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user100 [1]
2 years ago
9

[1 -4 3 5]+[-2 6 -2 4]

Mathematics
1 answer:
Rasek [7]2 years ago
4 0

Step-by-step explanation:

[1-2 -4+6 3-2 5+4]

[-1 2 1 9]

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As an aid to the establishment of personnel requirements, the director of a hospital wishes to estimate the mean number of peopl
erma4kov [3.2K]

Answer: 24.9793

Step-by-step explanation:

Given : The director randomly selects 64 different 24-hour periods and determines the number of admissions for each.

For this sample, he calculated a mean  \overlien{x}=396 and a standard deviation of 100.

The 95% confidence interval results in an interval of 396 \pm 24.9793

We know that the confidence interval for population mean is given by :_

\overlien{x}\pm E, where E is the margin of error.

By comparing this to the given interval , we find that the margin of error = 24.9793

5 0
3 years ago
A farmer planted corn in two different fields. He planted 500 seeds of regular corn in Field A and 500 seeds of experimental cor
slamgirl [31]

Answer:

1. More pollination process in the regular corn planted in field A than that of field B.

2. Low pest and insect attack on corn planted in field A compared to that of B.

Step-by-step explanation:

1. Pollination is the process in which a plant becomes fertilized, so as to produced seeds. The process requires some agent which could be; air, human, wind etc.

Therefore more pollination of the corn planted in field A than those in B would lead to more yield (ears of corn harvested) than that of B.

2. Pests and insects are agents which could reduce the yield of the corn after harvest. Comparing the two fields A and B, if the corn planted in field A were not affected by pests or insects, while those planted in B were affected, then more ears of corn would be harvested in field A.

8 0
3 years ago
Suppose that you buy a bond with face value $1,000 that was originally issued 18 months ago. The maturity date is 4 years from t
ziro4ka [17]

Answer:

Step-by-step explanation:

Interest earned during the rest of 2 years and 6 months

40 + 40 + 40 = 120

he will be getting 1000 at the time of maturity ie after 2.5 years .

Total receipt = 1000 + 120 = 1120

investment made = 820

total receipt earned = 1120

profit made = 300

time = 2.5 years

profit = investment x rate of intt x time / 100

300 = 820 x r x 2.5 / 100  where r is rate of interest

r = 30000 / 820 x 2.5

= 14.63 % .

4 0
2 years ago
Select Equal or Not Equal to correctly classify each statement.
Black_prince [1.1K]
The first problem is true because with multiplication it doesn't matter which order it is in.

The second problem is false because you will get a different quotient depending on which numbers are on which side of the equation.
3 0
3 years ago
Read 2 more answers
Kyle is pulled back on a swing so that the rope forms an angle of 30° with the vertical. The distance from the top of the swing
olga_2 [115]
This would be 12 - 12*cos(30) = 12 - 6\sqrt{3} =  1.608 ft off the ground. 
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3 years ago
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