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Write the equation without multiplication signs

Question : Write the equation without multiplication signs : 2163596

Write the equation without multiplication signs.

26) V = (4 × π × r3/3)

A) V = (4/3) × πr3

B) V = 4πr3

C) V = (4πr3/3)

D) V = (πr12/3)

Simplify.

27) 5(x + 8)

A) 5x + 40

B) 5x + 13

C) 5x + 8

D) x + 40

28) (-7)(x + 1)

A) x - 7

B) -7x + 1

C) -7x - 7

D) -7x + 7

29) -5(-2x - 7)

A) 10x - 7

B) 10x - 35

C) x + 35

D) 10x + 35

30) (6x + 3)(3)

A) 18x + 3

B) 18x - 9

C) 18x + 9

D) x + 9

31) -3(3.5x + 5)

A) -10.5x - 15

B) -10.5x + 15

C) -10.5x + 5

D) x - 15

32) 2((1/3)x - (1/3)y + (1/5))

A) (5/12)x - (5/12)y + (2/5)

B) (3/2)x - (3/2)y + (5/2)

C) (2/3)x - (2/3)y + (2/5)

D) (2/3)x - (1/3)y + (1/5)

33) -8(3x + 5y - 6z)

A) 24x - 40y + 48z

B) -24x + 40y - 48z

C) -5x - 3y - 14z

D) -24x - 40y + 48z

34) 5(2.5x - 7y - 2.7z)

A) 7.5x - 2y + 2.3z

B) 12.5x + 35y + 13.5z

C) -12.5x - 35y - 13.5z

D) 12.5x - 35y - 13.5z

35) -2(8x - 3y - 5z - 2)

A) 16x + 6y - 10z + 4

B) -16x - 6y + 10z - 4

C) 6x - 5y - 7z - 4

D) -16x + 6y + 10z + 4

36) 4(-7x - 0.7y + 6z + 0.6)

A) -3x + 3.3y + 10z + 4.6

B) -28x - 2.8y + 24z + 2.4

C) 28x - 2.8y - 24z + 2.4

D) -28x + 2.8y + 24z - 2.4

37) (1/10)(2x + 5y + 11z + (1/2))

A) (1/5)x + (11/10)y + (1/2)z + (1/20)

B) (2x + 5y + 11z + 1 /20)

C) (1/5)x + (1/2)y + (11/10)z + (1/20)

D) (3/10)x + (3/5)y + (6/5)z + (1/10)

38) The surface area of a right circular cone with radius r and length l is A = πr(r + l). Write this formula without parentheses and without multiplication signs.

A) A = πr + πl

B) A = πr + πrl

C) A = πr2 + πrl

D) A = πr2 + l

39) The area of the vertical faces of a rectangular solid with height h and base edges l and b can be expressed as A = h × 2(l + b). Write this formula without parentheses and without multiplication signs.

A) A = 2hl + b

B) A = 2hl + 2hb

C) A = 2h + lb

D) A = 2hlb

40) The volume of a spherical shell with outer radius R and inner radius r is V = (4π/3)(R3- r3). Write this formula without parentheses and without multiplication signs.

A) V = 4πR3 - 4πr3

B) V = (4πR3 - 4πr3/3)

C) V = (4πR3/3) - r3

D) V = (4πR3r3/3)

41) 2(8x + 2) + 7(x + 4)

A) 23x + 6

B) 23x + 32

C) 30x + 32

D) 48x

42) 7(2x - 2) - 4(x - 4)

A) 10x - 30

B) 10x + 2

C) 10x - 6

D) -14x + 2

43) 3(3.9x + 4) + 4(x + 2.6)

A) 15.7x + 6.6

B) 23.7x + 22.4

C) 34.1x

D) 15.7x + 22.4

44) 2(4x + y) + 5(x + y)

A) 5x + 2y + 7

B) 13x + 7y

C) 18x + 7y

D) 13x + 2y

45) 2(4x - y) - 5(x - y)

A) 3x - 7y

B) 5x - 2y - 3

C) 3x + 3y

D) 3x - 2y

46) 3(2x + 3y) + 8(x + 2y)

A) 30x + 25y

B) 14x + 25y

C) 14x + 5y

D) 10x + 5y + 3

47) -8(2x - 4y) - 3(-x + 2y)

A) -13x + 26y

B) -13x + 2y

C) -12x + 27y

D) 8x + 26y

48) 2(5x + 1.5y) + 2.8(x + 3y)

A) 12.8x + 4.5y

B) 7.8x + 4.5y + 2

C) 15.6x + 11.4y

D) 12.8x + 11.4y

49) -6(8x - 1.7y) - 2.2(-x + 3y)

A) -45.8x - 1.3y

B) -44.8x + 4.6y

C) -45.8x + 3.6y

D) -34.8x + 3.6y

50) 2(x + 2y - z) - 2(2x - y + 3z)

A) 6x + 6y - 8z

B) -2x + 6y - 8z

C) -2x + 6y + 8z

D) -2x + 2y - 8z

Solution
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