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Salsk061 [2.6K]
3 years ago
8

Evaluate 9P2- need to make a good grade

Mathematics
1 answer:
Svetllana [295]3 years ago
3 0
81, if you mean 9 Squared.
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5. Tom had 321 dollars to spend on 9 books. After buying them he had 15 dollars. How much
Andrew [12]

Answer:

It should be $34

Step-by-step explanation:

321 - 15 = 306 ÷ 9 = 34

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2 years ago
Converting a decimal to a mixed number as a improper fraction
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7 2/10 (or 7 1/5)
36/5
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3 years ago
Find the value of X.
iris [78.8K]

Answer:

Step-by-step explanation:

90 + 122 + 4x + 19 + 9x - 8 + 7x - 3 = 540

220 + 20x = 540

-220             -220

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

20x = 320

/20     /20

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

x = 16

8 0
2 years ago
The policy of the Kauderman's pawnshop is to lend up to 30% of the value of borrower's collateral. Tommy wants to use a pair of
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30/100×$1500 = $450

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Tommy needs total capital of $1500 and he wants to lend 30% of loan from kaunderman, which is calculated as above.

8 0
3 years ago
The number of flaws per square yard in a type of carpet material varies with mean 1.4 flaws per square yard and standard deviati
oksian1 [2.3K]
According to the Central Limit Theorem, the distribution of the sample means is approximately normal, with the mean equal to the population mean (1.4 flaws per square yard) and standard deviation given by:
\frac{\sigma}{ \sqrt{n} }=\frac{1.2}{ \sqrt{178} }=0.09
The z-score for 1.5 flaws per square yard is:
z=\frac{1.5-1.4}{0.09}=1.11
The cumulative probability for a z-score of 1.11 is 0.8665. Therefore the probability that the mean number of flaws exceeds 1.5 per square yard is
1 - 0.8665 = 0.1335.
6 0
3 years ago
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