$( {2}^{ - 3} \times {16}^{ \frac{1}{2} } ) \div ( {81}^{ \frac{3}{4} } \times {27}^{ - \frac{1}{3} } ) \\ \\ =( {2}^{ - 3} \times {2}^{ \frac{4 \times 1}{2} } ) \div ( {3}^{ \frac{4 \times 3}{4} } \times {3}^{ - \frac{3 \times 1}{3} } ) \\ \\=( {2}^{ - 3} \times {2}^{ 2} ) \div ( {3}^{ 3 } \times {3}^{ - 1 } ) \\ \\=( {2}^{ - 3 + 2} ) \div ( {3}^{ 3 - 1 } ) \\ \\ = {2}^{ - 1} \div {3}^{2} \\ \\ = \frac{1}{2} \times \frac{1}{9} \\ \\ = \frac{1}{18}$

5 0

3 years ago

Evaluate a^4 - 6b + 3b ÷ ac for a=-2, b=6, c=3<br> Show work please

viva [34]

Answer:

0.333

Step-by-step explanation:

2^4-6(6)+3(6)÷2×3

=16-36+18÷6

=-2÷6=0.333

6 0

3 years ago

Can you show me the work of (-9)exponent 4

ratelena [41]

Are you asking -9^4 or 4^-9

4 0

3 years ago

Devon wants to build a ramp with the dimensions shown. How much wood does he need?

Shkiper50 [21]

Answer:

680 in^2

Step-by-step explanation: (find the surface area)

2(8 x 15 x 1/2) = 120

8 x 14 = 112

17 x 14 = 238

15 x 14 = 210

4 0

3 years ago

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