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3 years ago

A jacket that cost a store $120 was marked up to $168. What percent was the mark up?

Mathematics

2 answers:

german3 years ago

8 0

Answer:

48%

Step-by-step explanation:

you have to subtract 168 and 120

inna [77]3 years ago

8 0

Answer:

140%

Step-by-step explanation:

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3 years ago

The number of bacteria in a petri dish is 50,000 (on day 0) if the amount is doubling each day by when will the number of bacter

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f(x) = 50000*2^x
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<u>Given:</u>

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f(x) = 50000*2^x

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3 years ago

Express the radical using the imaginary unit, i

Kipish [7]

Answer:

7i.

Step-by-step explanation:

Note : The given expression must be $\sqrt{-49}$ .

We have to write this radical value in the imaginary value.

The given value can be rewritten as

$\sqrt{-49}=\sqrt{49\times (-1)}$

$\sqrt{-49}=\sqrt{49}\times \sqrt{-1}$ $[\because \sqrt{ab}=\sqrt{a}\sqrt{b}]$

$\sqrt{-49}=7\times i$ $[\because \sqrt{-1}=i]$

$\sqrt{-49}=7i$

Therefore, the required expression is 7i.

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