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lawyer [7]
4 years ago
13

How to we write 863.141 in expanded form

Mathematics
2 answers:
alexandr402 [8]4 years ago
6 0

The <em>correct answer</em> is:

800 + 60 + 3 + 0.1 +0.04 + 0.001.

Explanation:

To write a number in expanded form, we use place value. 8 is in the hundreds place; this makes its value 8(100)=800. 6 is in the tens place; this makes its value 6(10)=60. 3 is in the ones place; this makes its value 3(1)=3. 1 is in the tenths place; this makes its value 1(0.1)=0.1. 4 is in the hundredths place; this makes its value 4(0.01)=0.04. 1 is in the thousandths place; this makes its value 1(0.001)=0.001.

Together, the number is:

800 + 60 + 3 + 0.1 + 0.04 + 0.001.

kozerog [31]4 years ago
3 0
800,000
60,000
3,000
100
40
1

800,000+60,000+3,000+100+40+1
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Answer:

a

Step-by-step explanation:

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4 years ago
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Erik's disabled sailboat is floating at a stationary location 3 miles east and 3 miles north of Kingston. A ferry leaves Kingsto
irakobra [83]

Answer:

(a)6.82mph

(b)22 ft/sec

Step-by-step explanation:

Eric's Speed = 10 ft/sec

The Ferry's Speed = 15 miles per hour

<u>Conversion Unit</u>

  • 1 mile = 5280 feet
  • 1 hour = 3600 seconds

<u>Guide</u>

  • When converting from a smaller unit to a larger unit we divide
  • When converting from a larger unit to a smaller unit we multiply

(a)To convert Eric's Speed 10 ft/sec to miles per hour

\dfrac{10 \:ft}{seconds} =\dfrac{10 \div 5280 \:miles}{1 \div 3600\: hour} \\=6.82 miles \:per\: hour

(b)To convert the Ferry's Speed 15 mph to ft/sec

\dfrac{15 \:miles}{hour} =\dfrac{15 X 5280 \:foot}{1 X 3600\:seconds} \\=22 foot \:per\: seconds

3 0
3 years ago
Terry planted 12 pepper plants he planted twice as many green pepper plants is red pepper plants how many green pepper plants ar
shutvik [7]
Let x = green pepper plants
2x = red pepper plants

2x + x = 12
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8 0
3 years ago
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Please help! <br> Explain how to recognize a difference of two squares.
choli [55]

Answer:

WHEN THE SUM of two numbers multiplies their difference --

(a + b)(a − b)

-- then the product is the difference of their squares:

(a + b)(a − b) = a2 − b2

For, the like terms will cancel.

Symmetrically, the difference of two squares can be factored:

x2 − 25 = (x + 5)(x − 5)

x2 is the square of x. 25 is the square of 5.

The sum of two squares -- a2 + b2 -- cannot be factored. See Section 2.

Example 1. Multiply (x3 + 2)(x3 − 2).

Solution. Recognize the form:

(a + b)(a − b)

The product will be the difference of two squares:

(x3 + 2)(x3 − 2) = x6 − 4.

x6 is the square of x3. 4 is the square of 2.

Upon seeing the form (a + b)(a − b), the student should not do the FOIL method. The student should recognize immediately that the product will be a2 − b2.

That is skill in algebra.

And the order of factors never matters:

(a + b)(a − b) = (a − b)(a + b) = a2 − b2.

6 0
3 years ago
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0,5.<img src="https://tex.z-dn.net/?f=%5Csqrt%7B0%2C09%7D" id="TexFormula1" title="\sqrt{0,09}" alt="\sqrt{0,09}" align="absmidd
Komok [63]

Answer:

0.21

Step-by-step explanation:

The given expression is :

0.5\times \sqrt{0.09}-2\sqrt{0.05}+\sqrt \frac{1}{4}

We need to solve it.

We know that,

\sqrt{0.09}=0.3\ and\ \sqrt{0.05}=0.223

So,

0.5\times \sqrt{0.09}-2\sqrt{0.05}+\sqrt \frac{1}{4}=0.5\times 0.3-2\times 0.22+0.5\\\\=0.21

or

=\dfrac{21}{100}

So, the value of the given expression is equal to 0.21.

8 0
3 years ago
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