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stira [4]
2 years ago
9

What’s the answer for this?

Mathematics
1 answer:
Oksi-84 [34.3K]2 years ago
6 0

Answer:

$21.11

Step-by-step explanation:

Initial $15.00

After 1 year, $15.00 * (1 + 5%) = $15.00 * 1.05

After 2 years, $15.00 * 1.05 * (1 + 5%) = $15.00 * 1.05²

After 7 days: $15.00 * 1.05⁷ = $21.11

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Crop researchers plant 15 plots with a new variety of corn. The yields in bushels per acre are: 138.0 139.1 113.0 132.5 140.7 10
son4ous [18]
There is a relationship between confidence interval and standard deviation:
\theta=\overline{x} \pm \frac{z\sigma}{\sqrt{n}}
Where \overline{x} is the mean, \sigma is standard deviation, and n is number of data points.
Every confidence interval has associated z value. This can be found online.
We need to find the standard deviation first: 
\sigma=\sqrt{\frac{\sum(x-\overline{x})^2}{n}
When we do all the calculations we find that:
\overline{x}=123.8\\ \sigma=11.84
Now we can find confidence intervals:
($90\%,z=1.645): \theta=123.8 \pm \frac{1.645\cdot 11.84}{\sqrt{15}}=123.8 \pm5.0\\($95\%,z=1.960): \theta=123.8 \pm \frac{1.960\cdot 11.84}{\sqrt{15}}=123.8 \pm 5.99\\ ($99\%,z=2.576): \theta=123.8 \pm \frac{2.576\cdot 11.84}{\sqrt{15}}=123.8 \pm 7.87\\
We can see that as confidence interval increases so does the error margin. Z values accociated with each confidence intreval also get bigger as confidence interval increases.
Here is the link to the spreadsheet with standard deviation calculation:
https://docs.google.com/spreadsheets/d/1pnsJIrM_lmQKAGRJvduiHzjg9mYvLgpsCqCoGYvR5Us/edit?usp=sharing
6 0
3 years ago
A. Find m<br> b. you write the measures of
Marizza181 [45]
Is there’s more to this question?
8 0
3 years ago
Johannes want to earn at least $350 per week. His work week is 40 hrs, what is the minimum hourly wage he must make?
pentagon [3]

Answer: minimum hourly wage is $8.75

Step-by-step explanation:

To get the minimum hourly wage, we divide $350 by 40hrs

= $350 ÷ 40

= $8.75

3 0
3 years ago
Read 2 more answers
What would (4,3) be after it is reflected to the y=x
Paul [167]

Answer:

(3,4)

Step-by-step explanation:

The amount of steps applied from the reflection line to the point would be also applied inversely to the image point (after reflection).

From y=x to (4,3), it goes 1 down and also goes 1 right. (NOTE: It does not go down and right. Instead, it goes <em>either</em> down and right)

So now inverse that to make 1 up and also going 1 left.

5 0
3 years ago
What is 3/4 + 2/3 ???
erica [24]
To add fractions, first convert them to have equal denominators.

3/4= 9/12 (multiply both sides by 3)
2/3= 8/12 (multiply both sides by 4)

From here, add the numerators while keeping the denominator.
9/12+ 8/12= 17/12

Final answer: 17/12 or 1 5/12
3 0
3 years ago
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