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Alex
3 years ago
12

X^2=4 square root property

Mathematics
1 answer:
Olin [163]3 years ago
7 0

{x}^{2}  = 4 \\  x  =  \sqrt{4}  \\  x = 2
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For every 5 coins carmen gets ,she gives 2 to her brother Frankie.If carmen has 9 coins,howmany coins does Frankie have?
FrozenT [24]

Answer:

Frankie have 6 coins

Step-by-step explanation:

For every 5 coins Carmen gets ,she gives 2 to her brother Frankie

Out of 5 coins, Carmen given 2 to her brother Frankie

So Carmen has 3 coins and Frankie has 2 coins

Ratio of coins , Frankie to Carmen is

2: 3

We need to find the number of coins Frankie has if Carmen has 9 coins

ratio of Frankie to Carmen is x : 9

Now make a proportion and solve for x

\frac{2}{3} =\frac{x}{9}

Cross multiply it

2*9 = 3*x

18 = 3x

Now divide both sides by 3

so x= 6

Frankie have 6 coins

7 0
3 years ago
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Aleonysh [2.5K]

Answer: -3^4=-81\\(-3)^4=81\\3^{-4} =\frac{1}{81} \\-3^{-4} =-\frac{1}{81}


Step-by-step explanation: In some cases you must apply the exponent rule, simplify, or multiply them together to get your answer.


5 0
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Archy [21]
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