of your homepage? (Round to the nearest hundredths place)

1.)On the distant planet Cowabunga , the weights of cows have a normal distribution with a mean of 547 pounds and a standard deviation of 71 pounds. The cow transport truck holds 14 cows and can hold a maximum weight of 7882. If 14 cows are randomly selected from the very large herd to go on the truck, what is the probability their total weight

Compltez les questions. Employez les formes correctes de : QUEL-QUELLE-QUELS-QUELLES = ADJ,.+ NOM LEQUEL- LAQUELLE-LESQUELS-LESQUELLES AUQUEL-A LAQUELLE-AUXQUELS-AUXQUELLES DUQUEL-DE LAQUELLE-DESQUELS-DESQUELLE (8x3 pts) 24 points VERBES AVEC PRPOSITION : Aller S'intresser Penser Rver Dire Tlphoner VERBES AVEC PRPOSITION DE : Parler de Avoir

Complete each statement with the appropriate impersonal form of the verb provided. OJO! Don't forget to include the se pronoun. 1. (tomar) una siesta al lado de un nopal. 2. (mirar) muchas telenovelas al da. 3. (gastar) mucho dinero en cirugas cosmticas. 4. (comer) frijoles todos los das. 5. (celebrar) muchas fiestas durante el ao. 6. (consumir)

The line passing through which two ordered pairs would be parallel to the equation '1' = 4x 1? A. [1,-3}ehd(2,1} B. (-4,?)ehd (-1, -5} c. (-8, -4}and (o, -2} D. (4, 2) and (a, 1}
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CT 2. Let A = 3 k 8 (a) For which value(s) of k is A non-invertible? (b) For which value(s) of k is A invertible
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64. If I is an ideal of a ring R, prove that Ifx/ is an ideal of R/x]
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For my lin alg course, I got answer wrong, but I'm not sure why. Please help! 2. Let A = and define the linear operator T : M2x2(R) - M2x2(R) by T(X) = AX - XA. (b) Find - basis for ker(T) using one of the fun capacity state which Lamont vu used. ( c ). which lun to you wed. (d) Let B E M2x2(R). Prove that AB = BA if and only if B E ker (T)
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I need help can you help me ZJKL is a straight angle decomposed into 2 non-overlapping angles, LJKM and LMKL. If ZMKL measures 1040 what type of angle is ZJKM? What is the measure of ZJKM
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Help how do i solve 4.11 Work each of the following: (i) Change the undamped pendulum problem Lo" = -gsind, e(0) = a, o'(0) = 0, to the dimensionless form Er = - sin(ex), r(0) = 1, *(0) = where
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f) To ensure the desired sampling of individuals, Rob imposes even stricter requirements. He fixes the exact percentage of people that should be surveyed from each population. The re- quirements are listed below: Population percentage of people surveyed 18 to 25 25% 26 to 40 35% 41 to 50 20% 51 and over 20% Silicon Valley 20% Big cities 50% Small
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A doctor tells a parent to give a child 2/3 a medicine dose daily for 14 days. A medicine bottle comes with 10 doses. The parent wants to know if the bottle has enough for 14 days, so computes 14 2/3 = ? Simplify.

2. Determine the units of the quantity described by each of the following combinations of units: a. kg (m/s) (1/s) b. (kg/s) (m/s2) c. (kg/s) (m/s)2 d. (kg/s) (m/s)

A large tank is used to mix paint. Before someone can enter the tank for cleaning: Group of answer choices the liquids must be drained from the tank. the mixer must be shut down and locked out. the air in the tank must be tested to determine if it is hazardous. all of these none of these

I have a lesson plan for comparing two two-digit numbers based on meanings of the tens and one's digits, recording the results of comparisons with the symbols >, =, and

Make sure you apply concepts from the readings in determining why this is a candidate for an observation study. In addition, discuss the varieties of information that might be retrieved. Select at least two content areas of study and operationally define the observation acts that should be measured.

The first few numbers in the 17th row of Pascal's triangle are: 1, 17, 136, 680, 2380, ... How would you determine the value of C(18, 3) according to these values? Group of answer choices 2380 136+680 680 680+2380

Select the solution to the following system of equations: 4x 2y = 4 3x - y = -7Write the following expression as a single complex number. fraction numerator 5 plus i over denominator 4 minus i end fraction

If the triangle below is equilateral, write an expression using parentheses to show the perimeter of the triangle. then give the simplified expression, 4x-3

Emily has pennies and five dollar bills in her pocket. The number of pennies is eight less than three times the number of five dollar bills. Letf represent the number of five dollar bills. what is the expression for the number of pennies

Let a hypothetical month have exactly four weeks. Assume an investment of 100 is made at the beginning of week one and it has the following end of week values: w1 = 100.75; w2 101; w3 = 100.95; w4 = 101.05. Calculate the weekly arithmetic returns

A intersection not B union not C. Region I: Items only in group A, not in B or C. Region II: Items in A and B, but not C. Region III: Items only in B, not in A or C. Region IV: Items in A and C, but not B. Region V: Items in A, B, and C. Region VI: Items in B and C, but not A. Region VII: Items only in C, not in A or B. Region VIII: Items not in

Cluny Abbey III grew to be the largest in Christendom for over 200 years. True False

Activity Suppose that the following are the constraints of an LP problem. Graph the feasible region for the problem. inc-2y 2 -4 5x+y 1 5 2x+3y 26 x20 322:0 Exercise A dog owner wants to minimize the cost of buying dog food for his bullmastiffs. Two types of dog food are available mixed with three kinds of minerals: calcium, phosphorous, and
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[35 p] 3. Solve the differential equation with initial condition given below: dy X'-x-1 dx , with y (0) = 1
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Initial Value Growth or Decay Rate as a % Exponential Function %Select an answer Growth Decay Correct f(x)=635(1.25)xf(x)=635(1.25)x Incorrect%Select an answer Decay Growth Correct g(x)=3148(1.06)xg(x)=3148(1.06)x %Select an answer Growth Decay Correct f(x)=1855(0.72)xf(x)=1855(0.72)x %Select an answer Growth Decay Correct

Lesson 1.6 - Determining unknown angles in a right angle triangle. Learning Goals: By the end ef the lessen, I can determine one of the angles in a right angled triangle. \f3. Police are responding to a distress call: Police headquarters and the trouble site are shown. Squad cars and a helioopter are both immediater dispatched to the site from
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Out-of-pocket maximum is a type of cost-sharing. True False

13. Refer to the figure below right. Line t is a transversal. State the postulate or theorem that justifies each information below. a. m21+m26=180 m n b. 24 = 28 C. m42= m28 2 3 d. 23 and 28 are supplementary 5 angles. 6 e. m41=m27 f. 28 = 26 g. 25+ 26=180 h . 14. Solve for x, y and z. a. 3y 520 1320 b. Let m, n, p and w be lines. m (24+5)0 n
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Checkthe expressions whose simplification involves using the distributive law. (-5x)13

Now, if the mean is 25 and the standard deviation is 6 , find the probability thatxassumes a value between 27.5 and 55.0 . Round your answer to four decimal places.

Keiths Florists has 16 delivery trucks, used mainly to deliver flowers and flower arrangements in the Greenville, South Carolina, area. Of these 16 trucks, 7 have brake problems. A sample of 6 trucks is randomly selected. What is the probability that 2 of those tested have defective brakes?

Assume that you want to test the claim that the paired sample data come from a population for which the mean difference is d = 0. Compute the value of the t test statistic. Round intermediate calculations to four decimal places as needed and final answers to three decimal places as needed. x 28 31 20 25 28 27 33 35 y 26 27 26 25 29 32 33 34

The store is selling lemons at $0.56 each. Each lemon yields about 2 tablespoons of juice. How much will it cost to buy enough lemons to make two 9-inch lemon pies, each requiring half a cup of lemon juice?

I have asked this question before, but still confused on the answer. Hoping for a different explanation to help me better understand. At a newsstand, out of 46 customers, 27 bought the Daily News , 18 bought the Tribune , and 6 bought both papers How many customers bought something other than either of the two papers?

itical Reflection Journals (30%) JE DATE ssion 5 BJECTIVE lowing the guidelines of the BC Early Learning Frame develop critically reflective skills to apply to journal ent ections during this course. QUIREMENTS
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Suppose the lengths of human pregnancies are normally distributed with mu equals = 266 266 days and sigma equals = 16 16 days. Complete parts (a) and(b) below. (a) The figure to the right represents the normal curve with mu equals 266 =266 days and sigma equals = 16 16 days. The area to the right right of Upper X equals 285 X=285 is 0.1175 0.1175

(Level 4) The element named 'home_description' and that reads \"Find the nearest available mun'ummmqn){ element. Note that this particular element type should always be used to add text that is there simply to be seen, not edited
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Find the new coordinate vector for the vector x after performing the specified change of basis. Consider two bases B = (b1, b2} and C =
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\fIf Am = O for some positive integer m, prove that O is an eigenvalue of A, and this is the only eigenvalue of A
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Youre creating a problem where the answer will equal 16. Im not trying to submit this work as my own, my homework requires me to make a problem and make sure it equals a specific number. Create an equation of a circle in conic form and convert to standard form where r squared= 16.

What monthly compounded nominal rate would put you in the same financial position as 7.5% compounded semiannually? The compounded monthly nominal rate is

To test H0: = 0.500, what is the test statistic for a sample proportion 0.566 and sample size 70. Enter your answer with 3 decimal places.

of 5. A vehicle that has been given the Spend Under Management (SUM) designation has which characteristics? 0 Coo r d i n a t es with OSDBU o ffi ce s 0 U ti li z e s v e nd o r m a n a g e m e n t 0 Has I n d u s t ry e n g a g e m e nt @ A ll c h o i c e s are co rr e c t CORR E CT 0 S u pp o rt s e x i s ti n g po l i c y

Determine the consumers' surplus and the producers' surplus at the equilibrium price level for the following demand and supply functions. (Round your answers to the nearest cent.) p = D ( x ) =115.81.6 x p = S ( x ) =0.4 x 2 +15 consumers' surplus=?$ producers' surplus= ?$

A random sample of 64 recently sold homes in Toronto yielded an average selling price of $405,600. Assume that the population standard deviation of the selling price of a home in Toronto is $67,500. (a) Suppose you wish to estimate the mean selling price of all homes in Ottawa to within $10,000 with 95% confidence. How many houses should be

In a random sample of seven cars, each car was tested for nitrogen-oxide emissions (in grams per mile) and the following results were obtained: Nitrogen-Oxide Emissions (in grams per mile) 0.06 0.11 0.16 0.15 0.14 0.08 0.15 (based on data from the Environmental Protection Agency). (a) Construct a 98% confidence interval estimate of the mean amount

For a test of Upper H 0 p=0.50, the sample proportion is 0.37 based on a sample size of 100 a) Find the test statistic z. b)Find theP-value for H a p <0.50. c) Does theP-value in (b) give much evidence against H 0

1. Which one of the following points lies on the graph of the function f (x) = \\_'2x+5 ? (A) (0,5) (B) (2,3) (C) (510) (D) (2, 3)
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Hello, In statistics, is Section of class data discrete or continuous? Is the data qualitative or quantitative? Is the data nominal, ordinal, ratio, or interval?

(2 points) Find the solution to the following Ihcc recurrence: an = 26an-1 - 169an-2 for n > 3 with initial conditions a] = 286, a2 = 6760. an =
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Find the monthly payment and estimate the remaining balance. Assume interest is on the unpaid balance. 5-year computer loan for $2680 at 5.8%; remaining balance after 2 years. The monthly payment is $ (Round to the nearest cent as needed.)
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DIFFERENTIAL EQUATIONS: {4} The indicated function y(x) is a solution of the given differential equation. Use reduction of order to find a second solution ys(x). 2. 2y +ry By =0 =1 Solution
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In a study to assess the effectiveness of garlic for lowering cholesterol, 50 adults were treated with garlic tablets. Cholesterol levels were measured before and after treatment. The changes in their LDL cholesterol (in my/dL) have a mean of 8 and a standard deviation of 4. a) Construct a 95% interval estimate of the mean change in LDL
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Assume the probability is _ that a child born at any time is a girl and births are independent. What is the probability of the event that if a family has three children (no twins), they are all girls? . . . The probability is (Type an integer or a simplified fraction.)
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please answer with details in how you solved it and please be neat. Thanks. Neatness and organization of your answers matter! Your answers should be legible, there should be no scribbles, and should be written on the worksheet paper itself. . Answers without supporting work will not be given credit. Please ask if unsure of amount of work to show.
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Pattern/Game Question: Magic Square Please help solve. \f
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Answer A cylinder is shown below. 11 in. 6 in. Which diagram is a net for the cylinder? 11 in. 11 in. - -- --- 112 in. 6 in. 2277 in. 6 in. 11 in. 11 in._ What is the surface area of the cylinder? Use It ~ 3.14 and write your answer as a decimal rounded to the nearest tenth. about square inches Submit
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1.find the amount to which$ 6000 will grow if invest at 4.85%p.a compunded quarterly for seven years?(do not round i or n) Future value? 2.what is the future value after 66 months of $2190 invested at 5.12% p.a compounded semi-anually? do not round i or n 3.What will be the wothd of deposit of$1807 made into registered retirement savings plan for

Given a limit of 8 hours for forking in a 90 dB environment and the fact that as the sound level increases by 5 dB, the allowable time decrease by 50%, what is the safe time limit for a 115 dB sound? Fundamentals of Industrial Ergonomics, by B. M. Pulat

Compute the probability of flipping a coin and getting heads, given that the previous flip was tails. Suppose a math class contains 25 students, 14 females (three of whom speak French) and 11 males (two of whom speak French). Compute the probability that a randomly selected student speaks French, given that the student is female. A certain virus

Find the area of the shaded region under the standard normal curve. z equals 1.91 A bell-shaped curve is divided into 2 regions by a line from top to bottom on the right side. The region left of the line is shaded. The z-axis below the line is labeled "z=1.91". The area of the shaded region is __ .(Round to four decimal places as needed.)

Why are Linear Regression models not generally used for Binary ( 0 / 1 ) targets? a. None of these are correct. b. It is possible that the result could be greater than 1 or less than 0 c. The Regression is not NP Complete and won't converge to a tangential maximum. d. The Regression is not NP Complete and won't converge to a tangential minimum

The following data represent the percent of owners of an electronic device that plan to purchase a replacement device within the next 12 months based on a survey of 1100 adults in a certain country.If there are 250 million individuals who own a cellphone, how many expect to replace their phone within the next 12months?

Need answer ASAP with work shown thank you QUESTION: Umbrella Inc. is considering the introduction of a new product that would have a unitselling price of$119. The total annual fixed costs are estimated to be$115,000and the unit variable costs are projected at$60. b) What volume is required to generate an income of$110,000? [3 marks]

Let = {( , , , + )|, } be a subset of ^4. We may assume that is a subspace of ^4. Find a subspace of ^4 such that = ^4.

Factor the equation. ( x + 3) 2 + 4( x + 3) + 3 = 0

Let's think about billions by looking at Bill Gates, president of Microsoft. One year, his personal wealth grew by $20 billion. Suppose he was working by the hour, like working at a fast food place, but with a higher wage. Suppose he saw a $100 bill at his feet, if his salary were docked for the time it would take him to pick it up, should he stop

A rose garden is formed by joining a rectangle and a semicircle, as shown below. The rectangle is 26 long and 21 wide. If the gardener wants to build a fence around the garden, how many feet of fence are required? (Use the value 3.14 for , and do not round your answer. Be sure to include the correct unit in your answer.)

Fill in the blanks with the correct form of the verb gustar. Modelo A m Example answerme gustanEnd example answer las ciencias. Question 1 with 1 blank A ti 1 of 1 mucho tus materias. Question 2 with 1 blank A m no 1 of 1 la residencia estudiantil. Question 3 with 1 blank A ti 1 of 1 la administracin de empresas? Question 4 with 1 blank A m 1 of 1

The two numbers produced by the primorial formula for 7 are 209 and 211 . Part 2 (b) Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. The number 211 is prime. Your answer is correct.B. Both the numbers are prime. C. Neither of the numbers is prime

1. A triangle has vertices at coordinates (1, 5), (2, 3), and (-3, 4). Two vertices of a second similar triangle, with sides parallel to the sides of the first, are located at the coordinates (3, 4) and (6, -2). In the spaces below, enter the coordinates of the third vertex of the second triangle. The coordinates of the third vertex are
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