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Perform the indicated operation. Simplify if possible.
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# Question : Perform the indicated operation. Simplify if possible. : 2163468

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

Perform the indicated operation. Simplify if possible.

1) (x/15) + (7/15)

A) (x + 7/30)

B) (7x/30)

C) (x + 7/15)

D) (7x/15)

2) (x + 2/15) + (2/15)

A) (x + 4/15)

B) (x + 4/30)

C) (4x/30)

D) (4x/15)

3) (8/15 + x) + (x + 5/15 + x)

A) (x + 13/15 + x)

B) (13/30)

C) (x + 13/30 + x)

D) (13/15)

4) (9/m + 9) + (m/m + 9)

A) (9m/m + 9)

B) 1

C) 9

D) m

5) (4m/10n) + (2m/10n)

A) (5n/3m)

B) 3m

C) (3m/2n)

D) (3m/5n)

6) (5/16) - (15/16)

A) (5/8)

B) - (5/8)

C) (5/4)

D) - (5/4)

7) (8x/x - 8) - (64/x - 8)

A) 8x

B) 8

C) (8x - 64/x - 16)

D) (1/8)

8) (4a + 3b/ 2) - (4a - 3b/2)

A) 9b

B) 3b

C) 4a

D) 0

9) (3y2/y - 1) + (-3y/y - 1)

A) (3y/y - 1)

B) (3y(y + 1)/y - 1)

C) 3y

D) 0

10) (x2 - 7x/x - 2) + (10/x - 2)

A) x - 2

B) x - 5

C) x + 5

D) x + 2

11) (x/x2 + 3x - 88) - (8/x2 + 3x - 88)

A) (1/2(x + 11))

B) x + 11

C) (1/x + 11)

D) x - 8

12) (4x/x2 - 6x + 8) - (16/x2 - 6x + 8)

A) (4/x - 2)

B) (4(x - 4)/(x + 4)(x - 2))

C) (4/x - 4)

D) (4(x + 4)/(x - 4)(x - 2))

13) (10x + 9/x2 + 15x + 54) - (9x + 3/x2 + 15x + 54)

A) (x - 6/x2 + 15x + 54)

B) (1/x + 9)

C) (1/x2 + 15x + 54)

D) (1/x + 6)

Solve the problem.

14) A square shaped pasture has a side of length (4/x + 3) meters.

(4/x + 3) meters

Express the perimeter of the pasture as a rational expression.

A) (16/x + 12) meters

B) (16/x + 3) meters

C) (4/x + 12) meters

D) (16/x + 6) meters

15) Find the perimeter of the trapezoid.

(x + 5/x + 4) inches

(4/x + 4) inches (4/x + 4) inches

(x + 2/x + 4) inches

A) (x + 15/x + 4) inches

B) (2x + 15/x + 4) inches

C) (4x + 15/x + 4) inches

D) x + 11 inches

Rewrite the rational expression as an equivalent rational expression with the given denominator.

16) (8/7m) = ( /21m)

A) (7/21m)

B) (8/21m)

C) (3/21m)

D) (24/21m)

17) (4/2x) = ( /10x2)

A) (4x2/10x2)

B) (4/10x2)

C) (20x/10x2)

D) (20/10x2)

18) (x/x + 3) = ( /4x + 12)

A) (x/4x + 12)

B) (4/4x + 12)

C) (4x/4x + 12)

D) (3x/4x + 12)

19) (a/a + 5b) = ( /a2 - 25b2)

A) (5ab/a2 - 25b2)

B) (a2 - b2/a2 - 25b2)

C) (a/a2 - 25b2)

D) (a2 - 5ab/a2 - 25b2)

20) (13/x2 + 6x) = ( /x(x + 6)(x - 7))

A) (13(x + 6)/x(x + 6)(x - 7))

B) (13(x - 7)/x(x + 6)(x - 7))

C) (13/x(x + 6)(x - 7))

D) (13(x + 7)/x(x + 6)(x - 7))

21) (-19(x - 7)/x(x - 8)) = ( /x3 - 14x2 + 48x)

A) (-19(x - 7)(x - 6)/x3 - 14x2 + 48x)

B) (-19(x - 7)(x + 6)/x3 - 14x2 + 48x)

C) (-19(x - 6)/x3 - 14x2 + 48x)

D) ((x - 7)(x - 6)/x3 - 14x2 + 48x)

22) (12/10 - y) = ( /y - 10)

A) - (1/y - 10)

B) (12/y - 10)

C) - (12/y - 10)

D) - (12(y - 10)/y - 10)

23) (x + 12/6x2 + 49x + 95) = ( /x(6x + 19)(x + 8)(x + 5))

A) ((x + 12)(x + 8)/x(6x + 19)(x + 8)(x + 5))

B) (x(x + 12)/x(6x + 19)(x + 8)(x + 5))

C) (x(x + 12)(6x + 19)(x + 5)(x + 8)/x(6x + 19)(x + 8)(x + 5))

D) (x(x + 12)(x + 8)/x(6x + 19)(x + 8)(x + 5))

## Solution 5 (1 Ratings )

Solved
Mathematics 2 Years Ago 230 Views