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raketka [301]
3 years ago
12

7. 9+ 4y – 2y = 1 + 6y How to solve

Mathematics
1 answer:
Alona [7]3 years ago
8 0

2 = y

Work is attached in the image provided.

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3 3/4 x 2/5 please help
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Answer:

3.3

Step-by-step explanation:

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The director of the library calculates that 29% of the library's collection is checked out. If the director is right, what is th
marusya05 [52]

Answer:

The probability that the proportion of books checked out in a sample of 412 books would differ from the population proportion by less than 4% is P=0.9255.

Step-by-step explanation:

The population's proportion is \pi=0.29

If we take a sample of 412 books (n=412), we have a standard deviation of the sampling distribution of:

\sigma_M=\sqrt{\frac{\pi(1-\pi)}{n}}=\sqrt{\frac{0.29*0.71}{412}}=\sqrt{0.0005} =0.0224

We have to calculate the probabilty that the sample proportion will be between 0.25 and 0.33.

z_1=(0.25-0.29)/0.0224=-0.04/0.0224=-1.7857\\\\z_2=1.7857\\\\\\P(0.25

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At a restaurant, the bill comes to $30. If you decide to leave a 14% tip, how much is the tip?
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You would leave a $4.20 tip.
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What happens when the multiplicity of a real root is odd?
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A: the graph will cross the x-axis

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The zoom feature on a copier sets the percent size of a copy. Lebron wants to make a 200% copy of a photograph. The original pho
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10 in; if the original 100% was 5 in, then you multiply that by 2. 
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