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3 years ago

Which products result in a sum or difference of cubes? Check all that apply.

2 answers:

8 0

C and E.
Formulas for sum of cubes and difference of cubes are:
a^3 + b^3 = (a + b) * (a^2 - a*b + b^2)
a^3 - b^3 = (a - b) * (a^2 + a*b + b^2)
-----------------------------------------------------
So, when you check each A, B, C, D, E, F, you can see that ONLY C and E satisfy the operators in both first and second parentheses.

UkoKoshka [18]3 years ago

7 0

Answer:

if you're from edge, the answer is C and E

Step-by-step explanation:

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A woman prospecting for successful business travels 16km from a point P to a point Q on a bearing of 065°. She then travels to p

SashulF [63]

Answer:

The distance PR is 21.6 Km

Step-by-step explanation:

Please find the attached document for explanation.

Also, I applied Cosine rule to determine the distance PR, since i have an angle (Q) in between two given sides of the triangle.

8 0

3 years ago

Need help.Pleaseeeee

Marina CMI [18]

Answer:

The first one and the last one

Step-by-step explanation:

To sub x>0 and x<0 into every functions.

Then, u will get some function that y doesn't have a negative value or positive value.

Then, these function doesn't fulfill the range.

Then, u will get the answer.

8 0

3 years ago

Someone please help me I suck @ simplifying thank you

dsp73

To solve this question, you would need to find the common denominator among the 2 fractions. In this case it would be

72.

Then multiply numbers to both of the fractions to get to the bottom number in both fractions equaling 72.

40/72 + 27/72 =67/72.

Try to reduce to lowest terms by dividing a common number from both of them if possible.

5 0

4 years ago

Read 2 more answers

Suppose two dice are tossed and the numbers on the upper faces are observed. Let S denote the set of all possible pairs that can

lesya [120]

Answer:

The set A={(1,2),(2,2),(3,2),(4,2),(5,2),(6,2),(1,4),(2,4),(3,4),(4,4),(5,4),(6,4),(1,(2,6),(3,6),(4,6),(5,6),(6,6)}

B={(2,2),(4,2),(6,2),(2,4),(2,6),(1,3),(1,5),(1,1),(3,1),(3,3),(3,5),(4,4),(4,6),(5,1),(5,3),(5,5),(6,4),(6,6)}

C={(1,1),(1,2),(1,3),(1,4),(1,5),(1,6),(2,1),(2,3),(2,5),(3,3),(3,5),(3,4),(3,6),(4,1),(4,3),(4,5),(5,1),(5,2),(5,3),(5,4),(5,5),(5,6),(6,1),(6,3),(6,5)}.

A∩B:{(2,2),(4,2),(6,2),(2,4),(2,6),(4,4),(4,6),(6,4),(6,6)}

A∪B={(1,2),(2,2),(4,2),(6,2),(2,4),(2,6),(4,4),(4,6),(6,4),(6,6),(3,2),(5,2),(1,4),(3,4),(5,4),(1,6),(3,6),(5,6),(1,3),(1,5),(1,1)(3,1),(3,3),(3,5),(5,1),(5,3),(5,5)}

A∩C={(1,2),(1,4),(1,6),(3,2),(3,4),(3,6),(5,2),(5,4),(5,6)}

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

There are 5 boys and 4 girls in my class. All of them are distinguishable. In how many ways can they be seated in a row of 9 cha

GalinKa [24]

There are 16 ways to arrange the row so that at least 3 girls always sit next to each other.

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3 years ago