3. Determine whether the following sets are open, closed, both, or neither. (a) (2,3) U{4} (b) [2,3] U {4} (c) Z (d) Q (e) {x e R: x < 0}

Q: 6r - 5r

A: We use exponent and multiplication.

Q: x(xo-5x- 12) <o

A:

Q: 4a(7a²-5a-7)+8a³+4a²+4a-15 For a = -3

A: To evalaute the value of given expression at the given value of a.

Q: I get the first part. How do you do the second part which says find x and 7

A:

Q: algebra

A: We will find the quotient.

Q: Simplfy

A: Given: A·B+C·D·C·(A·B+(C·D))

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A: The given figure is:

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A: Given,  ∫ 1a32+10a+25a12da

Q: 5Vx+8=20 how to find x=?

A:

Q: 2. (x-11)(5x-4)(x-3)

A:

Q: Need help

A: Given, k2+13k+42

Q: Perform the indicated operation.Simplify the result 4/ t+1 - (4t-7/ t2+7t+6 + 6/ t+6)

A: Given, 4/ t+1 - (4t-7/ t2+7t+6 + 6/ t+6) Opening the small bracket by multiplying the -1 4/t+1 - 4t…

Q: 3r 75

A:

Q: 5 (b): Evaluate:

A:

Q: x+7 dx. egral: | x² - x-2

A: To find the integration

Q: 2x3 +x+18 =0

A: The given function is of degree 3 so, it has three roots real or complex.   Here we have to find…

Q: I can't see the answer for b

A: From the given diagram:

Q: 2x + 5 =7

A: I hope the question is to solve for x from the provided algebraic expression.

Q: Simplify

A:

Q: The table shows the movement of a stock for 30 randomly selected trading days. "Up" means the stock…

A:

Q: Evaluate 4u2-4u + 3 S du (2u-1)v4u2-4u + 15 When du Lsec + C -sec' uJu?- a² a |

A:

Q: 2 +- X+7 x-7 x²-49 1

A:

Q: 6 15-xl dx Explain me! Please Evaluate.

A: We have to evaluate the definite integral:   ∫065-x dx

Q: SC₁+ Fuj³d₂ dn

A:

Q: の Write in terms of i. Simplify your answer as much as possible. -27 ロロ i

A: See the detailed solution below.

Q: x+2= 5 Find x

A:

Q: Second answer of C is not the correct answer

A: Given data values 323 326 331 339 350 353 356 359 360 364…

Q: Simplify: 3t2 + t3 O 3t5 O 3t6 O 3t2 + 3t3 o It is already sim

A:

Q: (2b+5)(b - 1)

A:

Q: congute pair √7-√3

A: Given expression, 7-3

Q: 2 2 p = 60 - 2x and p = x + 9x + 30

A:

Q: dx (V2x + 5 – V2x + 3)

A: First rationalize denominator then integrate

Q: t² + 4t +4 3t +6 t-2 t² – 5t +6

A: