Which expression is meaningless? a. axbxc d. (a - b).c b. (axb).c e. a. (bx c) C. (a × b).c

Q: Use the union rule to answer. If n(A) = 6, n(B) = 11 and n(An B) = 5, what is n(A U B)? n(A U B) =

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Q: Simplify the following expression. You don't need to state restrictions. 2x² + x - 1 x2 - 25 x+5 2x2…

A: We use middle term splitting method to simplify numerator and denominator  and use identity  a2-b2 =…

Q: Evaluate the variable expression when a -3, b = 7, c = -1, and d = 3. b - d C - a

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Q: a + b Given a = -3 and b = 4 and c = -5, evaluate 1/5 -7/5 -1/5

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Q: Which of the following expressions is equivalent to 2i? Select all that apply. a (2i) (2)

A: Given: x23 Now check:   a)  x32=x132=x13×2=x23 b) x3=x123=x12×3=x32 c) x2x3=x2-3=x-1 d)…

Q: Which of the following is equivalent to the expression below? 12(y + 89) A. 12(89 y) B. (12 89) + y…

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Q: Find, if possible, (a) AB and (b) BA.

A: We know the order of a matrix is defined as  ---->  m x n where, m = number of rows…

Q: Which of the following is equivalent to the expression below? 12(y + 89) A. 12(89y) B. (12 89) + y…

A: We can make it easier for you

Q: Which example does not illustrate the commutative property? A. 6(x+4)= (x+4)6 B. 2+ (8y + 3x)=2+…

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Q: Find -9 + -3 + 3 +9 + 15...+51. a. 231 b. 384 C. 312 d. 385 е. 296

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Q: |? − 3| + 9 = 7

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Q: Which one of these expressions is not equivalent to the other two? Select the odd one out. A (В B a.…

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Q: Find, if possible, (a) AB and (b) BA.

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Q: Which of the following is equivalent to the expression a. b. c. h³ d. hs h³

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Q: Find, if possible, (a) AB and (b) BA.

A: (a) Consider the given matrices A and B. As the number of the rows is equal to the number of columns…

Q: Identify all of the coefficients in the following expression. 8x+y-13 O 8,1 О 8х, у, -13 О 8, 13 O…

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Q: Find (- 3)BA + (6)CD, if possible. 3 - 5 5 4 -5 1 - 3 D= -2 1 - 1 2 2 3 6 9 - 4 1 Select the correct…

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Q: Find a, b, c, and d so that a b + = -1 8-83-43 c d 6 -9

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Q: Which expression is equivalent to -16 - 9? A-16+9 OB. 16+(-9), C. 16+9 D. -16+ (-9)

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Q: A.B? B.A?

A: Given that,A=-9-411 and B=-6-829.   Obtain A·B as follows. A·B=-9-411-6-829      =-9-6-4-8+12+49…

Q: Select each expression that is equivalent to 8.5 + (2s + 0.5). (8.5 + 2s) + 0.5 (8.5 + 0.5) + 2s 9 +…

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Q: Find, if possible, (a) AB and (b) BA.

A: A is a 3x3 matrix and B is a 3x1 matrix So the product AB will be possible. Because the number of…

Q: Find the following expressions if a = (6r, 0, r), b = (6s, –s, 7s), and c = (2t, 10t, 5). a ·b = 1.…

A: We need to find dot product.

Q: Fined the abe roo2 07 -2-23i

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Q: Find the following expressions if a = (6r, 0, ½r), b = (4s, –s,8s), and c = 1. a. b = 2. a c= 3. b.…

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Q: Let A = 1 1 1`1 1 1 1], B= CD c=H₁ 1 1 Which of the following expressions is NOT defined?

A: we need to find which of the given expressions is not defined.

Q: Match expressions to the boxes

A: According to the question, r denotes the rate or speed of Hoppertunity. We know that Dortmund runs…

Q: Which expression is a Pactor of 5x2+13x-6 A. (x-6) B. (5X13). Co(x-3) D. (5x-2)

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