Question 1

Simplify y^5〖y.〗^3

Accepted Answer

y^8

Answer

2y^8

Answer

y^2

Answer

y^15

Question 2

Simplify 〖(b^4)〗^3.

Accepted Answer

b^12

Answer

〖3b〗^4

Answer

b^7

Answer

〖3b〗^7

Question 3

Simplify a^7/a^4 . Assume the denominator is not equal to zero

Accepted Answer

a^3

Answer

1

Answer

a^11

Answer

a^28

Question 4

A rectangle has a length of 25x^3and a width of 5x^2. Find the area in square units.

Accepted Answer

125x^5

Answer

25x^5

Answer

25x^6

Answer

125x^6

Question 5

Simplify (m^5 r^2)/(m^2 r^3 ). Assume the denominator is not equal to zero.

Accepted Answer

m^3/r

Answer

r/m^3

Answer

m^7 r^5

Answer

m^3r

Question 6

Express 0.000024 in scientific notation.

Accepted Answer

2.4 × 〖10〗^(-5)

Answer

2.4 × 〖10〗^(-4)

Answer

2.4 × 〖10〗^5

Answer

0.24 × 〖10〗^(-4)

Question 7

Evaluate (7 × 〖10〗^8)(2.4 × 〖10〗^(-4)).

Accepted Answer

1.68 × 〖10〗^5

Answer

1.68 × 〖10〗^13

Answer

2.92 × 〖10〗^4

Answer

1.68 × 〖10〗^4

Question 8

Evaluate (〖16)〗^(3/4).

Accepted Answer

8

Answer

4

Answer

2

Answer

32

Question 9

Solve 3^(x+2) = 81.

Accepted Answer

2

Answer

3

Answer

0

Answer

1

Question 10

Simplify (n^5)( n^2)( r^3)( r^4).

Accepted Answer

n^7 r^7

Answer

nr^14

Answer

nr^7

Answer

n^10 r^12

Question 11

. Simplify 〖(3w^2 r)〗^2 〖( - 2w^5 r^2)〗^3 .

Accepted Answer

–72w^19 r^8

Answer

36w^19 r^6

Answer

–36w^32 r^10

Answer

72w^12 r^7

Question 12

Simplify. Assume the denominator is not equal to zero.  (m^6 n^3)/(m^2 n^6 )

Accepted Answer

m^4/n^3

Answer

– m^4/n^3

Answer

– m^8/n^3

Answer

m^8/n^3

Question 13

(z^2 w^(-1) )^3/(z^3 w^2 )^2

Accepted Answer

1/w^7

Answer

z^12/w^7

Answer

1/w

Answer

w

Question 14

Solve 2^(3x + 10) = 128.

Accepted Answer

–1

Answer

2

Answer

1

Answer

3

Question 15

Express 0.000702 in scientific notation.

Accepted Answer

7.02 × 〖10〗^(-4)

Answer

〖7.02〗^(-4)

Answer

7.02 × 〖10〗^(-5)

Answer

7.02 × 〖10〗^(-3)

Question 16

Evaluate (6.08 × 〖10〗^7)/(3.8 × 〖10〗^(-2) ) .

Accepted Answer

1.6 × 〖10〗^9

Answer

2.3104 × 〖10〗^10

Answer

1.6 × 〖10〗^5

Answer

2.3104 × 〖10〗^6

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