3 years ago

In Math, what does justify your answer using complete sentences mean?

1 answer:

const2013 [10]3 years ago

5 0

'justify your answer using complete sentences' means re-write your answer in a complete sentence. In other words, say your answer in a full and clear sentence.

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Please help me fast and show all your work please thx

MrMuchimi

7x4x5= 140
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Question: which of the following is equal to -7?

evablogger [386]

Answer:

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Step-by-step explanation:

-2-5 = -7

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I WILL GIVE BRAINLIEST IF CORRECT !!!!

rosijanka [135]

Answer:

C. $3.2\times 10^{1}$

Step-by-step explanation:

$d_r$ = Diameter of a red blood cell = $0.0008\ \text{cm}$

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Ratio of the diameter of the red blood cell to the diameter of the whooping cough virus

$\dfrac{d_r}{d_w}=\dfrac{0.0008}{2.5\times 10^{-5}}=\dfrac{0.0008}{25\times 10^{-6}}=\dfrac{0.0008\times 10^6}{25}\\\Rightarrow \dfrac{d_r}{d_w}=\dfrac{800}{25}\\\Rightarrow \dfrac{d_r}{d_w}=32=3.2\times 10^{1}$

The required ratio is $3.2\times 10^{1}$ .

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