Can you guys help me?

Mathematics

2 answers:

fiasKO [112]3 years ago

8 0

16.
1/2= 0.5 and it takes 16 months to get to 8 inches.
0.5x16=8

KengaRu [80]3 years ago

3 0

Answer:

16 months

Step-by-step explanation:

since her hair grows at a rate of 1/2 an inch per month, it takes 2 months to grow a full inch.If she wants to grow it to 8 inches, you can multiply 2 by 8 (2 being months to grow a full inch and 8 to how many inches she wants) to get 16 months.

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The number of potato chips in a bag is normally distributed with a mean of 74 and and a standard deviation of 4. Approximately w

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Answer:

99.8% is the percent of bags contain between 62 and 86 potato chips.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 74

Standard Deviation, σ = 4

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Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

P( bags contain between 62 and 86 potato chips)

$P(62 \leq x \leq 86) = P(\displaystyle\frac{62 - 74}{4} \leq z \leq \displaystyle\frac{86-74}{4}) = P(-3 \leq z \leq 3)\\\\= P(z \leq 3) - P(z < -3)\\= 0.999 - 0.001 = 0.998 = 99.8\%$