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Ira Lisetskai [31]
3 years ago
15

I need help with question 3 part B please !

Mathematics
1 answer:
Alona [7]3 years ago
6 0

Answer:

Yes, one inch is a twlefth of a ft which is a porportion of a feet

Step-by-step explanation:

You might be interested in
Suppose that you have ​$11 comma 000
Vlada [557]

Answer:

The financial advisor is not using percentage properly.

Percentage loss=2%

Step-by-step explanation:

original amount invested=$11000

By the end of the first year, there was a decrease by 30% over the original amount.

This implies that the amount invested at after the end of the first year or at the beginning of the second year

=  \frac{70}{100} \times 11000

=$7,700

This amount has increased by 40%

=  \frac{140}{100} \times7700

=$10,780

The financial advisor is not using percentage properly.

This is because the decrease was on the original amount meanwhile the increase was not on the original amount. The increase was rather on an amount less than the original amount .

Since the original amount invested is greater than the amount at the end of the second year, there was a loss

Hence percentage loss

=\frac{11000 - 10780}{1100} \times 100\%

\frac{220}{11000}\times100\% = 2\%

5 0
3 years ago
A farmer has to make eight stops in delivering eggs. He begins with exactly the number of eggs he needs for these eight deliveri
Makovka662 [10]

Answer:

1/2 of an egg and use it for 7 houses?


7 0
3 years ago
What is 0.0000095 in scientific notation
NNADVOKAT [17]

Answer:9.5 *10(-6)

Step-by-step explanation:

3 0
4 years ago
Read 2 more answers
Please help!!!!!!!!!
exis [7]

Answer  u have to add all of it

Step-by-step explanation:

8 0
4 years ago
The distribution of resistance for resistors of a certain type is known to be normal, with 10% of all resistors having a resista
baherus [9]

Answer:

The mean is 9.65 ohms and the standard deviation is 0.2742 ohms.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

10% of all resistors having a resistance exceeding 10.634 ohms

This means that when X = 10.634, Z has a pvalue of 1-0.1 = 0.9. So when X = 10.634, Z = 1.28.

Z = \frac{X - \mu}{\sigma}

1.28 = \frac{10.634 - \mu}{\sigma}

10.634 - \mu = 1.28\sigma

\mu = 10.634 - 1.28\sigma

5% having a resistance smaller than 9.7565 ohms.

This means that when X = 9.7565, Z has a pvalue of 0.05. So when X = 9.7565, Z = -1.96.

Z = \frac{X - \mu}{\sigma}

-1.96 = \frac{9.7565 - \mu}{\sigma}

9.7565 - \mu = -1.96\sigma

\mu = 9.7565 + 1.96\sigma

We also have that:

\mu = 10.634 - 1.28\sigma

So

10.634 - 1.28\sigma = 9.7565 + 1.96\sigma

1.96\sigma + 1.28\sigma = 10.645 - 9.7565

3.24\sigma = 0.8885

\sigma = \frac{0.8885}{3.24}

\sigma = 0.2742

The mean is

\mu = 10.634 - 1.28\sigma = 10 - 1.28*0.2742 = 9.65

The mean is 9.65 ohms and the standard deviation is 0.2742 ohms.

8 0
4 years ago
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