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Elena-2011 [213]
3 years ago
13

3. Letx = -5 and y=-*

Mathematics
1 answer:
Varvara68 [4.7K]3 years ago
6 0

Answer:

A

Step-by-step explanation:

I don't really understand the numbers but if both X and Y are negative, then adding the 2 will result in a negative value.  Multiplying 2 negative values will be positive, as will dividing them, and sometimes subtracting will too.

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A sample of n = 9 college students is used to evaluate the effectiveness of a new Study Skills Workshop. Each student’s grade po
Vinil7 [7]

Answer:

80% Confidence interval:  (0.4603,0.7397)

Step-by-step explanation:

We are given the following in the question:

Sample mean, \bar{x} = MD = 0.60 points

Sample size, n = 9

Sample variance =  0.09

Sample standard Deviation =

=\sqrt{\text{Sample Variance}} = \sqrt{0.09} = 0.3

80% Confidence interval:  

\bar{x} \pm t_{critical}\displaystyle\frac{s}{\sqrt{n}}  

Putting the values, we get,  

t_{critical}\text{ at degree of freedom 8 and}~\alpha_{0.20} = \pm 1.397  

0.60 \pm 1.397(\frac{0.3}{\sqrt{9}} ) = 0.60 \pm 0.1397 = (0.4603,0.7397)

8 0
4 years ago
What is the value of x?<br> Enter your answer in the box.<br> X=
krek1111 [17]

Answer:

x=11 just a guess not so sure

7 0
3 years ago
4x-7&gt;17<br>solve inequality
Vlad [161]
We have to isolate x.
to do that we first have to add 7 to both sides
4x-7+7>17+7
now we have 4x>24
then we have to divide by 4 on both sides
4x/4>24/4
then we have the answer 
x>6
8 0
3 years ago
Lou arranges 504 entries on a spreadsheet in a rectangular array that has 36 rows. How many entries are in each row?
horrorfan [7]
504/36=14. rate brainiest answer please!
4 0
4 years ago
Which of the following statements regarding immunization are true?
DochEvi [55]

Answer:

B. II only

Step-by-step explanation:

Immunisation is used to lower the risk factor that may arise due to change in interest rate . For it, cash inflow and cash outflow are matched in terms of their timing . In other words, effective duration of asset and liability are matched with the help of methods like cash flow matching , duration matching etc.

Even lowering of interest  rate in long term may entail risk because it may increase the bond price which may affect the business adversely in some way if bond is kept as liability . It may reduce the price of asset if it is held as asset .

Exact matching is possible only when matching of cash flow is achieved along with its timing . Matching of present value will not serve the purpose .

Macaulay or modified duration can be used to develop an immunization strategy . Both of them calculate the duration of asset and liability with some change in the method of calculation.

8 0
4 years ago
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