Mathematics

Hector Schmitt

12 July, 01:47

3. use the law of exponents to evaluate (1/x) ^ - n when x = 7 and n = 2

A. 1/49

B. 1/7

C. 7

D. 49

4. which expression is equivalent to (n^6) ^3

A. n^18

B. n^9

C. n^3

D. n^2

5. which is equivalent to (2x^2) ^3

A. 8x^6

B. 6^6

C. 8x^5

D. 6x^5

6. simplify the expression (-x) ^5 (4x) ^2

A. - 16x^7

B. - 16x^10

C. - 8x^7

D. 16x^10

13. the diameter of the sun is 864,000 miles. how can this value be expressed in scientific notation.

A. 8.64 x 10^5

B. 0.864 x 10^5

C. 86.4 x 10^3

D. 8.64 x 10^ - 5