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Gekata [30.6K]
2 years ago
10

Express into the complete surds.​

Mathematics
1 answer:
kvv77 [185]2 years ago
3 0

\sqrt{ {a}^{2}  -  {b}^{2} }

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What is the better buy?
White raven [17]

Answer: Option B is the cheaper deal (the 12 batteries for $14.76)

===========================================================

Explanation:

For the first deal we can say

3 batteries = 4.80 dollars

3/3 batteries = 4.80/3 dollars .... divide both sides by 3

1 battery = 1.60 dollars

The unit price for the first deal is $1.60 per battery.

----------------------------------

For the second deal we could say

12 batteries = 14.76 dollars

12/12 batteries = 14.76/12 dollars .... divide both sides by 12

1 battery = 1.23 dollars

The unit price for the first deal is $1.23 per battery.

This is the cheaper deal.

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So in short, you're dividing the total cost over the number of items to get the unit price.

4 0
3 years ago
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The tv costs $850 you pay 20% , how much is left to pay
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The graph shows the savings in Andre’s bank account.
Vadim26 [7]

Answer:

The slope is 1/5

Andre is saving 4 dollars per week.

Step-by-step explanation:

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2 years ago
PLEASE I NEED THIS TODAY!!!!
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Answer:

1/64 c

Step-by-step explanation:

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If you were to spin a spinner at right what would be the probability of landing on green or purple
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