Definition of negative exponent:
![a^{-n} = \dfrac{1}{a^n}](https://tex.z-dn.net/?f=%20a%5E%7B-n%7D%20%3D%20%5Cdfrac%7B1%7D%7Ba%5En%7D%20)
Following the definition, we have:
![\dfrac{1}{5^9} = 5^{-9}](https://tex.z-dn.net/?f=%5Cdfrac%7B1%7D%7B5%5E9%7D%20%3D%205%5E%7B-9%7D%20)
Answer: -9
area= b*h
82.* 16.6
area= 1361.2 since i dont know the number after the decimal in 82. that was the only answer i could give
Answer:
The markdown price is $32
Step-by-step explanation:
•Divide 40 by 100 to get what 1% equals
•Multiply that value (0.4) by 20
•Subtract that value from the original
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40/100=0.4
0.4×20=8
40-8=32
For full circle area is π * R² [here R = radius],
for a sector of circle with angle β, area will be = (β/2) * R², β is in radian,
here let β = 22.5° = (π * 22.5/180) = π/8 radian,
now [(π/8)/2] * R² = 9π, [π/16] * R² = 9π
R² = 9 * 16 = 144,
R = √144 = 12 m