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3 years ago

15

How does the rule for multiplying radicals relate to the symmetry property

1 answer:

vitfil [10]3 years ago

6 0

When multiplying radicals, the index of the radicals must be equal. This can be done by making of several mathematical properties one of which is the symmetry property. Since we can say that a number is equal to the product of its factors, then the product of the factors can also replace the number.

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A 12 foot long playground is marked off into 1/5 foot long sections for a game. How many sections are there?

gizmo_the_mogwai [7]

60, I got my answer by dividing 12/ 1/5 to get the answer

7 0

4 years ago

A cylindrical roller 2.5 m in length, 1.5 m in radius when rolled on a road was found to cover the area of 16500 m2 . How many r

eduard

Answer:

701 revolutions

Step-by-step explanation:

Given: Length= 2.5 m

Radius= 1.5 m

Area covered by roller= 16500 m²

Now, finding the Lateral surface area of cylinder to know area covered by roller in one revolution of cylindrical roller.

Remember; Lateral surface area of an object is the measurement of the area of all sides excluding area of base and its top.

Formula; Lateral surface area of cylinder= $2\pi rh$

Considering, π= 3.14

⇒ lateral surface area of cylinder= $2\times 3.14\times 1.5\times 2.5$

⇒ lateral surface area of cylinder= $23.55 \ m^{2}$

∴ Area covered by cylindrical roller in one revolution is 23.55 m²

Next finding total number of revolution to cover 16500 m² area.

Total number of revolution= $\frac{16500}{23.55} = 700.6369 \approx 701$

Hence, Cyindrical roller make 701 revolution to cover 16500 m² area.

8 0

3 years ago

Can u guys help me on number 4 and 5

Mekhanik [1.2K]

I hope this helps you! Feel free to ask ant questions

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3 years ago

How much longer is 68.7 than 58.2 plz work it out

melomori [17]

It's simple.
you just subtract the bigger number from the smaller number.
68.7-58.2
let me know if you need further help

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3 years ago

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Pls help as soon as possible

Anvisha [2.4K]

1 -2 pretty sure thats the one

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