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Elis [28]
3 years ago
10

Which expression has the same value as –y^–4?

Mathematics
2 answers:
MrMuchimi3 years ago
8 0
Answer is b

–y^–4 = – 1/y^4

hope that helps
Montano1993 [528]3 years ago
4 0

Answer:

-\frac{1}{y^{4}}

Step-by-step explanation:

we have

-y^{-4}

Remember that

y^{-b} =\frac{1}{y^{b}}

so

-y^{-4}=-\frac{1}{y^{4}}

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Assume the random variable X is normally distributed, with mean 45 and standard deviation is 8. Find the 9th percentile
Maksim231197 [3]

Answer:

the 9th percentile, i dont even know the first percentile

Step-by-step explanation:

5 0
3 years ago
An item on sale costs 70% of the original price. If the original price was $30, what is the sale price​
luda_lava [24]

Answer:

$21

Step-by-step explanation:

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6 0
4 years ago
Read 2 more answers
David uses 1/4 cups of apple juice for every 1/2 cup of carrot juice to make a fruit drink. Enter the number of cups of apple ju
ivanzaharov [21]

Answer:

1/2 cups of apple juice David used for 1 cup of carrot juice

Step-by-step explanation:

David uses 1/4 cups of apple juice for every 1/2 cup of carrot juice to make a fruit drink.

Two 1/2 cups of carrot juice makes 1 cup of carrot juice

because \frac{1}{2}  + \frac{1}{2} = \frac{2}{2} =1

For each 1/2 cups of carrot juice David used 1/4 cups of apple juice

For 1 cup of carrot juice , two 1/2 cups of carrot juice used

so two 1/4 cups of apple juice should be used for 1 cup of carrot juice

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7 0
3 years ago
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k0ka [10]
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7 0
4 years ago
There is a raffle for a $950 prize. Out of 125 tickets, each costing $18, one ticket will win the prize, and the rest will win n
mr Goodwill [35]

The expected value formula is

E=\Sigma x\cdot P(x)

We know that there are 125 tickets, so the probability of the ticket is

P(x)=\frac{1}{125}

Then, we find the expected value

E=950\cdot\frac{1}{125}=7.60<h2>Hence, the expected value is $7.60.</h2>

5 0
1 year ago
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