Question

Factorize 16/49d2 +8/35df +1/25f2 pls help!-

Answer 1

Answer:

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Factorize:

• $\frac{16}{49}{d}^{2} +\frac{8}{35}df +\frac{1}{25}{f}^{2}$

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${a+b}^{2}={a}^{2}+2ab+{b}^{2}$

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$\frac{16}{49}{d}^{2} +\frac{8}{35}df +\frac{1}{25}{f}^{2}$

$=>{(\frac{4}{7}d)}^{2} +\frac{8}{35}df +{(\frac{1}{5}f})^{2}$

$=>{(\frac{4}{7}d)}^{2} +2×\frac{4}{7}d×\frac{1}{5}f +{(\frac{1}{5}f})^{2}$

$=>{(\frac{4}{7}d+\frac{1}{5}f)}^{2}$

Answer 2

Step-by-step explanation:

shoe store sells two types of shoes. Sale of model A is 35,846 pairs and model B is 38,461 pairs.

Estimate the difference of the sale of these two models.

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Answer

{\pink{\underline{\underline{Given}}}}

Given

Sale\ of\ Model\ A=35,846\ pairsSale of Model A=35,846 pairs

Sale\ of\ Model\ B=38,461\ pairsSale of Model B=38,461 pairs

{\pink{\underline{\underline{To\ find:}}}}

To find:

Estimate the difference of two models???

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Solution

Difference of two models=Model B-Model A

=38,461-35,846

=2,615

\begin{gathered}Estimated\ difference\\ =Estimate\ of\ 2,615\\=2,600\ pairs.\end{gathered}

Estimated difference

=Estimate of 2,615

=2,600 pairs.