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Julli [10]
3 years ago
11

Find the square of the following without actual multpliation . 43​

Mathematics
1 answer:
devlian [24]3 years ago
3 0
<h2>It's <u>1849</u></h2>

I'll explain how I found it without actual multiplication,

{40}^{2}  = 1600 \\  {3}^{2}  = 9 \\ 2 \times 40 \times 3 = 240 \\

So,

{43}^{2}  = 1600 + 240 + 9 \\  = 1849

Hope this will help....

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tangare [24]
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Carys is checking her tax bill for the last year .the tax rates were as follows: no tax on the first 11000 of earnings .earnings
faust18 [17]

Answer:

$7,440.

Step-by-step explanation:

We have been given the tax rates as follows:

$0-$11,000 = No tax.

$11,000-$43,000 = 20%.

$43,000-$150,000 = 40%.

Earnings over $150,000 = 45%.

Since last year Carys earned $45,600, so we will have to find the tax paid by her for 11,000-43,000 at rate of 20%, then the tax for amount over 43,000 at the rate of 40%.

\text{The amount of tax paid by Carys for 11000-43000}=\frac{20}{100}\times (43,000-11,000)  

\text{The amount of tax paid by Carys for 11000-43000}=0.20\times (32,000)

\text{The amount of tax paid by Carys for 11000-43000}=6400

\text{The amount of tax paid by Carys for the amount over 43000}=\frac{40}{100}\times (45,600-43,000)

\text{The amount of tax paid by Carys for the amount over 43000}=0.40\times (2600)

\text{The amount of tax paid by Carys for the amount over 43000}=1040

\text{The total amount of tax paid by Carys}=6400+1040

\text{The total amount of tax paid by Carys}=7440

Therefore, Carys paid an amount of $7,440 in tax.

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zhenek [66]

Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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