If A COR is closed and cofinal in OR for every a e OR then so is (B|B e 0, A }. a

Q: A; B; Evaluate the expression without using a calculator. Expand and simplify. (2x + 3)² C; Solve…

A: Since you have asked multiple question, we will solve the first 3 question for you as per our guide…

Q: 1. Answer the following questions: (a) What is an even function? How to recognise the graph of an…

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Q: If f (x) =-+ sin x, 0< x < 2n, find f* and f". 2

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Q: (3) Let S be the equivalence relation on (0, 1, 2, 3} x {0, 1, 2} defined by (a, b)S(c, d) if and…

A: S=0,1,2,3×0,1,2=0,0;0,1;0,21.0;1,1;1,22.0;2,1;2,23.0;3,1;3,2

Q: Evaluate. S dx x² √9-x²

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Q: lifetime of the battery? What is the p-value? Choose the correct statement out of the following:…

A: We have given that  Population mean = 40 Sample mean = 40.9 Population standard deviation = 4 Sample…

Q: eed help answering the

A: Given,

Q: If y =√x + √y (a) (c) y + x y² - 2x 3 y³ + x 2y² - x + x + y+...∞, then is equal to dy dx 3 y³ – x…

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Q: 2. It is thought that a new process for producing a certain chemical may be cheaper than the…

A: Solution-: We want to find, (a) State null and alternative hypothesis (b) Compute test statistic=?…

Q: The roof at the end of the Rocky Point Pier in Port Moody is a right pyramid with a regular…

A: According to question,Length of base edge = 3.1 mandHeight of roof = 3.1 m

Q: The constraints and the objectives that are used to "reduce the amount of overtime for both machines…

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Q: Consider the function f(x)= x³ + 2x + 5. 1. Estimate the root to two significant digits using…

A: The bisection method uses the midpoint of an interval to perform the iterations to approximate the…

Q: The test scores on a 100-point test were recorded for 20 students. 94 66 60 86 95 53 86 82 76 97 64…

A: Let us plot the histogram first. Python code  for plotting the histogram, CODE:import…

Q: Which of the following binary operation is not closed in the set of real numbers? O a*b = Vab O…

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Q: Problem: The IQ scores for a sample of 24 students who are entering their first year of college are:…

A: Given data…

Q: g. Find the coefficient of variation.

A: sample…

Q: convex function

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Q: Use determinants to find out if the matrix is invertible. LO -3 9 0 - 15 - 6 2 St The determinant of…

A: Given:We are required to find:

Q: Calculate the integral of ƒ(x, y, z) = 2x² + 2y² + zº over the curve c(t) = (cos t, sin t, t) for 0…

A: To find line integral over the parametric curves

Q: Find the volume of the solid obtained by rotating the region bounded by the curves x = y2 - y3 and x…

A: The volume of the solid obtained by rotating the region bounded by the curves x=f(y) and x=g(y), and…

Q: 12. Let f (x) = x + find all the critical %3D points and use the second derivative test to prove if…

A: We have to find critical points and state whether they are maximum or minimum using second…

Q: A real number r is said to

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Q: Let P(x)=-(x+3)²(x + 2)²(x-1)² a. State the zeros of P.

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Q: 1) A college professor wants to determine the best way to present an important topic to his class.…

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Q: An analyst for a shopping district would like to determine the rent that should be charged for…

A: Solution: Given information: β1^=11.42  slope of the regression equation S.E(β1^)=1.5239  Standard…

Q: State and informally explain the Fundamental Theorem of Calculus

A: We have to state and informally explain the Fundamental Theorem of calculus.

Q: Let X~ Uniform(0, 1) and pe (0, 1) be a positive number. Derive the cumulative distribution function…

A: a) To find the cumulative distribution function (CDF) of Y=-1λlog(X), we need to calculate P(Y≤y)…

Q: Which set of congruence statements shows that APSC ARGM by the SAS Triangle Congruence Theorem? 20…

A: We have to find the triangle corresponding side angle

Q: Let , ² be the complex cube roots of unity. Let z₁, z₂, z, be complex numbers such that z₁+z₂+z3 = A…

A: We will use properties of cube root of unity  ω3=1  and  1 + ω + ω2 =0