Simplify the expression x^2-xy

Five years ago, Benjamin invested in Parchar Special Effects. He purchased four par value $1,000 bonds from Parchar Special Effe

lozanna [386]

Answer:

D

Step-by-step explanation:

yus

8 0

2 years ago

Julie tried to use the law of syllogism to draw a conclusion based on the statements below. Explain why she is not able to do so

ira [324]

Answer: The conditional statements are not in the correct form to make a conclusion using the law of syllogism. “If p, then q and if p, then r” cannot be used to draw a conclusion using the law of syllogism. The law of syllogism could be used if the hypothesis in the second statement was "if two pairs of congruent angles are formed."

Step-by-step explanation:

"If p, then q and if p, then r" cannot be used to draw a conclusion using the law of syllogism.

Neither of the conclusions of the conditional statements are the hypothesis of the other.

"If two pairs of congruent angles are formed" could be the hypothesis of the second statement.

** Both can be used to answer the question :)

4 0

3 years ago

Read 2 more answers

2. a² + b2 = c2 a=9 b=40

s344n2d4d5 [400]

I don’t know if you meant b^2 and c^2 or b x 2 and c x 2 so I’ll do both.

If it’s meant to be multiplied by 2, then you do 9^2 + (40)2 =c2

81 + 80 = c2

161 = c2
/2
80.5 = c

However I do doubt it’s that. This means it’s likely meant to be squared instead. In which case, use the following answer.

9^2 + 40^2 =c^2

1681 = c^2

Then square root both sides to get just c (which i assume is what you’re trying to find?)

Square root of 1681 = 41

So your answer would be 41.

3 0

3 years ago

sample daat reflects shipments received from 3 different vendors Vendor Defective Acceptable 1 16 133 2 25 74 3 24 187 what is c

Sergeu [11.5K]

Question: What is the correct hypothesis to determine if quality is associated with vendor?

By looking at other resources, I have found the choices given for this question. They are the following:

a. Null: Quality and source of shipment (vendor) are independent; Alternative: Quality and source of shipment (vendor) are dependent.
b. Null: Quality and source of shipment (vendor) are dependent; Alternative: Quality and source of shipment (vendor) are independent.

The test that would be applicable for this type of data would be the Chi-Square Test for Independence. As the name implies, the null hypothesis should be that the two factors are independent since that will be what we will be testing for.

ANSWER: a. Null: Quality and source of shipment (vendor) are independent; Alternative: Quality and source of shipment (vendor) are dependent.

Question: Calculate the value of the test statistic.

Please refer to the attached document for the complete computation for this part. Generally, we need to find the expected value for each cell in the table and perform some calculation explained in the document.

ANSWER: The test statistic is 12.80.

Question: Specify decision rule at the 1% significance level.

We can get the critical value for Chi-square tests by first looking for the degree of freedom. We can get the df by evaluating the following expression: (rows-1)*(columns-1). In our case, the number of columns is 2 and the number of rows is 3. The df is therefore (2-1)(3-1)=(1)(2)=2.

We then look at a table to determine what the value at the 1% significance level and df of 2 is.

ANSWER: We reject the null hypothesis if the test statistic is greater than the critical value which is 9.2103.

Question: What is your conclusion?

Since the test statistic (12.80) is greater than the critical value (9.2103), we can therefore tell that it is in the area for rejection.

Thus, we reject the null hypothesis.

ANSWER: There is enough evidence to conclude that the quality and source of shipment (vendor) are NOT independent.

Download docx

5 0

3 years ago

a local University wanted 2300 students out of 4500 applications for admission where was the acceptance rate as a percentage

EleoNora [17]

2300\4500*100=
51.11%

5 0

3 years ago