From 20 tickets marked with the first 20 numerals, one is drawn at random, what is the chance that it will be a multiple of 3 or of 7?

Q: f(x) = x – 3 Use A = R\ {3} = (-0, 3) U (3, 0) as domain. 1. Prove or disprove that f is 1-1. 2.…

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Q: 5. Age at death of 25 people as follows. 78 90 82 90 79 83 88 94 98 77 87 74 77 92 91 79 68 94 77 96…

A: The data set is: 78 90 82 90 79 83 88 94 98 77 87 74…

Q: dB B dt В The number of bacteria in a culture grows according to (1 where t is the 3500 number of…

A: The number of bacteria is ''B'' The given function is dBdt=B1-B3500 At equilibrium solution…

Q: 1. If the random variable X from a distribution with mean 50 and variance 10 and y = 0.8x + 15. Find…

A: It is an important part of statistics. It is widely used.

Q: For many years businesses have struggled with the rising cost of health care. But recently, the…

A: The question is about confidence interval.Given :Sample proportion of employers were likely to…

Q: 2590 = 204.5a + 9295.75b + 461052.9c 98780 = 9295.75a + 461052.9b + 24417796c

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Q: d. For the group of 45 patrons, find the probability that the average lunch cost is between $5.7665…

A: n=45,μ=5.74,σ=2.52

Q: Let + stand for the symmetric sum of sets, A+ B = (AU B) \ (A n B). Prove or disprove (A+ B)nC =…

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Q: Find the slope of the tangent line for the curve r= 2cos 30 at the point where 8 = a) 1 b) - V3 c)-6

A: Given curve r=2cos 3θ Point θ=π6 Differentiate r with respect to θ drdθ=ddθ2 cos 3θdrdθ=-6sinθ We…

Q: (15, 30, 32, 35, 49, 52, 57, 69) 5. Mean 442.38 6. Median 42 7. Modenone 8. First quartile (Q1)_31|…

A: (10)   The values of mean is, The value of sample standard deviation is, Note:  If answer is…

Q: True or false? If a pro basketball player misses 10 shots in a row, his chance of making a shot…

A: If a pro basketball player misses 10 shots in a row his chance of making a shot keeps going up until…

Q: 2. Suppose f : X →Y and g : Y → Z are functions, and g of :X → Z is injective. (a) Show that f is…

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Q: Let f(x) = a. f(1) = f(2)= f(4) = x if x ≥ 2 2 if x < 2 a. Find f(1), f(2), and f(4). b. Sketch the…

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Q: In the diagram below, AD = AE, BA || CE, CB || DA and m/DAE = . 56°. Find mZBAD. В A 56°

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Q: How is the product of 2 and-5 shown on a number line? -1D -9 -8 -1 0 1 2 3 5 @ 7 8 9 10 -10 -9 -2 -1…

A: The product of 2 and -5 means that, add the number -5 and -5. That is,  2×(-5)=(-5)+(-5)=-10

Q: 10 -3e -3e* sin(t-s) ds

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Q: Suppose that a population of bacteria grows at a rate after t days is given by p^'(t)= 1000/sqrt t…

A: Given a population of bacteria grows at a rate after t days is given by p'(t)=1000t for t≥1

Q: a) Set up but do not compute the integral for the volume of the solid below using cross-sectional…

A: We are given the figure, and we need to find the volume of that solid using a cross-sectional…

Q: Sarah and Kayla both solved the problem below. Who solved it correctly? Identify the mistake for the…

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Q: What is the class width of the following class intervals taken from a frequency distribution? 11 –…

A: It just subtraction of numbers.

Q: (a) Verify Green's theorem for the line integral f(x−y)dx + (x+y)dy, where C C is the unit square…

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Q: The Story of My Life: Write a situation in your life which can be represented by systems of linear…

A: Taxi service charges $9 to pick me up from my hotel and another $0.15 per mile for the trip. Without…

Q: 5. Let a and b be real numbers, not both zero. For (x1, Y1) and (x2, 42) in R², (x1, yı) ~ (x2, y2)…

A: Given that,  a and b are real numbers, not both zero. For By using the definition of equivalence…

Q: What is the product of any integer and-1? O The product is the opposite of the integer. O The…

A: The objective is to find the product of any integer and -1. Let take a an integer. Then a×-1=-a.

Q: (12 + 7i + 4) i=1

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Q: Plot and shade the following regions of the complex plane: (a) z-4-3i| ≤ 2 and Re z > 3. (b)…

A: The given inequation z-4-3i≤2 is the region interior of the circle with centre 4+3i and radius 2. In…

Q: (ANBUC) B

A: X and Y are two events in the same sample space. The De-Morgan’s law states the following XC∩YC=X∪YC

Q: Write a quaternion expression that represents the calculation required to rotate a point (6,7,8) by…

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Q: Let p2 q be primes greater or equal to 5. Show disprove that 24 divides p² – q². or

A: Consider the provided question,