Answer:
5 x 8 = 40 square cm
Step-by-step explanation:
Answer:
78.5%
Step-by-step explanation:
You take the area of the circle which is pie*r^2
and divide it by the area of the square
3x^2+7x
18x^2-12x
-12x^3-8x^2
6x^3-18x^2+6x
1.468*3.14 is around 4.6 so B)
And 65.97/4.6 is about 14.3 so C)
Answer:
Option 2) The expression is equal to 1 over 12 factors of r
Option 4) Multiplying the exponents will create an equivalent expression.
Step-by-step explanation:
We are given the following in the question:
![(r^{-4})^3](https://tex.z-dn.net/?f=%28r%5E%7B-4%7D%29%5E3)
Properties of exponent:
![(x^m)^n = x^{mn}\\\\x^{-a} = \dfrac{1}{x^a}](https://tex.z-dn.net/?f=%28x%5Em%29%5En%20%3D%20x%5E%7Bmn%7D%5C%5C%5C%5Cx%5E%7B-a%7D%20%3D%20%5Cdfrac%7B1%7D%7Bx%5Ea%7D)
Thus, we can simplify the given expression as:
![(r^{-4})^3\\=r^{-12}\\\\=\dfrac{1}{r^{12}}](https://tex.z-dn.net/?f=%28r%5E%7B-4%7D%29%5E3%5C%5C%3Dr%5E%7B-12%7D%5C%5C%5C%5C%3D%5Cdfrac%7B1%7D%7Br%5E%7B12%7D%7D)
Thus, the correct answer is:
Option 2) The expression is equal to 1 over 12 factors of r
Option 4) Multiplying the exponents will create an equivalent expression.