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AlladinOne [14]
3 years ago
14

PLZZ HELP ( இ n இ ) i only need part B

Mathematics
1 answer:
tatyana61 [14]3 years ago
5 0

Answer:

what does the n mean

Step-by-step explanation:

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It takes an hour to mow a lawn using a mower with blades 14 inches wide. How long would it take using a mower with blades 12 inc
Ganezh [65]

Answer: It would take 40 minutes to mow a lawn with a mower containing 12-inch wide blades.

Step-by-step explanation:

5 0
3 years ago
It appears that people who are mildly obese are less active than leaner people. One study looked at the average number of minute
fredd [130]

Answer:

0.0322; 0.9929

Step-by-step explanation:

Since the data is normally distributed, we use z scores for these probabilities.

The formula for a z score of a sample mean is

z=\frac{\bar{X}-\mu}{\sigma \div \sqrt{n}}

For the sample of mildly obese people, the mean, μ, is 371; the standard deviation, σ, is 65; and the sample size, n, is 6.

Using 420 for X,

z = (420-371)/(65÷√6) = 49/(65÷2.4495) = 49/26.5360 ≈ 1.85

Using a z table, we see that the area under the curve to the left of this is 0.9678.  However, we want the area to the right, so we subtract from 1:

1-0.9678 = 0.0322

For the sample of lean people, the mean, μ, is 528; the standard deviation, σ, is 108; the sample size, n, is 6.

Using 420 for X, we have

z = (420-528)/(108÷√6) = -108/(108÷2.4495) = -108/44.0906 ≈ -2.45

Using a z table, we see that the area under the curve to the left of this is 0.0071.  We want the area under the curve to the right, so we subtract from 1:

1-0.0071 = 0.9929

7 0
2 years ago
A package of dried fruit weighs 1/2 of a pound if one serving size is 1/8 of a pound how many servings would be in the package
sattari [20]
4 because 1/8 goes into 1/2 4 times. 1/2 divided by 1/8 equals 4. 1/8 times 4 equals 1/2.
8 0
3 years ago
Last one, omg so ready to be done with school.
Igoryamba

Answer:

It would be G but i dont know

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Asap!!!!!!!! Can you help me please
Oksana_A [137]
C is the only one that makes sense im not 100%

6 0
2 years ago
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