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4 years ago

10

The area of Nathan's bedroom rug is 15 square feet.The longer side measures 5 feet. His living room rug is twice as long and twi

ce as wide as the bedroom rug.

1 answer:

Orlov [11]4 years ago

3 0

The one in his living room is 30 feet

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Find the range of the data. .

AlekseyPX

Answer: 4

Step-by-step explanation: Range is the difference between the highest and lowest number, so since 5 is the highest and 1 is the lowest you subtract 1 from 5 to get your answer: 4.

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2 years ago

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the perimeter of this quarter circle with radius, r = 32mm. Give your answer as an expression in terms of π.

djverab [1.8K]

Answer:

16π + 64

Step-by-step explanation:

So the whole circumference is 64π

A quarter is 16π

Then you just have to account for the two radii.

16π + 64

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What is the surface area?<br> 4 ft<br> 4 ft<br> 4 ft

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The surface area of what shape exactly?

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What number should be added to both sides of the equation to complete the square ? x2 + 12x = 11

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3 years ago

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Express 78 billion in scientific notation

ryzh [129]

Answer:

$7.8 * 10^{10}$ is scientific notation of 78 billion

Step-by-step explanation:

For scientific notation , follow the following notation:

$a * 10^{b}$ -------->(equation 1)

Let, $a^{'} = 78 billion$

$a^{'} = 78000000000$

$a^{'} = 78000000000.0$

In standard form

$a = 7.8000000000$

or

$a = 7.8$

As decimal point move 10 places from right to left, therefore

b = 10

Put the value of 'a' and 'b' in (equation 1)

$7.8 * 10^{10}$ is scientific notation of 78 billion

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4 years ago