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2 years ago

I need help (No link please)

Mathematics

1 answer:

umka21 [38]2 years ago

6 0

Answer:

the formula for finding the perimeter of a rectangle is P=2L+2W

an example of how to find the perimeter is

Explanation:

For a rectangle, its perimeter is the sum of all for sides.

The rectangle has a perimeter of 54. Find the lengths of the unknown side. That is, find S.

54=20+20+S+S

Simplify

54=40+2S

Solve for S

14=2S

S=7

Step-by-step explanation:

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If the areas of two similar decagons are 625 ft^2 and 100 ft^2, what is the ratio of the perimeters of the decagons? tf is a dec

const2013 [10]

$\text{Answer: }\frac{\text{ Perimeter of first decagon}}{\text{ Perimeter of second decagon}}=\frac{5}{2}$

Step-by-step explanation:

Since we have given that

Area of two similar decagons are 625 ft² and 100 ft² ,

As we know the relation of area of similar figures, i.e.

$\frac{\text{ Area of first decagon}}{\text{ area of second decagon}}=\frac{625}{100}=\frac{a^2}{b^2}$

Now, we also know that ,

$\frac{\text{ Perimeter of first decagon}}{\text{ Perimeter of second decagon}}=\frac{a}{b}=\frac{\sqrt{625}}{\sqrt{100}}=\frac{25}{10}=\frac{5}{2}$

Hence,

$\frac{\text{ Perimeter of first decagon}}{\text{ Perimeter of second decagon}}=\frac{5}{2}$

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3 years ago

The sales of digital cameras (in millions of units) in year t is given by the function

erma4kov [3.2K]

Digital Cameras Sold more

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3 years ago

Read 2 more answers

76% of ___ is 377.44

Kipish [7]

Answer:

496.631579

Step-by-step explanation:

Make a proportion

We know that a 377.44 over a number must equal 76%

377.44/x=76/100

Cross multiply

76x=37,744

Divide by 76 on both sides

x=496.631579

So, 76% of 496.631579 is 377.44

Hope this helps!

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4 years ago

there are 120 people attending a wedding reception. There are 16 tables. Some are round and some are square. the round table sea

alexira [117]

So I won't tell you the answer but I will give you a clue. do 120 times 16 - 8 + 6

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4 years ago

A sphere has a radius of 6 meters. A second sphere has a radius of 3 meters. What is the difference of the volumes of the sphere

Andrew [12]

Since we are dealing with VOLUME, when you increase an amount, we CUBE the difference. 2^3 = 8
The sphere that has 2 times the radius has 8 times the volume.

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4 years ago