Simplify

2w^7*9vu^-9*2v^-1w^-1u^8 use only positive exponents in the answer

5 answers

To simplify the expression, we can combine the exponents that have the same base.

2w^7*9vu^-9*2v^-1w^-1u^8
= 2 * 9 * v * u * w^7 * v^-1 * u^8 * v^-9 * w^-1
= 18vw^7u^8 * v^-1 * v^-9 * w^-1
= 18vw^7u^8 * v^(-1 - 9) * w^-1
= 18vw^7u^8 * v^-10 * w^-1
= 18v * v^-10 * w^7 * w^-1 * u^8
= 18v * v^-10 * w^(7 - 1) * u^8
= 18v * v^-10 * w^6 * u^8
= 18v * 1/v^10 * w^6 * u^8
= 18v^(1-10) * w^6 * u^8
= 18v^-9 * w^6 * u^8
= 18w^6 * u^8 / v^9

So the simplified expression is 18w^6 * u^8 / v^9.
A rectangle is placed around a semicircle. The length of the rectangle is 6yd. Find the area of the shaded region. Use the value 3.14 for pi
To find the area of the shaded region, we first need to find the area of the rectangle and the area of the semicircle.

The length of the rectangle is given as 6 yards. Let's assume the width of the rectangle is w yards.

The area of the rectangle is length * width:
Area of rectangle = 6 * w = 6w square yards

Now, the semicircle will be inscribed inside the rectangle. The diameter of the semicircle will be equal to the width of the rectangle, which is w yards.

The formula for the area of a semicircle is (π * r^2) / 2, where r is the radius of the semicircle. In this case, the radius is half of the diameter, so it is w / 2 yards.

The area of the semicircle is:
Area of semicircle = (π * (w/2)^2) / 2 = (π * w^2) / 8 square yards

To find the area of the shaded region, we subtract the area of the semicircle from the area of the rectangle:
Area of shaded region = Area of rectangle - Area of semicircle
= 6w - (π * w^2) / 8 square yards

So, the area of the shaded region is 6w - (π * w^2) / 8 square yards.
2w^7 * 9vu^-9 * 2v^-1 w^-1 u^8
= (2*9*2) u^(8-9) v^(1-1) w^(7-1)
= 36 u^-1 w^6
= 36 w^6/u
Actually, there seems to be a mistake in the simplification. Let's correct it:

2w^7 * 9vu^-9 * 2v^-1 w^-1 u^8
= 2 * 9 * 2 * w^7 * v * u^-9 * v^-1 * w^-1 * u^8
= 36w^7vu^(-9 + 8)v^(-1)w^(-1)
= 36w^7vu^(-1)v^(-1)w^(-1)
= 36w^7v^(-2)u^(-1)
= 36w^7/(v^2u)

So, the simplified expression is 36w^7/(v^2u).
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