Mathematics Questions and Answers July 07, 2020

Find the average value of f(x) = x times the square of 9 - x 2 over the interval [0,3]

Assume in an online course, that 2% of the female students are smokers and 2% of the male students are smokers. Are the two events (i.e Sex and Smoking status) dependent or independent? A) Dependent B) Independent Assume that 60% of the online students are female. Based on the previous question, what is the probability that a student is female and

1.To qualify for a police academy, candidates must score in the top 10% on an aptitude test. The test has a mean of 200 and a SD of 20. Find the lowest possible score to qualify. Assume the test scores are normally distributed. 2. For a medical study, a researcher wishes to select people in the middle 60% of the population based on BP. If the mean

Let =1,4,4and=2,7,3u=1,4,4andv=2,7,3. Use the the component form for vector answers with the less than and greater than symbols, e.g. <3,5> Find += Find - = Find =

Use the binomial series to find f(12) (0) term for the f(x) = V1 - x2. (Use decimal notation. Give your answer as whole or exact number.) f (12) (0) =

Responses/Submit: dep=2/62092/ a 5. [0/3 Points] DETAILS PREVIOUS ANSWERS SESSCALC2 4.4.014. Use Part 1 of the Fundamental Theorem of Calculus to find the derivative of the functi COS X y = (6 + 12)6 dv Jsin x y'= X 6. [0.48/3 Points] DETAILS PREVIOUS ANSWERS SESSCALC2 4.4.025

Assume a member is selected at random from the population represented by the graph. Find the probability that the member selected at random is from the shaded area of the graph. Assume the variable x is normally distributed. SAT Critical Reading Scores 200800475Score =502 =124 200

Solve it correctly please. I will vote accordingly. Suppose that you are given the following dataset with two observations and one variable: Xi yi 1 .02 1.02 2 .05 2.05 What is the solution of the Lasso estimator with lambda=5? Oa. o O b. 1.024 O c. 3.024 O d. 1 O e. -0.976

Supply the missing probability to create a valid distribution Data Probability 40 0.1 34 0.09 50 0.06 23 0.08 69 0.06 74 0. 1 63 59 0.06 88 0.06 P(63) = Submit

Solve the following equation for h. V Itr h

I need help on this question Find zw. Leave your answer in polar form. z=8 cos -+ i sin 6 w=3 cos -+ i sin 2TC O A. 24 cos 3 + i sin 3 O B. 24 cos - + i sin O c. 12 cos 7 + i sin O D. 12 cos 3 + i sin 3

Assume in an online course, that 2% of the female students are smokers and 2% of the male students are smokers. Are the two events (i.e Sex and Smoking status) dependent or independent? A) Dependent B) Independent Assume that 60% of the online students are female. Based on the previous question, what is the probability that a student is female and

Q. 1. In the data.xlsx file, there are three features, F1, F2, and F3 that affect the target, T. Build a model that can predict the probability of T = 1 given F1 = 1, F2 = 1, and F3 = 1. Write the value of the probability in the below cell. NOTE: you only need to write a number between 0 and 1. For example 0.73. F1 F2 F3 Target 1 0 1 1 0 0 0 0 1 1

Question

6. [10 points] Determine the Convergence or Divergence of the Series: (Vn + n )" 2n n=1 (3+ 2vn)

6. 10 points Determine the Convergence or Divergence of the Series

Show all work, and answer each question that is asked. Explanations should be given in complete sentences. All graphs should be drawn accurately on this sheet, and be fully labeled. 1. A large mixing tank currently contains 100 gallons of water into which 5 pounds of sugar have been mixed. A tap will open pouring 10 gallons per minute of water

(1 point) Let f(x) x8 6ex

Q. 1. In the data.xlsx file, there are three features, F1, F2, and F3 that affect the target, T. Build a model that can predict the probability of T = 1 given F1 = 1, F2 = 1, and F3 = 1. Write the value of the probability in the below cell. NOTE: you only need to write a number between 0 and 1. For example 0.73. F1 F2 F3 Target 1 0 1 1 0 0 0 0 1 1

Question

Solve it correctly please. I will vote accordingly. Suppose that you are given the following dataset with two observations and one variable: Xi yi 1 .02 1.02 2 .05 2.05 What is the solution of the Lasso estimator with lambda=5? Oa. o O b. 1.024 O c. 3.024 O d. 1 O e. -0.976

Find the particular solution of the following equation with y (2) = 1. ry de + (1 - x)dy = 0

Hello Can you please help mewith the following questions. Question 1: )* 2(3 + k) = 1) a) 18 b) 12 c) 14) d) 16 Question 2: Approximate the area under the parabola y = 1-x2 (Graph below) over [0, 1], using the partition P= {0, 0.2, 0.4, 0.6, 0.8, 1) at the subintervals Left endpoints. 2) a) 3.2 b) 3.4 c) 3.6 d) 3.8

Find the particular solution of the following equation with y (2) = 1. ry de + (1 - x)dy = 0

6. [10 points] Determine the Convergence or Divergence of the Series: (Vn + n )" 2n n=1 (3+ 2vn)

6. 10 points Determine the Convergence or Divergence of the Series

Show all work, and answer each question that is asked. Explanations should be given in complete sentences. All graphs should be drawn accurately on this sheet, and be fully labeled. 1. A large mixing tank currently contains 100 gallons of water into which 5 pounds of sugar have been mixed. A tap will open pouring 10 gallons per minute of water

Solve it correctly please. I will vote accordingly. Suppose that you are given the following dataset with two observations and one variable: Xi yi 1 .02 1.02 2 .05 2.05 What is the solution of the Lasso estimator with lambda=5? Oa. o O b. 1.024 O c. 3.024 O d. 1 O e. -0.976

Show all work, and answer each question that is asked. Explanations should be given in complete sentences. All graphs should be drawn accurately on this sheet, and be fully labeled. 1. A large mixing tank currently contains 100 gallons of water into which 5 pounds of sugar have been mixed. A tap will open pouring 10 gallons per minute of water

Q. 1. In the data.xlsx file, there are three features, F1, F2, and F3 that affect the target, T. Build a model that can predict the probability of T = 1 given F1 = 1, F2 = 1, and F3 = 1. Write the value of the probability in the below cell. NOTE: you only need to write a number between 0 and 1. For example 0.73. F1 F2 F3 Target 1 0 1 1 0 0 0 0 1 1

2. (10 points) A biased die is thrown thirty times and the number of sixes seen is eight. The die is thrown twelve times. (a) (6 points) Find the probability that a six will occur exactly twice (b) (4 points) Find the expected number of sixes

2. (10 points) A biased die is thrown thirty times and the number of sixes seen is eight. The die is thrown twelve times. (a) (6 points) Find the probability that a six will occur exactly twice (b) (4 points) Find the expected number of sixes

Hello Can you please help mewith the following questions. Question 1: )* 2(3 + k) = 1) a) 18 b) 12 c) 14) d) 16 Question 2: Approximate the area under the parabola y = 1-x2 (Graph below) over [0, 1], using the partition P= {0, 0.2, 0.4, 0.6, 0.8, 1) at the subintervals Left endpoints. 2) a) 3.2 b) 3.4 c) 3.6 d) 3.8

How do I graph this integral 3 DIMENSIONALLY? On Geobegra? How? N (x4 - 4x2 + 6) dx -2

(x4 4x2 6) dx

Hello Can you please help mewith the following questions. Question 1: )* 2(3 + k) = 1) a) 18 b) 12 c) 14) d) 16 Question 2: Approximate the area under the parabola y = 1-x2 (Graph below) over [0, 1], using the partition P= {0, 0.2, 0.4, 0.6, 0.8, 1) at the subintervals Left endpoints. 2) a) 3.2 b) 3.4 c) 3.6 d) 3.8

Sort the rows of mtcars by decreasing horsepower (hp), breaking ties by increasing displacement (disp). Show and run the R code to find the mileage (mpg) of the first sixcylinder (cyl) car in the sorted data.frame.

I need help on this question Find zw. Leave your answer in polar form. z=8 cos -+ i sin 6 w=3 cos -+ i sin 2TC O A. 24 cos 3 + i sin 3 O B. 24 cos - + i sin O c. 12 cos 7 + i sin O D. 12 cos 3 + i sin 3

I need help on this question Find zw. Leave your answer in polar form. z=8 cos -+ i sin 6 w=3 cos -+ i sin 2TC O A. 24 cos 3 + i sin 3 O B. 24 cos - + i sin O c. 12 cos 7 + i sin O D. 12 cos 3 + i sin 3

Sinclaire has some radioactive material in her lab. Four years ago, there were 84 grams of the material, but now there are only 81 grams. By what percent does the amount of radioactive material decrease each year? How many years from now will it be until Sinclaire only has half of the amount of material that she has now?

Someone sprays polygon graffiti on a stop sign. If they connect the vertices of the stop sign to form polygons, determine the total number of distinct polygons they can make. (They can make triangles, quadrilaterals, pentagons, hexagons, septagons and an octagon)

Sinclaire has some radioactive material in her lab. Four years ago, there were 84 grams of the material, but now there are only 81 grams. By what percent does the amount of radioactive material decrease each year? How many years from now will it be until Sinclaire only has half of the amount of material that she has now?

d. Using R, generate a pie chart for the relative frequency distribution

d. Using R, generate a pie chart for the relative frequency distribution.

d. Using R, generate a pie chart for the relative frequency distribution

d. Using R, generate a pie chart for the relative frequency distribution.

based on a random sample 100 penn state factuly members, 90% comfidence intervalfor true mean monthly mortgage payments.correct inerorattion of this interval is: -we are 90% confident that monthly mortgage payment of the sampled 100 penn state actually members is bw $1700 and $2500. -we are 90% confident that monthly mortgage payment of the

Michael is going for a walk. He walks 4.8 miles in 3 hours. What is his speed? E miles per hour X 5

Shipment Times. A survey of 36 selected recording companies showed these numbers of days that it took to receive a shipment from the day it was ordered. Days Frequency 1-3 6 4-6 8 7-9 10 10-12 7 13-15 0 16-18 5 Find each of these: a. Variance b. Standard Deviation c. Quartile d. Percentile

Michael is going for a walk. He walks 4.8 miles in 3 hours. What is his speed? E miles per hour X 5

Using proportions (not percentages), what is the area below a positive z-score of 0.91? Do not round. Include all digits through the ten-thousandths place (i.e., four decimal points).

Using proportions (not percentages), what is the area below a positive z-score of 0.91? Do not round. Include all digits through the ten-thousandths place (i.e., four decimal points).

A certain type of thread is manufactured with a mean tensile strength of 78.3kg and standard deviation of 5.6kg. Assuming that the strength of this type of thread is distributed approximately normal, find a) the probability that the mean strength of a random sample of 10 such thread falls between 77kg and 79kg. b) the value of x to the right of

Using proportions (not percentages), what is the area below a positive z-score of 0.91? Do not round. Include all digits through the ten-thousandths place (i.e., four decimal points).

geometric applications of the definite integral Find the area common to the circle r = 5 cos 6' and the Iimaccn r = 2 + cos 6

Sinclaire has some radioactive material in her lab. Four years ago, there were 84 grams of the material, but now there are only 81 grams. By what percent does the amount of radioactive material decrease each year? How many years from now will it be until Sinclaire only has half of the amount of material that she has now?

A certain type of thread is manufactured with a mean tensile strength of 78.3kg and standard deviation of 5.6kg. Assuming that the strength of this type of thread is distributed approximately normal, find a) the probability that the mean strength of a random sample of 10 such thread falls between 77kg and 79kg. b) the value of x to the right of

Using proportions (not percentages), what is the area below a positive z-score of 0.91? Do not round. Include all digits through the ten-thousandths place (i.e., four decimal points).

Find the dimensions of a 2 points rectangle with perimeter 750 meters so that the area of the rectangle is a maximum. *

A marketing company uses amount spent on advertising (in 1000's of dollars) to predict the amount of sales (in 1000's of dollars). They collect data resulting in the following summary information. 1. Calculate the pearson correlation coefficient. (round your answer to 2 decimal places).

Find the dimensions of a 2 points rectangle with perimeter 750 meters so that the area of the rectangle is a maximum. *

Shouldn't it be ( '4 ) ( 2 ) ( 2 ) ( " ) ? 3. A tyrannical tutor demands that a tutorial of 16 oppressed students split themselves into four groups of 4 to work at whiteboards. In how many ways can this be accomplished

The topic is differential equation and Q is taken from subtopic Formation of differential equation. Q. Form the differential equation by eliminating the constants using differentiation

Find the dimensions of a 2 points rectangle with perimeter 750 meters so that the area of the rectangle is a maximum. *

Let the Universal Set, S, have 86 elements. A and B are subsets of S. Set A contains 44 elements and Set B contains 23 elements. If Sets A and B have 2 elements in common, how many elements are in A but not in B? Answer = elements

Let the Universal Set, S, have 86 elements. A and B are subsets of S. Set A contains 44 elements and Set B contains 23 elements. If Sets A and B have 2 elements in common, how many elements are in A but not in B? Answer = elements

f ( x + h) - f(x) Use f '(x) = lim to find the derivative at x for the given function. h-0 h s(X) = 9x +7 s'(X) =

Problem 3. Determine the volume of the solid that is formed by rotating the curve = 1, 24 around to the line = 2. Sketch the outline of the curve, the solid, and a representative cross-section (or shell).

2. Find the local extreme points for f (x) = 3x3 - 2x2. Show your work. X (-00, ) f' ( x ) f (x)

Shouldn't it be ( '4 ) ( 2 ) ( 2 ) ( " ) ? 3. A tyrannical tutor demands that a tutorial of 16 oppressed students split themselves into four groups of 4 to work at whiteboards. In how many ways can this be accomplished

f ( x + h) - f(x) Use f '(x) = lim to find the derivative at x for the given function. h-0 h s(X) = 9x +7 s'(X) =

Let the Universal Set, S, have 86 elements. A and B are subsets of S. Set A contains 44 elements and Set B contains 23 elements. If Sets A and B have 2 elements in common, how many elements are in A but not in B? Answer = elements

A marketing company uses amount spent on advertising (in 1000's of dollars) to predict the amount of sales (in 1000's of dollars). They collect data resulting in the following summary information. 1. Calculate the pearson correlation coefficient. (round your answer to 2 decimal places).

An English teacher needs to pick 4 books to put on his reading list for the next school year. He has narrowed down his choices to 8 novels and 6 plays. Step2of2: How many different ways can he choose the books to put on the list if he wants to include at least one novel?

geometric applications of the definite integral Find the area common to the circle r = 5 cos 6' and the Iimaccn r = 2 + cos 6

An English teacher needs to pick 4 books to put on his reading list for the next school year. He has narrowed down his choices to 8 novels and 6 plays. Step2of2: How many different ways can he choose the books to put on the list if he wants to include at least one novel?

If 287.00 units are made and demand is 299.00. Your fixed expenses are $1257.0 . Your variable cost per is $2.25. Your Sales price is 5.65 . The variable expenses for the day is

A marketing company uses amount spent on advertising (in 1000's of dollars) to predict the amount of sales (in 1000's of dollars). They collect data resulting in the following summary information. 1. Calculate the pearson correlation coefficient. (round your answer to 2 decimal places).

The topic is differential equation and Q is taken from subtopic Formation of differential equation. Q. Form the differential equation by eliminating the constants using differentiation

A marketing company uses amount spent on advertising (in 1000's of dollars) to predict the amount of sales (in 1000's of dollars). They collect data resulting in the following summary information. 1. Calculate the pearson correlation coefficient. (round your answer to 2 decimal places).

The topic is differential equation and Q is taken from subtopic Formation of differential equation. Q. Form the differential equation by eliminating the constants using differentiation

f ( x + h) - f(x) Use f '(x) = lim to find the derivative at x for the given function. h-0 h s(X) = 9x +7 s'(X) =

If 287.00 units are made and demand is 299.00. Your fixed expenses are $1257.0 . Your variable cost per is $2.25. Your Sales price is 5.65 . The variable expenses for the day is

1. Los datos mostrados a continuaci6n representan el costo de la energfa elctrica durante julio de 2004 para una muestra aleatoria de 50 departamentos de una habitacin ce una gran ciudad. Datos brutos de los cargos de utilidades (S) 96 157 141 95 108 171 185 149 163 119 202 90 206 150 183 178 116 175 154 151 147 172 123 130 102 111 128 143 135 153

6. Assume that the system of equations ryu + uw = 4 yz tu - uv = y yw + xu + v+4 = 0 defines u, v and w as functions of r and y. Find ay and du

find the function f(x) and g(x) 5. For the following function, find functions f (x) and g (x) so the given function can be expressed as h(x) = f(g(x)). h(x) = (x+1)2 - 2(x+ 1)+3 f ( x) = g (x) =

Determine whether the following assertion is true or false; if it is true then prove it, and if it is false then give a counterexample: If a graph contains a cycle that includes all the edges, the cycle is an Euler cycle.

A test was given to a group of students. The grades and gender are summarized below A B C Total Male 20 14 8 42 Female 10 2 3 15 Total 30 16 11 57 If one student is chosen at random from those who took the test, Find the probability that the student got a "C' GIVEN they are male

Find the equation of the line that is parallel to the line y - x - 9 = 0 and passes through the point (-1, 3)

Find the equation of the line that is parallel to the line y - x - 9 = 0 and passes through the point (-1, 3)

integration: 5.5 Evaluate: 5 (x - 6)sin (x2 - 12x + 35) dx demonstrating the technique of substitution of variable fully. Leave answer in simplified exact form. (4 marks)

The volume V = - xr of a spherical balloon changes with the radius. At what rate (fts/ft) does the volume change with respect to the radius when r = 6 ft? . . ... The rate is fts /ft. (Type an exact answer in terms of .)

3. Identify whether these distributions are negatively skewed, positively skewed, or not skewed at all and explain why you describe them that way. a. This talented group of athletes scored very high on the vertical jump task. b. On this incredibly crummy test, everyone received the same score. c. On the most difficult spelling test of the year,

Q19 Is this a onetailed or a twotailed test A. onetailed B. twotailed

Q19 Is this a onetailed or a twotailed test A. onetailed B. twotailed

Consider the function Suppose that g(3) f) 10 and g (3) sin(nc)) 2. Find f (3).

A Determine the value of kso that ta -2Thatactors at 2kr +4x - 24 [a manel + D CE

The volume V = - xr of a spherical balloon changes with the radius. At what rate (fts/ft) does the volume change with respect to the radius when r = 6 ft? . . ... The rate is fts /ft. (Type an exact answer in terms of .)

3. Identify whether these distributions are negatively skewed, positively skewed, or not skewed at all and explain why you describe them that way. a. This talented group of athletes scored very high on the vertical jump task. b. On this incredibly crummy test, everyone received the same score. c. On the most difficult spelling test of the year,

A Determine the value of kso that ta -2Thatactors at 2kr +4x - 24 [a manel + D CE

Find the equation of the line that is parallel to the line y - x - 9 = 0 and passes through the point (-1, 3)

5, find y (1). Let y and suppose f(l) 6 and f (I)

I don't understand the parameters of a P-value because on one hand i have heard that you reject the null hypothesis if it less than your significance value but then i have also heard that it is if it smaller than the significance value. Can someone please explain it to me properly.

3. Identify whether these distributions are negatively skewed, positively skewed, or not skewed at all and explain why you describe them that way. a. This talented group of athletes scored very high on the vertical jump task. b. On this incredibly crummy test, everyone received the same score. c. On the most difficult spelling test of the year,

QUESTION 8 A fence parallel to one side of triangular field cuts a second side into two segments of 15 m and 21 m (see Figure below). The length of third side is 42 m. Find the length of the shorter segment "x" of the third side. 15.0 m 42.0 m 21.0 m 42.0 - X O A. 16.0 m O B. 17.5 m O C. 18.5 m O D. 20.0 m O E. 14.5 m