Expressing Roots of Quadratic Equations
If (x + 2)(x - 4) = 0 indicates that x + 2 = 0 or x - 4 = 0, explain why (x + 2)(x - 4) = 6 does not mean x + 2 = 6 or x - 4 = 6. Could we solve the equation using x + 2 = 3 and x - 4 = 2 because (3)(2) = 6?
If (x + 2)(x - 4) = 0 indicates that x + 2 = 0 or x - 4 = 0, explain why (x + 2)(x - 4) = 6 does not mean x + 2 = 6 or x - 4 = 6. Could we solve the equation using x + 2 = 3 and x - 4 = 2 because (3)(2) = 6?
Let b = r_0, r_1, r_2, ... be the successive remainders in the Euclidean Algorithm applied to a and b. Show that every 2 steps reduces the remainder by at least one half. In other words, verify that r_{i+2} < (1/2)r_{i}, for every i = 0,1,2,.... Conclude that the Euclidean algorithm terminates in at most 2log_{2}(b) steps, where
Let m, n be in N, with m, n >= 1 and n odd. Let S_m = 1^n + 2^n + 3^n + ... + m^n. Prove that S_m is divisible by 1+2+...+m.
Where the solution is x = 104/25 please break this problem down to solution showing each stage of problem solving.
What is factoring by grouping? When factoring a trinomial, why is it necessary to write the trinomials in four terms?
I) f(x) = 2 - (square root x) for x>= 0 Given that |f(x)| = k has two distinct roots, determine the possible values of the constant k. ii) Solve for 0 < x < 90, the equation 3sin6xcosec2x = 4
Sam lives on a lot that he thought was a square, 157 feet by 157 feet. When he had it surveyed, he discovered that one side was actually 2 feet longer than he thought and the other was actually 2 feet shorter than he thought. How much less area does he have than he thought he had?
Please see the attached file for the fully formatted problems.
Please see the attached file for the fully formatted problems.
Please see the attached file for the fully formatted problems.
Using the index of a sequence as the domain and the value of the sequence as the range, is a sequence a function? Include the following in your answer: Which one of the basic functions (linear, quadratic, rational, or exponential) is related to the arithmetic sequence? Which one of the basic functions (linear, quadrati
1) Use the arithmetic sequence of numbers 1, 3, 5, 7, 9,...to find the following: a) What is d, the difference between any 2 terms? Answer: Show work in this space. b) Using the formula for the nth term of an arithmetic sequence, what is 101st term? Answer: Show work in this space. c) Using the formula for the
Let {x_n} be a sequence of positive numbers and suppose that he sequence {x_n+1/x_n} converges to L. Suppose L <1. Prove that the sequence {x_n} converges to 0.
Let a commutative ring R be generated by {a_1, a_2, ..., a_n} such that [a_1, a_2, ... , a_n] = {(a_1xr_1) + (a_2xr_2) + ... + (a_nxr_n) for r_1, ..., r_n in set of Reals}. I need to show this set is an ideal. Do I just need to show that it satisfies the commutative properties of the ideal?
N =(kQ1Q2)/S^2 See the attached file.
A 30 feet ladder is used by fire fighters is a safe only when it leans against a building at an angle of 60 degrees or less to the ground. What is the maximum height on a building the ladder can reach? Round to the nearest hundredth.
The village green is the shape of a square. Along the diagonal of the square is a path through the park. The path is 80 feet long. Find the area of the park. Round to the nearest tenth, if necessary.
1. If a person invests in a tax-sheltered annuity, the money invested, as well as the interest earned, is not subject to taxation until withdrawn from the account. Assume that a person invests $2000 each year in a tax-sheltered annuity at 10 percent interest compounded annually. Let An represent the amount at the end of n year
18. Graph this inequality 2y - 3x > 6 19. Graph this system of inequalities: { 8x + 5y ≥ 40 x + 2y ≤ 8 Find the coordinates of any vertices formed.
Let (f_k) be the Fibonacci sequence, show that: a) For every integer n>= 0, we have f_4(n+1) = 3f_4n+1 + 2f_4n b) Use a) in order to prove by induction that ∀n є N, 3 | f_4n
A pilot flies from Toledo to Chicago, which lies 280 mi directly west. Her plane can fly at 120 mi/hr. She ignores the wind and heads directly west. However, there is a 25 mi/hr wind blowing from the south. a) Write the equation that describes the effect of the wind b) Write the equation that describes the plane's contr
Using the index of a sequence as the domain and the value of the sequence as the range, is a sequence a function? Include the following in your answer: Which one of the basic functions (linear, quadratic, rational, or exponential) is related to the arithmetic sequence? Which one of the basic functions (linear, quadratic,
Let G be a nonabelian group and Z(G) be its center. Show that the factor group G/Z(G) is not a cyclic group. We know if G is abelian, Z(G)=G. But now if it is not abelian, can we simply say because G is not cyclic, then any factor group will not be cyclic either? or is there more to it?
Use Taylor's method with h = 0.05 to approximate the solution, and compare it with, actual values of y. See attached file for full problem description. (5.3) 6. Given the initial-value problem , , with exact solution : a. Use Taylor's method with h = 0.05 to approximate the solution, and compare it with, actual va
Let R=Z[X] and let M=(2,X) be the ideal generated by 2 and X considered as a submodule of R. Show that {2,X} is not a basis of M.
Determine the convergence or divergence of the sequence with the given nth term. If the sequence converges find its limit. Please see the attached file for the fully formatted problems.
Calculate the integral using contour integration. Complete explanation is required. integral(0-> ∞)logxdx/(1+x^2)^2 keywords: integration, integrates, integrals, integrating, double, triple, multiple
Find all points of intersection of the following planes, and describe what shape the intersection makes in 3 space 2z -10 =0 x +y +z -5 =0 -3x -3y =0
Show that the following two planes are parallel and find the minimum distance between them: x-2y+5z+4=0 -2x +4y -10z +9 =0
Find all real or imaginary solutions to each equation. w^2 = -225