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notka56 [123]
3 years ago
7

A lap around a track is 2/5 of a mile How many laps is a 11/2

Mathematics
1 answer:
Vesnalui [34]3 years ago
7 0

Answer: 4 laps

Step-by-step explanation:

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A random sample of 85 group leaders, supervisors, and similar personnel at General Motors revealed that, on average, they spent
andreyandreev [35.5K]

Answer:

Step-by-step explanation:

From the information given,

Number of personnel sampled, n = 85

Mean or average = 6.5

Standard deviation of the sample = 1.7

We want to determine the confidence interval for the mean number of years that personnel spent in a particular job before being promoted.

For a 95% confidence interval, the confidence level is 1.96. This is the z value and it is determined from the normal distribution table. We will apply the following formula to determine the confidence interval.

z×standard deviation/√n

= 1.96 × 6.5/√85

= 1.38

The confidence interval for the mean number of years spent before promotion is

The lower end of the interval is 6.5 - 1.38 = 5.12 years

The upper end is 6.5 + 1.38 = 7.88 years

Therefore, with 95% confidence interval, the mean number of years spent before being promoted is between 5.12 years and 7.88 years

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3 years ago
What it the absolute value of 99
olganol [36]

Answer:

99

Step-by-step explanation:

The distance between 0 and 99 is 99

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3 years ago
Rewrite 12 1 /5 and 8 7/10 with a common denominator
Liono4ka [1.6K]

Answer:

12 2/10 and 8 7/10

Step-by-step explanation:

5 x 2 = 10

10 = 10

12 \frac{1}{5} * \frac{2}{2}  = 12\frac{2}{10}

6 0
3 years ago
A rectangle has a perimeter of 24 inches. If the width is 5 more than twice the length,
cupoosta [38]

Answer:

Step-by-step explanation:width is 11 length is 13

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Del Taco sells 4 Tacos for $5.00. Taco Bell sells 5 tacos for $7.50. is a better deal, because it costs less per taco.
NemiM [27]

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Tacos costs 12.50

Step-by-step explanation:

6 0
2 years ago
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