2 years ago

The owner of a flower shop on H street sells 28 roses for $140. What is the cost in dollars per rose?

Mathematics

2 answers:

Evgesh-ka [11]2 years ago

5 0

Answer:

$5 ( sorry if it is incorrect)

Step-by-step explanation:

charle [14.2K]2 years ago

5 0

The answer is 5. 140 divided 28 equals 5

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Answer: a) 0.6141

b) 0.9772

Step-by-step explanation:

Given : Mean : $\mu= 62.3\text{ in}$

Standard deviation : $\sigma = \text{2.4 in}$

The formula for z -score :

$z=\dfrac{x-\mu}{\dfrac{\sigma}{\sqrt{n}}}$

a) Sample size = 1

For x= 63 in. ,

$z=\dfrac{63-62.3}{\dfrac{2.4}{\sqrt{1}}}=0.29$

The p-value = $P(z$

$0.6140918\approx0.6141$

Thus, the probability is approximately = 0.6141

b) Sample size = 47

For x= 63 ,

$z=\dfrac{63-62.3}{\dfrac{2.4}{\sqrt{47}}}\approx2.0$

The p-value = $P(z$

$=0.9772498\approx0.9772$

Thus , the probability that they have a mean height less than 63 in =0.9772.

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vampirchik [111]

Y=-2/3x+2 i believe!!

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2 years ago

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loris [4]

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Step-by-step explanation:

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