# quantitative reasoning homework help

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• Q1: A human hair is75 umacross. How many inches is this?See Answer
• Q2: Perform the following mathematical operation and then report the answer. 1,052-218.3=See Answer
• Q3: The sum of the first ten terms of an arithmetic sequence is 120 and the sum of the first twenty terms is 840. Find the sum of the first thirtyterms.See Answer
• Q4:10. Construct a proof of the following theorem: (¬P V Q) → (Q → P).See Answer
• Q5:Applications 11: Exponential and Logarithmic Equations 1. Finance Sung Lee invests $5,000 at age 18. He hopes the investments will be worth$10,000 when he turns 25. If the interest is compounded continuously, approximately what rate of growth will he need to achieve his goal? Is that a reasonable expectation? Why or why not? 2. Sound The formula for measuring sound intensity in decibels D is defined by the 1D = 10log(+), where I is the intensity of the sound, in watts per -12 W square meter, and I = 10 is the lowest level of sound that the average person can hear. What is the intensity of a hair dryer that makes a sound of 90dB? equation mSee Answer
• Q6:On a bicycle, Kiara rides for 3 hours and is 29 miles from her house. After riding for 6 hours, she is 56 miles away. What is Kiara's average rate over the last 3 hours of her trip? miles per hourSee Answer
• Q7:Find the average rate of change of f(x) = 2x² - 6 on the interval [2, t]. Your answer will be an expression involving tSee Answer
• Q8:9. Construct a proof of the following argument: ¬(B&¬C),¬B → D,C → ¬E:.E → D.See Answer
• Q9:10. Construct a proof of the following theorem: (¬P V Q) → (Q → P).See Answer
• Q10:Assignment brief Paul and Jenny have a whole number of pounds. Paul says to Jenny: 'If you give me £3, I will have n times as much as you.' Jenny says to Paul: 'If you give me £n, I will have 3 times as much as you. You are given that all these statements are true and that n is a positive integer. 1. Determine an equation for the number of pounds that Jenny has in terms of n. 2. By using long division, or otherwise, on the result in (1) show that n ≤ 7. 3. Hence, by examine cases, determine the values of n for which there is a solution to this problem and in each of these cases the number of pounds Paul and Jenny have.See Answer
• Q11: If there are four Jars on the shelf when an order is placed, how much should the store order?See Answer
• Q12: If f is integrable on a, b), then \int_{a}^{b} f(x) d x=\lim _{n \rightarrow \infty} \sum_{i=1}^{n} f\left(x_{i}\right) \Delta x \text { where } \Delta x=\frac{b \cdot a}{n} \text { and } x_{i}=a+i \Delta x \text { Use this definition of the intergral to evaluate } \int_{0}^{1} x^{3}+2 x^{2} d x \text {. } First of all, we have \int_{0}^{1} x^{3}+2 x^{2} d x=\lim _{n \rightarrow \infty} \sum_{i=1}^{n} Evaluating the sum gives \int_{0}^{1} x^{3}+2 x^{2} d x=\lim _{n \rightarrow \infty} Evaluating the limit gives \int_{0}^{1} x^{3}+2 x^{2} d x=See Answer
• Q13: 1) The distribution of blood types for 100 Americaus is listed in the table. If one donor isselected at random, find the probability of sclecting a person with blood type AB+. 2) An automobile company has 4 Art (Ford, GM, Honda, and Mcrcedes) each of which can bemade with midsize or compact. There are 7 color (white, black, blue, green, yeliow, andsilver, red) patterns available. How many different shirts are available from this company? 1. Use the tree diagram 2. Use the fundamental Counting principle 3) Classify the statement as an example of classical probability, empirical probability, or subjective probability. a) The probability that a Herat-operation will be success is 70%. b) in selecting billiard balls, each colored ball has an equal chance of being chosen. 4) Which of the following cannot be a probability? A) -0. 43В) 0.0002 C) 85% D) 1 5) Classify the events as dependent or independent. Events A and B where P(A) = 0.3, P(B) 0.6, and P(A and B) = 0.18 6) Decide if the events A and B are mutually exclusive or not mutually exclusive. A die is selected at random. A: The set of odd number. B: The set of even number.See Answer
• Q14: Don bought a new tablet. If the tablet cost Don $550 and it cost the store$200, what was the store's markup on the tablet? See Answer
• Q15: 1) Find the probability of selecting three consecutive ace when three cards are drawn withoutreplacement from a standard deck of 52 playing cards. 2) A card is randomly selected from a standard deck of 52 playing cards. Find the probability that the card is black or king 3) A 10-sided die, numbered 1 to 10, is rolled Find the probability that the roll results in an odd number or greater than 6 4) The following table shows the number (in thousand) of earned degree by level and gender,conferred in Qatar last year. A person who carned a degree last year is selected. Find the probability of the selecting someone who a) Earned an Associate's degree b) Earned an Associate's degree, given that the person is male c) Earned a Master'sdegreeor a Bachelor's degree d) Earned doctorate and is a fernale e) Earned Associate and doctorate degreeSee Answer
• Q16: 2. (30 Points) Translate the following statements into an equation or inequality, thensolve them. Present the inequalities in graphical and interval notation as well. (a) Twice a number is six more than half that same number. (b) The sum of half a number and 3 is less than 7 more than that same number. (c) The distance between twice a number and 4 is less than 6.See Answer
• Q17: . During the month of April, the average inventory value for Wallpaper World was $92, 345, and the cost of goods sold was$196, 782. Find the stock turnover at cost. Round to the nearest tenth. See Answer
• Q18: 2. Compton and Sons is a local manufacturer of certain product that sells for $13.50 per unit. Variable cost per unit is$ 7.85 and fixed cost per period is $1220. Capacity per period is 1100 units. a)Calculate the total cost when the production is 100 units. Round to the nearest one. b)Calculate the break-even point in units. Round to the nearest one.See Answer • Q19: 12. For the three-part question that follows, provide your answer to each part in the given workspace. Identify each part with a coordinating response. Be sure to clearly label each part ofyour response as Part A, Part B, and Part C. Part A: Raul purchased a new laptop that was on sale for 15% off the original price. If Raul paid$865.29 for the laptop, what was the original price? Round answers the nearest cent. Part B: Raul had a coupon for 12% off, which he used to purchase a wireless keyboard and mouse combination at a total cost of \$40.99. Calculate the cost of the keyboard and mousebefore the coupon. Part C: The percent decrease formula is B -P1-R'where R is the base, P is the part, and R is the rate.See Answer
• Q20: 5)If the probabilities of each economic condition are 0.5, 0.1, 0.35, and 0.05,respectively, what is the expected value of perfect information?(5)See Answer

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