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zhenek [66]
3 years ago
11

Simplify (7 + 1)2 – (11 + 32) - 4.

Mathematics
2 answers:
Dmitry [639]3 years ago
8 0

Answer:

16-43-4 or -31

Step-by-step explanation:

parentheses first.

(7+1)=8

(11+32)=43

then multipling

2(8)=16

then you just put it all together.

16-43-4

16-43= -27

-27-(-4)=-31.

Andrej [43]3 years ago
3 0

Step-by-step explanation:

(7 + 1) 2 - (11+ 32) - 4

(8)(2) - (43)(-4)

(16) - (-172)

16+172=188

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Answer:

Choices A, C, E

Step-by-step explanation:

The prices are proportional, so divide any price by the corresponding number of pounds to find the unit cost.

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The unit cost is $0.49 per lb.

Now we look in the choices to see which choice has a unit price of $0.49/lb.

We divide each price by its number of pounds to fund each unit cost. Every choice with a unit cost of $0.49/lb is an answer.

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3 years ago
Find square root of 144 by factorisation method​
Nady [450]

\huge \boxed{\mathbb{QUESTION} \downarrow}

  • Find square root of 144 by factorisation method.

\large \boxed{\mathbb{ANSWER\: WITH\: EXPLANATION} \downarrow}

We can find the square root of 144 using the factorisation method. In this method, you need to factorise 144 first. Then, you'll get your answer in the form of prime factors. In this case, it's ⇨ 2 × 2 × 2 × 2 × 3 × 3.

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To find the square root using factorisation, we need to group the same number in pairs. That is, 2 × 2 × 2 × 2 × 3 × 3 by grouping same numbers in pairs will become ⇨ (2, 2), (2, 2), (3, 3).

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Now, you should take only 1 of the number from these groups. So, (2, 2), (2, 2), (3, 3) will change to ⇨ 2 × 2 × 3.

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Finally, just multiply this set of numbers to find the square root of 144. 2 × 2 × 3 = 4 × 3 = \large\boxed{\underline{\bf \: 12}} ⇨ square root of 144.

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  • The square root of 144 is <em><u>1</u></em><em><u>2</u></em><em><u>.</u></em>

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3 years ago
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Step-by-step explanation:

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Tina is joining 3 sections of a quilt. Each section has 3 rows of 15 square pieces of fabric. How many squares will be in the co
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Answer:

There will be 135 squares in total. Changing the order of the factors wont change the result.

Step-by-step explanation:

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