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Mathematics Questions and Answers July 09, 2021

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Consider the following regression analysis between sales ( y ) and social media advertising ( x in dollars). The regression equation , y y^ = 55,000 + 7,000 x, implies that an ______.

0/ 4 pts Suppose f(x) = 2x2 + 1x - 2, while a = - 2 and b - 3. Compute the following: A.) f(a) + f(b ) = B.) f(a) - f(b) = Question Help: Message instructor
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https://drive.google.com/file/d/1xj_mgiCGjS3o7sfbS_boOQHbIe45yld4/view?usp=sharing The survey data STATISTICSSTUDENTSSURVEYFORR contains the column NUMPRINTBK which is a variable that measures the number of print books students own. Use R to find mean and standard deviation of this data. ROUND ALL YOUR ANSWERS TO 2 DECIMAL PLACES. The mean of this

Question #4: You now work for the Department of Homeland Security (DHS), and are part of a team tasked to update the NIPP 2013: Partnering for Critical Infrastructure Security and Resilience policy document. The DHS team lead has asked everyone to review the NIPP 2013 document and provide at least three (3) recommendations regarding updates,
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Which advantage of laser cutting is not related to the area of the cut. Question 17 options: The laser beam is only 0.005" to 0.012" in width. The narrower the kerf, the faster the laser can cut. The narrower kerf results in less heat on the workpiece. There are no cutting tools to break or wear

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Provide three examples of the rectangular coordinate system, which is the basis for most consumer graphs.

The Petrified Forest was developed by a large ____________ and _______________

9. [-16.06 Points] DETAILS AUFEXC4 7.4.025. MY NOTES ASK YOUR TEACHER in the gure below. TPand W Intersect at O. NO - 36 an, MN - [5 cm. MP - 52 cm. and GO - 12 cm. Flnd the length of 5. [:]=m 'II n -\\'%U i' 10. [46.06 Points] TAILS AU FEKC4 9.1.020. MY NOTES ASK YOUR TEACHER Solve the equalinn. 84x=3[13x] \":1 11. [46.06 Points] DETAILS AUFEKC4
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2 2- 2x 4x - 5 A B C a. = 5 b. AB = Enter a list of integer or decimal numbers [more..] c. BC = d. AC = Submit
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Cengage Learning The weekly profit P for a widget producer is a function of the number n of widgets sold. The formula is as follows, where P is measured in thousands of dollars, n is measured in thousands of widgets, and the formula is valid up to a level of 9 thousand widgets sold. P = -3+2.3n - 0.2n2 (a) Make a graph of P versus n. 25 1 2 3 4 5
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application of two sample tests Hypothesis proportion female adults in maine 45-60 who smoke greater than proportion female adult 45-60 in MA who smoke. Independent Poll discovers 68 out of 140 female Maine residents aged 45-60 smoke- and 79 out of 162 MA female age 45 - 60 smoke. Propose a hypothesis test to compare these two populations.

Research has found an association between films that glorify high-speed chases and Group of answer choices an increase in tickets for running red lights. an increase in speeding tickets. a decrease in speeding tickets. a decrease in tickets for running red lights

Exponents and Roots Part 2 - Exponents & Roots Properties of Exponents am . an = amtn Ex: x5 . x2 = x7 am an = am-n Ex: 20 5 = x3 75 a = 1 a#0 amjn = amin Ex: (x5) 2 = x10 (" ) am 3 bm Ex: () 7 3 an =_ Ex: *-2 an 1 (ab)m = ambm Ex: (4xy2) 3 = 64x3 y6 1 T = an an Ex: = x2 Properties of Radicals Common Errors Jab = Va . Vb ( at b ) ? - a- + 67 trill
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Directions: Find the surface area of each figure. Round to the nearest hundredth when necessary. 1. 2. $14 mm 12 in 29 mm 8 in 17 in 3. 4. 8 ft 19 ft 3 cm 11 cm 6 cm 14 ft 12.1 ft 4.3 cm 5 ft 8 cm
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An initial population, p, of 1500 bacteria grows in number according to the equation P (t = 1500 (1 + 3t (+2+30) ) , where t is in hours. determine the rate at which the population is growing after 5 h
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For this problem, assume the box contains 5 red balls, 4 white balls, and 5 blue balls, and that we choose two balls at random from the box. What is the probability of neither being red given that neither is white?

Find the standard deviation of the data set in number 4

How does removing the hippopotamus affect the linear relationship between gestation and longevity? How does removing the hippopotamus affect the linear relationship between gestation and longevity? The linear association between the two variables becomes stronger because the hippopotamus point was an outlier and relatively far from the line of

Each of the thoracic vertebrae can be distinguished by what feature? The attachment of a pair of ribs The direct attachment to the sternum The presence of transverse foramina

A seller of a good with a common value, but that value is highly uncertain will prefer to use will prefer an english auction

HW #21 (3.6 & 3.7) 11. For each 45'-45"-90" triangle, find a and b. 450 12. For each 45'-45"-90" triangle, find a and b. a 8 V/2 b 13. For each 45*-45"-90" triangle, find a and b. 9V15 b 14. Find the perimeter of a square, as a simplified radical, if the length of its diagonal is 14 inches. 19. Find the missing side lengths. Leave your answers as
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working out please Noah made 12 kg of trail mix for his family's hiking trip. His family ate 8.600g of the trail mix on the hiking trip. How many grams of trail mix did Noah have left
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suppose theres a jar of coins. you know that the jar contains a total of 80 coins, that the only coins inside are quarters and nickels, and that the total amount of money in the jar is $12.80. How many quarters and how many nickels are in the jar

For the following dataset (Port entry into Detroit), construct the multiplicative seasonal model and predict the monthly truck flow for the year 2020 (All 12 months) i) We need the seasonal indices ii) We need the final forecasting model iii) We need the forecast for the next twelve months iv) What is the WMAPE for the model? (Note : Only MAD and
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The variable a is jointly proportional to the square of b and the square of c. If a=53 when b=5 and c=3, what is the value of a when b=7 and c=2? Round your answer to two decimal places if necessary.

Raul received a score of 73 on a history test for which the class mean was 70 with a standard deviation of 7. He received a score of 73 on a biology test for which the class mean was 70 with standard deviation 3. On which test did he do better relative to the rest of the class? biology test history test the same

Two investors, Brent and Lincoln, invest different amounts of money at the same time for an 8-year period. Brent invests $10 000 at 6% per year and his final amount is given by the formula A = 10000(1.06 )8. Lincoln is shrewder, and was able to invest only $8000 and end up with the same amount at the end. His final amount can be modelled using the

Graph the ordered-pair solutions of y = x 3 5 when x = 1, 0, 1, and 2

1.For the function z=f(x,y)=x^3-3xy-y^3 a.Find the equation of this function when yis fixed at the following values: -2,-1,0,1,2. Plot these equations on the same axes, carefully labelling each line. b.Find the equation of this function when xis fixed at the following values: -2,-1,0,1,2. Plot these equations on the same axes, (though different

Do the proof below. 24. Given: AM |\\ RZ , ZR = ZZ MA Prove: ZRAM = ZZMA R Z
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Segn lo expuesto por DeCharms, cul es la caracterstica de las personas que l denomina "marionetas

3. Solve for the intersection of these y=160x-(104x+7) and y= 104(x)+7.00 equations using substitution. (5points)

For the function f ( x )=2(3 ^1 /2 ( x1) )+4 determine the Y-intercept

Let V, E, and F be the number of vertices, number of edges, and number of faces of a cube. Consider the following Pascal-like triangle, but we define each entry in the triangle, other than those on the boundary of the triangle, is obtained by the difference of two entries in the row above. For example, h, = E - h- and h2 = h- - 1. Find the value
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A high school senior was applying to college and wondered how many applications she needed to send. Her counselor explained that with the excellent grade she received in Precalculus, she would probably be accepted to one school out of every four to which she applied. She immediately realized that for each application she would have to write 3

A baseball pitcher won 80% of the games he pitched. If he pitched 35 ballgames, how many games did he win?

This is D4 in terms of permutations. The permutations themselves can be correlated to flips and rotations of the square if you look closely. However the group table given is way too large to really understand the structure of algebra on D4. Now let r be a 90 counterclockwise rotation of the square (as given on p.80), and let s be the flip which

I need the exact distance and an appropriate distance rounded to at least 2 decimal places

Characteristics of case series studies include all of the following EXCEPT: They can be retrospective or prospective They usually involve several subjects They do not usually include a control group They involve the detailed reporting of one case over time

need help with this Let H be a subgroup of a group G such that ghg e H for all g e G and all h E H. Show that every left coset g H is the same as the right coset Hg
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Assume that the random variable X is normally distributed, with mean= 80 and standard deviation= 8. Compute the probability P(X < 90)

Determining whether variation in a process is due to natural or assignable causes is: the cost of quality control charting SEM statistical process control

please help solve this problem 15. Solve for the indicted segment.. ? 2 A C' B 10 O 4 O 12 O2 O
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Match the following. 1. 6+2=2+6 multiplicative inverse 2. If x = y, then y = x symmetric 3. 5 . 2 =2 . 5 property of zero 4. -. 2 =1 commutative - multiplication 2 5. 6(3 . 5) = (6 . 3)5 associative - multiplication 6. 8 . 1=8 identity - addition 7. 6+0 =6 identity - multiplication 8. If x = y and y = 7, then x = 7 commutative - addition 9. 8= 8
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What is a real life business example of the 'Monty Hall Dilemma'?

How much simple interest will you earn if you invest $2003 for 7 months in a GIC paying 2.23% p.a. simple interest

1. A new production manager of a manufacturing unit making high intensity lights, wants to improve the quality of the lights as measured by their lives. He therefore decides to estimate the life of the lights, in the existing system, and states that he would like to bring about changes in the manufacturing process unless the average life of

Moe Brink has a $900 balance in his checkbook. During the week, Moe wrote the following checks: rent, $350; telephone, $44; food, $160; and entertaining, $60. Moe also made a $1,200 deposit. What is Moe's new checkbook balance

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9 . Which of the following statements is true of the (3, 2)-cofactor of (1 mark) O It depends on c. It depends on b. O It depends on a O It does not depend on a, b, c.10. Fill in the blanks (1 mark) Compute the determinant of the following matrices. - N a. determinant= 1 2 2 b. 0 1 , determinant = 2 O Enter the correct answer below. Please enter a
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Use the standard normal table to find the z-score that corresponds to the cumulative area 0.3520 of the area is not in the table, use the entry closest to the area. If the area is halfway between two entries, use the z-score halfway between the corresponding z-scores. \f
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use properties of logarithms to condense the logarithmic expression \f
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Need help solving this problem to help me solve my other problems. The records of a casualty insurance company show that, in the past, its clients have had a mean of1.7auto accidents per day with a variance of0.0036. The actuaries of the company claim that the variance of the number of accidents per day is no longer equal to0.0036. Suppose that we

D) Convert miles per year to feet per hour 49 mi/yr using Exel

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A survey of 50 retail stores revealed that the average price of a microwave was $375, with a sample standard deviation of $20. Assuming the population is normally distributed, what is the 95% confidence interval to estimate the true cost of the microwave?

The histogram shows the ages of passengers riding in a tour van. Ages of Passengers 5 3 N 0 15 30 45 60 75 Age (years) 2020 StrongMind. Created using GeoGebra. How many passengers are under 45 years of age? Enter your answer as a number, like this: 42
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A video store manager observes that the number of videos sold seems to vary inversely as the price per video. If the store sells 570 videos per week when the price per video is $12.60, how many does he expect to sell if he raises the price to $14.90? Round your answer to the nearest integer if necessary.

25) Determine whether the following lengths can make a triangle. Justify your reasoning. a) 5, 7, 15 b) 0.65, 0.25, 0.9 c) 43, 24, 38
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If, in a quadratic equation,the values of a and c have opposite signs, the solutions of an equation are real numbers.

Ashley made five delivery for employer: delivery A=0.7, delivery B=5/8, delivery C=0.45, delivery D=6/10, delivery E=3/4, show delivery distance from shortest to the longest

8. Each figure below shows a circle on the coordinate Formulas: r = Vx2 + y2, sino =>, cos0 =x plane with an angle in standard position. For each figure, determine the sine of the angle and the cosine a. of the angle. sin 0 = cos 0 = ( - 4, -4V/3 b . (0. 24) sin 0 = cos 0 = C. Ae sin 0 = 14 -3 -2 -19 1 2 3 cos 0 =
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Answer h Safari File Edit View History Bookmarks Develop Window Help C Q g. Sun Mar 20 7:47 PM D mylab.pearson.com C + 88 in GTC4me y! A phlebotomist draws th... y' Contact a local hospital... y! A researcher wanted to... y! (d) What percentage of t.. C The Data To The Right R.. P Do Homework - 2.2 HW. 2022SP_MAT-120-FW1 Probability and Statistics
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Question Watch Video Show Examples Write the equation of the line that passes through the points (9, -7) and (-5, 3). Put your answer in fully simplified point-slope form, unless it is a vertical or horizontal line
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part (a 9. Box design If 1200 cm of material is available to make a box with a square base and an open top, find the largest W b possible volume of the box. 1
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graph the entire distribution of a binomial variable whose probability of success if 0.3 with a total number of attempts of 20. I'm lost

Write the equation for each crater near the human lunar outpost so the computer controlled spacecrafts know where they should NOT land. Shakeleton: Sverdrup: de Gerlache: Shoemaker Faustini de Gerlache A Shackleton 10 km 20 km 30 km Sverdrup 40 km 50 km
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23) In the gure, E is the perpendicular bisector of E]. Find x. 24) What are the possible lengths for the third side of a triangle given two sides are 12.5 and 24
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Use Bayes' Theorem to answer this one and the next one. You need to show the prior, the likelihood and the posterior. You also need to show how you calculated the denominator. The classifier predicts that the student got an C. What is the chance that he actually did not get a C? Actual A B C D Predicted A 12 3 2 4 B 4 6 3 3 C 1 2 9 2 D 2 2 7 8

The national standard for salinity (salt content) in drinking water is 500 parts per million.A government inspector tests the drinking water at 10 locations around a certain city and finds the following levels of salinity (in parts per million of course): 532, 560, 506, 452, 425, 531, 582, 376, 529, 629 (a)Make a 95% confidence interval for the

The local newspaper will typically endorse one candidate for the city's mayor. Historically, 70% of the people that won a mayoral election were endorsed by the newspaper, while 25% of the people who lost an election were endorsed by the newspaper.In the current election, a candidate's probability of winning is thought to be 0.6. The campaign

1. There are other logical fallacies not including Correlation implies causation, Ad hominem, Straw man, Appeal to consequence, Appeal to ignorance, Appeal to authority. What is another type of fallacy different from the 6 types discussed above and find an example of that type of fallacy. a) State the type of fallacy you looked up: b) State the
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Given h ( x ) =3 x +3 and f ( x ) =1/6 x +6, evaluate the composite function. h [ f (6)]

A $42,000 loan at 8.2% compounded semiannually is to be repaid by semiannual payments of $3,000 (except for a smaller final payment). (Do not round intermediate calculations and round your final answers to 2 decimal places.) a. What will be the principal component of the sixteenth payment? Principal tA b. What will be the interest portion of the
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In your french class, your final grade is based on four categories. The categories are tests, labs, assignments, and a final exam. Suppose you earned the following grades in each of the categories; 52% on tests, 100% on labs, 75% on assignments, and 79% on the final exam. If tests are worth 28%, labs are worth 11%, assignments are worth 14%, and

Calculate the surface area of the given shape \f
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Charter Oak Credit Union has a two year CD at 5% interest compounded monthly. You want to have $1100 saved at the end of the two years. (a) (1 point) How much do you have to deposit? (b) (2 points) Instead of a one-time deposit, you decide on monthly payments. What would they be? (c) (2 points) Which method would earn you more interest? Justify

P1. Pretty Lady Cosmetics Products has an average production process time of forty days. Finished goods are kept on hand for 15 days before they are sold. Accounts receivable are outstanding an average of thirty five days and the firm receives forty days of credit on its purchasers from suppliers. a. Estimate the average length of the firm's
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A teacher draws a Venn-Diagram on the board in chalk, but by the end of the lesson, she accidentally erases some of the chalk. Nonetheless, when new students walk into the class, they recognize the shapes as circles. Which Gestalt principle best explains this? Question 1 options: A) Continuity B) Figure-ground C) Closure D) Similarity

What are other statistical test , besides descriptive statistics, that could address research or clinical questions.

Which of the following should have the numbers written in figures, assuming none of the numbers begin a sentence? a. Room nine b. twenty percent c. two students d. three o'clock Question 2 options: A) a, c, d B) b and c C) a and b D) b and d

India is the second most populous country in the world, with a population of over 1 billion people. Although the government has offered various incentives for population control, some argue that the birth rate, especially in rural India, is still too high to be sustainable. A demographer assumes the following probability distribution for the

need help with this Let G be a group of order pq, where p and q are prime numbers. Show that every proper subgroup of G is cyclic
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1. Write in its simplest form. State restrictions. Consider the function: y = log (-31: 1) + 3. Determine the Domain, the Range and the equation of the Asymptote Domain: Range: Equation of the Asymptote Write leg2 (x3 - 9 leg; (:in:2 x 6) in its simplest form. State restrictions on the variable
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A company that specializes in language tutoring lists the following information concerning its English-speaking employees:23employees speak German;27speak French;31speak Spanish;45speak Spanish or French;38speak French or German;46speak German or Spanish; 8 speak Spanish, French, and German; and 7 speak English only. (Round your answer to one

Consider the nonlinear optimization model stated below. Min 2 X 2 18 X + 2 XY + Y 2 12 Y +51 s.t. X + 4 Y 7 (a)Find the minimum solution to this problem. ______at ( X , Y ) = ( , ) (b)If the right-hand side of the constraint is increased from7to8, how much do you expect the objective function to change?Based on the dual value on the constraint X +

Homework Submit qui point(s) possible The statement listed below is false. Let p represent the statement. K p: Five is between one and three. Express the symbolic statement ~p in words. What can be concluded about the resulting verbal statement? - . . In words, the symbolic statement ~p is O A. Five is not between one and three. O B. Five is
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CS. 20 Fin-x. x+13 21) The point of concurrency for the medians of a triangle is called the 22) The point of concurrency for the altitudes of a triangle is called the
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2. Given the linear program Max 3x + 4y s. t. - x +2y s8 x + 2y = 12 2x+y = 16 x, y 20 a. Write the problem in standard form. Identify slack/surplus variables. b. List all the extreme points. You must write down the values for x and y for each extreme point. c. Find the optimal solution by comparing the extreme points. d. What are the values of
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#1. If (5,b) is a point on the graphbof y=5x+9, what is b? #2. Determine the slope of the line containing the given points (-4,4);(4,-2) a. the slope is? b. graph #3. general form or slope-intercept x-intercrpt = 7; y-intercept = -6 the equation is? #4. general form or slope-interecept form of the equation line. Parallel to the line y=9x;

Hypothesis testing has its basis in this branch of statistics: a. Descriptive b. Contemporary c. Ambiguous d. Inferential

18. Which statement is true about the quadratic function represented by this graph? X O The graph of the function has a y-intercept at (0, -2). The graph of the function has an x-intercept at (0, -2). The function has a range of all real numbers. The function has a minimum value. Type here to search O
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Please help me solve this: The mean reading level of ninth graders in the state over the last 10 years was a Lexile reader measure of 900L.The developers of a new program claim that their techniques will raise the mean reading level of ninth graders by more than 75L.To assess the impact of their initiative, the developers were given permission to

Use the method for solving Bernoulli equations to solve the following differential equation. Question list I {1H + E : 3K2 2 dx x ll 0 Question 1 E) . Ignoring lost solutions, if any: the general solution is y = El. 0 Question 2 [Type an expression using x as the usn'able.) 0 Question 3 0 Question 4 0 Question 5 0 Question 6 0 Question T 0
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Discrete Math- Repeated Squaring 6. (6 points) Let A be an integer 0
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Fear Prompts teens to act impulsively can somebody help me answer these 4 questions COMMONEIT Text-Dependent Questions Directions: For the following questions, choose the best answer off respond in complete settlement A PART A: Which of the following best describes the central idea of the west? children. B. Teenagers are more likely to react
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Can someone please help me with these two questions , thanks ! 10. In the figure below, there is a unique projectivity that takes A. B. and C to A', B', and C", respectively. Using only a straightedge construct the image of X under the projectivity. X B C G 1 1. In the figure below, there is a line perspectivaty from the pencil at A to the pencil
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Assume that different groups of couples use a particular method of gender selection and each couple gives birth to one baby. This method is designed to increase the likelihood that each baby will be agirl, but assume that the method has noeffect, so the probability of a girl is 0.5. Assume that the groups consist of 36 couples. Complete parts(a)

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