2 years ago

Does addition in the whole numbers have the cancellation property.

1 answer:

7 0

Answer:

Although the cancellation law holds for addition, subtraction, multiplication and division of real and complex numbers (with the single exception of multiplication by zero and division of zero by another number), there are a number of algebraic structures where the cancellation law is not valid.

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A single microvillus is a rod-like structure that is 1.0 μm in height. it has a hemispherical top approximately 0.1 μm in diamet

andre [41]

The surface area of the cylinder that forms the "sides" of the microvillus rod is given by the area of the curved surface of a cylinder with diameter (d) = 0.1 μm and height (h) = 1.0 μm.

The curved surface area of a cylinder is given by 2πrh, where r = d / 2 = 0.1 / 2 = 0.05 μm.

Thus, the curved surface area is given by

$2(3.14)(0.05)(1.0) = 3.14 \times 10^{-11}\mu m^2$

Therefore, the surface area of the cylinder that forms the "sides" of the microvillus rod is $3.14 \times 10^{-11}\mu m^2$

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3 years ago

Simplify completely ( h^12 ) ( ------ ) ^3 ( h^4 )

Vinvika [58]

Answer:

h²⁴

Step-by-step explanation:

Emm... Do you mean (frac(h¹²)/(h⁴))³? If so, here is a solition: h¹²/h⁴=h⁸ and 8×3=24, so answer is h²⁴. Please use formula editor next time) Have a nice day))

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3 years ago

Not sure how to do this. need help

alexdok [17]

Answer:

a) 25/2 or 12.5

b) 78,125

c) 625

d) 30,517,578,125

6 0

2 years ago

Sami earns £4.50 per hour. How many hours does he need to work to earn £90?