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Mathematics Questions and Answers October 08, 2021

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The surface area of a cone is given by the formula S = ar2 + arl where / is called the slant height. We can use the Pythagorean Theorem to find the slant height (see above figure). Using the formula, find the slant height and surface area of the following cone. (figure is not to scale, use 3.14 for #) 11 ydi - L - 8 yd Slant Height = yd Surface
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Find p and q. Round your answers to three decimal places. n=157 and x=97 p= ____ q=____

True/False A unit factor is described as "undivided one thousandth shares in the common property

Assume the readings on thermometers are normally distributed with a mean of 0C and a standard deviation of 1.00C. Find the probability that a randomly selected thermometer reads between 2.25 and 1.61

uanto fa? Write out the answer to each equation. Modello You see: 1.000 / 2 = You write: cinquecento Question 1 with 1 blank 70.300 58 = 1 of 1 Question 2 with 1 blank 500.000 3 = 1 of 1 Question 3 with 1 blank 300.000 / 2 = 1 of 1 Question 4 with 1 blank 3.250 - 25 = 1 of 1 8

1. 24 = 3x Undo multiplication by 3 by 2. =-2 Undo division by 5 by 3. x+17 =20 Undo add 17 by 4. WX =6 Undo the square root by 5. (x+ 1) =2 Undo the cube root by them 6. X = 81 Undo raising x to the 4+ power by 7. (x- 9) =49 Undo squaring by then
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Determine apparent pKa1 by averaging those apparent pKa values below pH 9 that have a cB/cA ratio near 1. Use as many as you wish, but do not use ratios greater than 10 or less than 0.1. Compute a simple percent error between your value and the literature value(s)

Complete the square to rewrite y= x^2 -6x + 14 in vortex form. Then state whether the vertex is a maximum or minimum and give its coordinates

19) Research: Use the Reciprocity Theorem to determine the current in the 24kQ resistor I E 24 24kn 2 24KR ZO KR
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3. What is the next term of the sequence 5z, 8x, 11v, ... ? a. 14u c. 15s b. 14t 60,086 .6 d. 15r 00 046 4 Which of the following is an infinite sequence
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9. Identify the population, the sample, sampling method and parameter a) The high school Basketball coach at Riverside high school, divides the team into four groups, rst year, second year, third year and Senior players, he then chooses 10 players from each group (40 total) and records the time (in minutes) it takes them to run 3 miles. b) A
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I need help with geometric proofs. B Statement C Reason 4. A 6 points Given: AC=CD, ZB and ZE are right angles Prove: AABC=ADEC Now can you tell me how to prove that C is the midpoint of BE? (+2)
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Which of the following is TRUE? The head triples in length between birth and maturity. The arms double in length between birth and maturity. The legs double in length between birth and maturity. The lower parts of the body, such as the legs, must do more growing to reach adult size than the upper parts, such as the head

Julia, t tienes mucho talento musical. Sugiero que enter answer el piano durante el almuerzo. Quieres cantar tambin? 2. Samuel, t tienes una cmara buena, verdad? Quiero que enter answer fotos de todos los invitados durante la fiesta. 3. Es importante que nosotros enter answer a la una y media. Yo sola no puedo preparar toda la comida. Quin puede

Regression Statistics Multiple R 0.92 R Square 0.85 Adjusted R Square 0.84 Standard Error 0.01 Observations 24 ANOVA df SS MS F Significance F Regression 1 0.03 0.03 122.69 0.00 Residual 22 0.00 0.00 Total 23 0.03 Coefficients Standard Error t Stat P-value Lower 95% Upper 95% Lower 95.0% Upper 95.0% Intercept 0.00 0.00 0.37 0.72 -0.01 0.01 -0.01

Refer to the following ANOVA table and find the missing values. (Give your answers correct to two decimal places.) Source df SS MS F SF Factor 6 ?? ?? ?? Error ?? 44.4 ?? Total 24 162

The application of scientific knowledge to the interest of humans is called Blank______. Multiple choice question. standard deviation technology statistical testing economy

Digoxin 0.25 mg and Lasix 20 mg each once a day by mouth

#1: mZ GKH = G H (9x + 3) (13x - 1) K Your answer\f\f\f
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1. Using the slope formula, find the slope of the line through the given points. (1,9) and (6,4) What is the slope of the line? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. The slope of the line is (Type an integer or a simplified fraction.) B. The slope of the line is undefined. 2. Using
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Please help me with #4, parts a-c.I finished each part, but just want to verify that my answers are correct. Please check each of my answers for parts a, b, and c. Correct any mistakes I made please.Thanks! 4. Jamal bought an LED television for $2000. The value decreases exponentially by about 23% each year. y= alo a. Write an equation to model
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Find an equation that has solutions x - 2 and x - - 2 both of multiplicity 2. Write your answer in standard form. Equation: Preview
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Example : meditation Discussion 3: Design Independent Measures Study 9 unread replies.99 replies. In this module we went over independent measures and dependent measures studies. In the following discussion give an example of 1 (choose independent or repeated). State which one you're designing. This can be related to your community/personal
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Given that P(A or B) = 7/12, P(A) = 1/3, and P(A and B) = 1/4, find P(B).Show all work

Name: Q6: What is the longest possible wailing time [in hours) for a melt
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The main incubation time of fertilized eggs is 21 days. Suppose the incubation time or approximately normally distributed with a standard deviation of one day. Determine the 11 percentile for incubation times. Determine the incubation times that make up the middle 97%

I sent a picture since there are symbols I cannot type. Thank you so much! \f
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Hello, good morning everybody, I am french and I wanna to know if someone could give me the detailed fix of the question in red please? I was able to give the equation of the plane passing through points A, B, C but the question in red seems more complicated to me. Thank you very much. Exercice if E is a real affine space of dimension 3, endowed
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Consider a sample with data values of 4, 20, 6, 18, and 7. Compute the variance. (to 1 decimal) Compute the standard deviation. (to 2 decimals)
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Put the steps of the research process in order. Group of answer choices Identify a problem and ask a good question. Consider the evidence. Decide on the best answer to your question. Organize the evidence to support your answer. Complete the writing process

3. Use the principle of separation of variables to solve d yrlrz. Find the constant of integration for y(0) = 1
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the polynomial p(x)=2x 3 +bx 2 +cx+6 has a factor of x-1 and when divided by x-2 has a remainder of -12. what are the values of b and c?

5. A group of paramedics does not believe that the average number of calls in the morning, afternoon and night shifts are equal. They counted the number of calls over 7 days, and found the following: Morning Afternoon Night 7: 2.57 371 4.29 8 0.98 1L11 1.38 n; 7 7 7 Let Morning = group 1, Afternoon = group 2, and Night = group 3. (a) Calculate
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Select all the statements that describe gradual changes in dynamic levels. Multiple select question. Composers indicate a gradual increase in dynamic level with the term crescendo. Diminuendo means that the music should become gradually softer. The terms diminuendo and decrescendo are synonymous, and both indicate that the music should become

Clinical significance, which is whether the outcomes are meaningful in practice, is most closely related to which statistical term? Question 5Select one: A. Type I error B. p-value C. Effect size D. Degrees of freedom

The augmented matrix for the system of equations 2 x 1 + 2 x 2 + x 3 = 5 2x 1 +2x 2 +x 3 =5, x 1 + 3 x 2 + x 3 = 2 x 1 +3x 2 +x 3 =2, 3 x 1 + 4 x 2 + 5 x 3 = 1 3x 1 +4x 2 +5x 3 =1, is given by 1 point ( 2 2 1 1 3 1 3 4 5 ) 2 1 3 2 3 4 1 1 5 ( 2 x 1 2 x 2 x 3 5 x 1 3 x 2 x 3 2 3 x 1 4 x 2 5 x 3 1 ) 2x 1 x 1 3x 1 2x 2 3x 2 4x 2 x 3 x 3 5x 3 5 2 1 (

can you please help me? Suppose an angle measuring "1 Gip" subtends an arc that is 1/15th of the circumference of any circle centered at its vertex, and an angle measuring "1 Quip" subtends an arc that is 1/8th of the circumference of any circle centered at its vertex. a. Angle A has a measure of 11 Gips. i. Since an angle making a full rotation
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Suppose that,, and are independent, with [] = [] = [] = 2, and [ 2 ] = [ 2 ] = [ 2 ] = 5 . What is cov(, )? Suppose that X, Y, and Z are independent, with E [ X] = E [Y] = E [Z] = 2, and E [X2] = E [Y2] = E [Z2] = 5. Find cov (XY, XZ). (Enter a numerical answer.) COV (XY, XZ) =
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Explain why projected financial statement analysis is considered both a strategy-formulation and a strategy-implementation tool.

A medical researcher wants to determine if the average hospital stay of patients that undergo a certain procedure is greater than 8.2 days. The hypotheses for this scenario are as follows: Null Hypothesis: 8.2, Alternative Hypothesis: > 8.2. If the actual mean is 16.2 days and the null hypothesis is not rejected, did a type I, type II, or no error

If a straight line passes through the point of X =13 and Y=28, and also throught the point X=15 and Y=37, what is the slope of this line>. If your answer is a fraction, show in two decimal places

Question: If it's not too much trouble, work out the accompanying precisely showing every one of the steps! I need 100% score! 105. Think about the accompanying information and decide the 80th percentile. 15, 15, 33, 17, 30, 30, 20, 60, 45, 15 (A) 8 (B) 33 (C) 39 (D) 45 106. Think about the accompanying information and decide the 50th percentile.

Subject: Math:Geometry *** 1. It is the measuring instrument used to measure angles. * calculator O protractor thermometer ruler 2. What is the sum of measures of the three angles of a triangle? * O 200' O 90* O 180" 360 3. The measure of of a triangle is equal to the sum measure of its two remote interior angle. * interior angle O exterior angle
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Use the probability distribution to complete parts (a) and (b) below. The number of school-related extracurricular activities per student Activities 0 2 3 4 5 6 Probability 0.058 0.122 0.165 0.179 0.211 0.128 0.082 0.055 (a) Find the mean, variance, and standard deviation of the probability distribution The mean is (Round to one decimal place as
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4 7. (a) Write f(x) as partial fractions. [4] (x - 1)(x+3) (b) Find the x coordinate(s) of any turning points on the curve y =f(x) and identify their nature. [6]
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d. After 1 minute and 40 seconds, Don Quixote fell off the sail and straight down to the ground. How far did he fall
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6. A new car worth $45,000 is depreciating in value by $5000 per year. a. Find the linear model for the current value of the car, v, and the number of years, y, after it was purchased. b. Interpret the slope of the model. c. If the car is 3 years old, what does the model predict for its value? d. After how many years will the car be worth nothing
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2. Your group will receive several data points from the ball's path. Time is given in milliseconds and height is given in feet. a. Record data from before the video froze to make an estimate of the ball's height at 5 milliseconds. Time I I Height b. Record data from after the video froze to make an estimate of the hall's height at 5 milliseconds.
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Patient wait times were recorded for several months before and after an online patient registration system was installed in a clinic. The difference in wait times (before - after) by time of day and day of week resulted in a 95% confidence interval of [-5.3 minutes, 10.7 minutes]. What does this confidence interval mean? Question 4Select one: A.

The lower limit of a confidence interval at the 95% level of confidence for the population proportion if a sample of size 100 had 40 successes is: Select one: a.0.496. b.0.304 c.0.4806. d.0.4047

You are raising money for a charity and know that the average donation is $50 with a standard deviation of $60. Suppose you collect donations from 400 independent individuals. Use the Central Limit Theorem to construct X, a normal approximation to the total amount of money collected. (a) What is E(X) and X? (b) What is the CDF of X in terms of the

There is a strong connection between waiting lines models and probability distributions. For instance, the Poisson probability distribution is used to compute the probability that a number of customers arrive in a system in a specific time. Since the computation of such a probability requires the evaluation of an exponential, once again we must

can someone help me out on these Suppose that about 83% of graduating students attend their graduation. A group of 31 students is randomly chosen, and let X be the number of students who attended their graduation. a. What is the distribution of X? 3: ~ 4 H } Please show the following answers to 4 decimal places. b. What is the probability that
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The process of physically making movies is known as: Group of answer choices Distribution Continuity Production Exhibition

Consider a population of students and their final exam grades. Within this population a sample of 60 students and their final exam grades is considered. The average of the final exam grades for those 60 students is 82. Is this average a parameter or statistic?

Q2. -Consider the matrix A formed by a; ; = i + j for i
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1) The following data are test scores from two of my Algebra Classes: 162 221 218 206 138 135 224 204 135 210 207 154 155 135 120 210 176 162 I 225 214 210 206 162 135 135 221 161 128 161 126 l 125 135 138 128 121 128 133 130 135 141 | a) Make a steam and leaf plot b) Make a frequency table with 5 classes (we know a frequency table should have at
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integrate -infinity to -3 1/(x^2+x-2)dx if it converges

2. (30 pts) Ktel Records makes disco (3;), but it can't spin its magical music out of thin air. Its inputs are vapid lyrics (L) and good karaoke beats (K), and they come together in the Cobb- Douglas production function y : 4L1'3K1I'2. The factor price of lyrics is denoted w, and the factor price for karaoke-ness is denoted r. a) Separately
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Eight participants were measured on each of two tests, A and B. Participant A B 1 3 5 2 7 8 3 9 8 4 8 6 5 6 3 6 4 5 7 2 6 8 1 2 What proportion of the variance in Variable A is predictable from variation in Variable B?

Wes has $5900 to deposit in a certificate of deposit, but he is debating whether to leave it there for 2 years or for 3 years. Assume 5% compounded daily in both situations, and find the compound amount in each case. Click the icon to view the compound interest table for time deposit accounts
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Question 9 The graph depicts the standard normal distribution with mean 0 and standard deviation of 1. Find the indicated z score. 0.1292 0
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Solve the following problem. Problem 2(*): . What does it mean for a set of vectors to be orthonormal? 0 1/V2 O . Consider the set u1 = Q , 12 = B , U3 = 0 -3 . For which values o, 3 is 1/V2 this set orthonormal? . Let T = . Find projy(r), the orthogonal projection of a to V = span { u1, u2, us} (using the constants you found above). . Find the
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3. Break-even Analysis. A publisher for a promising new novel figures fixed costs (overhead, advances, promotion, copyediting, typesetting, and so on) at $87,000 and variable costs (printing, paper, binding, shipping) at $4.50 for each book produced. If the book is sold to distributors for $28 each, how many must be produced and sold for the
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Gwen, a sign maker, is paid $15.75 an hour to produce 100 signs per day. The standard time for producing one sign is 20 minutes. Given this information, what is the piece rate? $5.25 $1.27 $3.75 $6.67

This is a Pure Math question. (10 marks) Question 5 of Problem Set No. 5 was concerned with the set S C [0,1] of all real numbers with decimal expansions of the form, 00 die a: = Z 10\
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log b 8 Use log 8 ~ 2.079 and/or log | 7 ~ 1.946 to find log 67 log b8 (Round to the nearest thousandth.) log b 7
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You are a mathematics teacher in a senior phase classroom. In planning and teaching the topic 'functions' in your classroom, what would you do in order to play the following roles: 1.1. Knowledge engineer 1.2. Instruction specialist 1.3. Mentor 1.4. Administrator 1.5. Assessor

Let be a positive integer random variable with PMF of the form ()=122,=1,2,.... Once we see the numerical value of , we then draw a random variable whose (conditional) PMF is uniform on the set {1,2,...,2}. 1.1 Write down an expression for the joint PMF ,(,). For =1,2,... and =1,2,...,2: ,(,)=? 1.2 Find the marginal PMF () as a function of . For

how to find average rate of change of a function over intervals like 4=

How much would you need to deposit in an account now in order to have $ 266 in the account in 15 years? Assume the account earns 9 % interest compounded monthly. $__________ (Round to 2 decimal places if necessary)

A multiple-choice exam consists of four questions. Question 1 has two possible answers, question 2 has three possible answers, question 3 has four possible answers and question 4 has five possible answers. If a student guesses on each question, find the probability that the student scores one or more correct.

Move the points below to illustrate the following sets: U=1,3,4,5,7,8,9 Ac=1,4,7,8

use a Venn diagram (use whatever technology you wish) that displays the following information: * a switch-hitter bats both left- and right-handed (though not at the same time ;-) Grady bats left-handed Austin bats right-handed Cord is a switch-hitter Jack bats left-handed Asdrubal is a switch-hitter Travis bats left-handed Jason bats right-handed

(c)Suppose n =61and p =0.20.(For each answer, enter a number. Use 2 decimal places.) n p = n q = Can we approximate p by a normal distribution? Why? (Fill in the blank. There are four answer blanks. A blank is represented by _____.) _____, p _____ be approximated by a normal random variable because _____ _____. first blank Yes No second blank can

A. Create a new sentence by substituting each subject in parentheses. 1. Quando pagherai il conto? (voi, il turista, loro) 1a ______________________________________________________________________ 2b ______________________________________________________________________ 3c ______________________________________________________________________ 2.

7 9 7 7 Let A = -8 -7 -4 . Find the following minors and cofactors of A. 6 1 7 . M1,1 = -45 Cl1 = - 45 M3,1 = 85 C3,1 = 85 M1,2 = C1.2 =
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f) The area under one arch of the cycloid x = t - sint, y = 1 - cos(t)
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Find the equation (in terms of x) of the line through the points (-4,-4) and (3,0) y Question Help: D Video D Post to forum Submit
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if you have a confidence interval with a confidence of 90%, what is the probability of a Type I error ()? The central limit theorem guarantees that any sample proportion is approximately normally distributed. in the hemodialysis example in the class slides, a p-value of approximately 0.31 was calculated for the test of H0: p < 0.86 vs. HA: p >=

he number of potholes in any given 1-mile stretch of freeway pavement in Pennsylvania has a Normal distribution. This distribution has a mean of 60 and a standard deviation of 9. Using theEmpirical Rule, what is the approximate percentage of 1-mile long roadways with potholes numbering between 33 and 69? ________________%

Use partial fraction decomposition to rewrite the given fraction using A,B,C etc as the constants. (Do not need to find constants here) 2 =5 3, 2 - \" + 2.2,6 x x2 x+1 A B T+7 x? x @ Ax+ B Bx+C D +
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design a tender catering quote for sivuyile capital pty ltd in south africa. for 50 delegates and the details of the menu are tea, coffee. assorted scones and sandwiches. wrapped mint sweets. 500ml bottled water. 2 x starch. 2 x meats. 2 x vegetables. 2 x salads. assosrted canned fizzy drinks and 100% juice for 50 people

1) What is the probability of selecting a red candy? Plain Peanut C/U Actually I have folks do a 64 event consisting of (Other) Totals flipping 4 coins and counting the number of heads Red A B C shown. Orange D F Yellow G H 2) What is the probability of selecting a peanut (other) candy? Green K L Expected outcome: Blue M N O 0 heads 1/16 times
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Find the equation of a quadratic function from its graph \f
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10) Prove whether or not each set is a subspace of IR3: a. S1: The set of vectors y where y = x + 1 and z = y + 1 Z X b. S2: The set of vectors y where y = 2x and z = 3x N
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Find percent notation. 0.722 A) 0.722% B) 0.0722% C) 722% D) 72.2%

Let X,Y,Z be vector spaces and let Let X, Y, Z be vector spaces, and let T : X -> Y and T' : Y -> Z be linear transformations. Assume that To T : X - Z is an isomorphism. Prove that dim X + dim Z
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Professor Brown in the Math Department kept a list of the number of students visiting her ofce each week for two semesters {30 weeks). Construct a frequency table using 5 classes. In 2 other problems on this quiz. you will draw a histogram and describe the skew. 15 23 17 13 3 9 7 6 8 11 16 32 27 4 20 3 28 5 6 12 8 10 25 10 3 15 11 9 Remember your
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Hello! Would you please help to solve this question for me? It's difficult for me to wrap my mind around at the moment. Thank you! . 7/30 " Question 2 of 3, Step 4 of 10 Correct @ o A highway department executive claims that the number of fatal accidents which occur in her state does not vary from month to month. The results of a study of 178
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Catalogue no.82-624X ISSN 1925-6493 Health at a Glance Childhood cancer incidence and mortality in Canada by Lawrence Ellison and Teresa Janz Release date: September 22, 2015 How to obtain more information For information about this product or the wide range of services and data available from Statistics Canada, visit our website,
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1. Assume that the random variable X is the weight of a randomly chosen person from a population. Our goal is to estimate the mean and variance of X so we select 10 person randomly (from that population) and here are their weights in pounds: 150.7,135.3,180,145.2,115.4,232.4,175.3,183.2,155,142.1 Find the sample mean, sample variance and standard

30/40 minutes.Thanks 3. (a) Suppose T(x) is a linear transformation from 11?!2 to R2 that rst stretches a vector in the vertical direction by a factor of 5, and then rotates it 1r/ 2 radians counterclockwise. Find the standard matrix of T. (b) Suppose the vector u is orthogonal to v and w. Show that u is orthogonal to span{v, w}
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10.) Retirement Options. At age 25. you start work for a company and are offered two retirement options. Retirement Optionl: When you retire, you will receive a lump sum of $30,000 for each year of service. Retirement Option 2: When you start to work, the company deposits $15,000 into an account that pays a monthly interest rate of 1%, and
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The diagram shows a heating curve for a substance. A graph titled heating curve of Substance It shows heat added in joules on the x-axis, and temperature in degrees celsius on the y-axis on a scale of 0 to 100. The graph has a diagonal line from negative 5 degrees up to zero degrees labeled U. A horizontal line segment at zero degrees labeled V. A

which number in the following group of numbers represents the smallest amount 3 .4 7 .32 21 .115

Min:62 Q1: 74.5 M: 87 Q3: 99 Max: 100 Make a stem plot and a box and whisker plot for the data above.

I'm not sure how to work this problem out exactly and I also tried to answer it but it was worn my guess was the 15x2+10 May 14, 2:20:13 PM A textbook was dropped from the top of FHS which is 10 meters above the ground What is the equation that models this scenario? Answer: h(t) = 16x2 + 10 Submit Answer attempt 3 out of 10 / problem 1 out of may
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STAT 200 Week 3 Homework Problems 4.1.4 A project conducted by the Australian Federal Office of Road Safety asked people many questions about their cars.One question was the reason that a person chooses a given car, and that data is in table #4.1.4 ("Car preferences," 2013). Table #4.1.4: Reason for Choosing a Car Safety Reliability Cost

A microeconomist wants to determine how corporate sales are influenced by capital and wage spending by companies. She proceeds to randomly select 26 large corporations and record information in millions of dollars. The Microsoft Excel output below shows results of this multiple regression. SUMMARY OUTPUT Regression Statistics Multiple R 0.830 R
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