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DanielleElmas [232]
3 years ago
7

Help me with the answer! 14 points!!

Mathematics
1 answer:
guajiro [1.7K]3 years ago
8 0

Answer:

hi :D

Step-by-step explanation:

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Aisha is a sales clerk at Macy's. She paid $8.00 per hour plus a commission of 4% on all sales. Assuming Aisha works 39 hours an
steposvetlana [31]

Answer:

Aisha gross pay equals $472

Step-by-step explanation:

If Aishat is paid $8.00 per hour, then for 39 hours, she will get

39 × 8 = $312

She gets 4% commission on all sales. If her sale is $4000, the her commission will be

4000 × 4/100

= $160

Then her total gross income will be $312 + $160 = $472

6 0
3 years ago
What is the product of 0.4 and 2.5
Maksim231197 [3]
.4 × 2.5 = 1. product means multiply / sum would be addition
4 0
3 years ago
Read 2 more answers
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 test of intelligence is given to a subject. The subject scores 110 on the first administration. Six months later, the same sub
Basile [38]

Answer:

True, the scores are not valid.

Step-by-step explanation:

The test supposed to be measuring intelligence. We can assume that the intelligence of most people relatively stable (will not change too much over a short amount of time), and can expect it should go upward with brain growth and education. But the test seems to give a huge decrease from the first and second results. Then the third result is a huge increase that even higher than the first test.  

We don't know the true value of the subject, but seeing the huge gap for every repetition we can tell that the test result lacks precision.

5 0
3 years ago
Que es el concepto de funcion?
den301095 [7]

El concepto básico de la función es que puede tomar cualquier número de valores, pero puede devolver solo un valor. La función es como una máquina en la que podemos darle una entrada / algo y obtener una salida o un conjunto de salidas. La entrada o el conjunto de entradas se llama dominio.


 

Sorry I Don't Speak Spanish That Good

5 0
3 years ago
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