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defon
3 years ago
7

Simplify the following square roots:

Mathematics
2 answers:
Gekata [30.6K]3 years ago
5 0

Answer:

Sqrt32 = 4\sqrt{2}, Sqrt28 = 2\sqrt{7}, Sqrt12 = 2\sqrt{3}

Step-by-step explanation:

Square root of 32:

First we find the prime factors of the number by making a factor tree.

32 splits into 8 and 4.

8 splits into 4 and 2

4 splits into 2 and 2

4 splits into 2 and 2

This becomes the square root of 2^{2} x 2^{2} x 2. It will simplify to:

4\sqrt{2}

Square root of 28:

The prime factors of this number are:

2, and 2

This simplifies to 2\sqrt{7}

Square root of 12:

The prime factors of this are:

3, 2, 2

This simplifies to:

2\sqrt{3}

iren [92.7K]3 years ago
4 0

Answer:

They can not be simplified because they are not perfect squares.

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3 years ago
Read 2 more answers
Use the distributive property to match equivalent expressions.
NeTakaya

Answer:

<h3>By using the distributive property the matched equivalent expressions are</h3><h3>1) -7(-4+x) =28-7x </h3><h3>2) -7(4-x) =-28+7x </h3><h3>3) 7(4+x) =28+7x </h3><h3>4) 7(-4-x) =-28-7x </h3>

Step-by-step explanation:

Given that by using the distributive property to match the given equivalent expressions.

1) Given expression is -7(-4+x)

<h3>By Distributive property a(b+c)=ab+ac</h3>

-7(-4+x) =(-7)(-4)+(-7)(x)

=28-7x

<h3>∴ -7(-4+x) =28-7x </h3>

2) Given expression is -7(4-x)

<h3>By Distributive property a(b+c)=ab+ac</h3>

-7(4-x) =(-7)(4)+(-7)(-x)

=-28+7x

<h3>∴ -7(4-x) =-28+7x </h3>

3) Given expression is 7(4+x)

<h3>By Distributive property a(b+c)=ab+ac</h3>

7(4+x) =(7)(4)+(7)(x)

=28+7x

<h3>∴ 7(4+x) =28+7x </h3>

4) Given expression is 7(-4-x)

<h3>By Distributive property a(b+c)=ab+ac</h3>

7(-4-x) =(7)(-4)+(7)(-x)

=-28-7x

<h3>∴ 7(-4-x) =-28-7x </h3>

Hence the matched equivalent expressions are

1) -7(-4+x) =28-7x

2) -7(4-x) =-28+7x

3) 7(4+x) =28+7x

4) 7(-4-x) =-28-7x

4 0
3 years ago
for a two week period, john and amanda had the following transactions occur to their cheking account: a deposit of $1,644.50;che
QveST [7]

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amount deposited = 1644.50

debit card transactions for $30, $5.59, $7.20, and $21.30.

We add all the debit card transactions

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checks written for $190, $45, and $7.50

Add all the check written amounts

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To find ending balance , we subtract the debit card transactions and check written from the deposit amount

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$1,337.91 is the ending balance for this time frame

8 0
3 years ago
A rectangle has a width of 8 centimeters and an area of 160 square centimeters a similar rectangle has an area of 250 square cen
Bezzdna [24]
I'm a bit confused and there is not a lot of information given to this.

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Any multiplication problem that equals 250 could work out for length x width.
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What expression is equivalent to 24 ⋅ 2–7?
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24 * 2 = 24 
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We must find an expression that equals 17. 

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6 0
3 years ago
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