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3 years ago

15

A family eats at a restaurant. The bill is $56.75. They are pleased with service so they leave 22% tip. What is their total afte

r including the tip?

1 answer:

nika2105 [10]3 years ago

7 0

$69.24 is the correct answer because 56.75 multiplied by 1.22 is 69.24

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melomori [17]

Answer: $4\sqrt{3}$

Step-by-step explanation:

For this exercise it is important to remember the following:

$i=\sqrt{-1} \\\\i^2=-1$

Given the following expression:

$-2i\sqrt{-12}$

You can notice that the radicand (the number inside the square root) is negative. Therefore, in order to simplify the expression, you need to follow these steps:

1. Replace $\sqrt{-1}$ with $i$ and simplify:

$(-2i)(i)\sqrt{12}=-2i^2\sqrt{12}=-2(-1)\sqrt{12}=2\sqrt{12}$

2. Descompose 12 into its prime factors:

$12=2*2*3=2^2*3$

3. Substitute into the expression:

$=2\sqrt{2^2*3}$

4. Since $\sqrt[n]{a^n}=a$ , you can simplify it:

$=(2)(2)\sqrt{3}=4\sqrt{3}$

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Ghella [55]

Answer:

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Step-by-step explanation:

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5682 divided by 4 is 1420 remainder 2 Hope that helped Have a good day! :-)

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